A defoaming device for biological fermentation

Abstract

This utility model discloses a defoaming device for a biological fermentation process, including a fermentation tank and a cover mounted on the fermentation tank. The fermentation tank and the cover are equipped with the same defoaming mechanism. The defoaming mechanism includes a connecting plate positioned above the cover, a motor mounted on the connecting plate, and a rotating rod rotatably mounted under the bottom surface of the connecting plate, connected to the output end of the motor. A movable frame is provided under the bottom surface of the connecting plate via evenly distributed insert rods. The motor drives the rotating rod to rotate a spirally shaped plate, causing the spirally distributed defoaming nails to move in a circular motion. Utilizing the extensibility of the spiral structure, the movement range of the defoaming nails is expanded, allowing them to reach most areas inside the fermentation tank and effectively eliminate foam. An air bladder under the bottom surface of the movable frame floats up and down with changes in the liquid level using buoyancy, causing the movable frame and defoaming nails to rise and fall synchronously, ensuring the defoaming nails always remain in contact with the liquid surface. This design automatically adapts to changes in the liquid level and effectively increases the defoaming range.

Description

Technical Field

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

[0002] Bio-fermentation engineering is an important component of bioengineering. Microorganisms utilize carbohydrate fermentation to produce various industrial solvents and chemical raw materials. Ethanol, acetone-butanol, butanol-isopropanol, acetone-ethanol, 2,3-butanediol and glycerol fermentation are several forms of solvent fermentation carried out by microorganisms.

[0003] A search revealed a patent with publication number CN222729784U, which discloses a defoaming device for a bio-fermentation process. The device includes a cover plate, a pressure relief valve fixedly connected to the surface of the cover plate, a support frame fixedly connected to the outer surface of the cover plate, and a servo motor installed inside the support frame. The output end of the servo motor is connected to an axial defoaming component via a coupling. A longitudinal defoaming component is mounted on the surface of the axial defoaming component. The output end of the servo motor is connected to both the axial and longitudinal defoaming components via a coupling. The servo motor drives the support base to perform an axial arc-shaped reciprocating rotation. Defoaming nails B on the surface of the support plate defoam the foam. A reciprocating electric push rod drives a transmission plate to perform a longitudinal reciprocating motion. Defoaming nails A on the surface of the transmission plate defoam the foam. A smooth rod passes through the support base. During the movement of the transmission plate, the support base provides auxiliary guidance to the smooth rod, maintaining its stable movement in the longitudinal position, resulting in excellent performance.

[0004] In the aforementioned prior art, defoaming is mainly achieved by defoaming nails A and B. However, the existing defoaming nails can only function within their movement trajectory. In some corners of the fermentation tank or areas that are difficult for the defoaming components to reach, the foam cannot be effectively eliminated. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing defoaming devices in the bio-fermentation process, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A defoaming device for a biological fermentation process includes a fermentation tank and a cap disposed on the fermentation tank, wherein the fermentation tank and the cap are provided with the same defoaming mechanism.

[0008] As a preferred embodiment of the defoaming device in the biological fermentation process described in this utility model, the defoaming mechanism includes a connecting plate above the cap, a motor on the connecting plate, a rotating rod rotatably mounted under the bottom surface of the connecting plate and connected to the output end of the motor, a movable frame provided under the bottom surface of the connecting plate via evenly distributed insert rods, the insert rods being inserted into and slidably assembled with the cap, the movable frame being slidably mounted inside the fermentation tank, the rotating rods being inserted into and rotatably mounted with the movable frame, a rotating plate rotatably mounted inside the movable frame, the rotating rods being connected to the rotating plate, an irregularly shaped plate provided under the bottom surface of the rotating plate, and evenly distributed defoaming nails provided on the outer wall of the irregularly shaped plate.

[0009] As a preferred embodiment of the defoaming device in the bio-fermentation process described in this utility model, the bottom surface of the connecting plate is provided with a tube through evenly distributed connecting columns, and the tube is fitted with a cap and set on the movable frame. The rotating rod is fitted with the tube and rotated.

[0010] As a preferred embodiment of the defoaming device in the biological fermentation process described in this utility model, the irregular plate is configured with a spiral structure.

[0011] As a preferred embodiment of the defoaming device in the biological fermentation process described in this utility model, the defoaming nails are evenly distributed in a spiral shape under the bottom surface of the irregular plate.

[0012] As a preferred embodiment of the defoaming device in the biological fermentation process described in this utility model, a piston sleeve is fitted on the outer wall of the movable frame.

[0013] As a preferred embodiment of the defoaming device in the biological fermentation process described in this utility model, an air bladder is provided under the bottom surface of the movable frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In this solution, the motor drives the rotating rod to rotate the spiral-structured irregular plate, causing the spirally distributed defoaming nails to make circular motion. By utilizing the extensibility of the spiral structure, the range of motion of the defoaming nails is expanded, enabling them to reach most areas inside the fermentation tank and effectively eliminate foam. The airbag under the bottom of the movable frame uses buoyancy to float up and down with the changes in the liquid level, causing the movable frame and the defoaming nail to rise and fall synchronously, so that the defoaming nail always keeps in contact with the liquid surface. Through this design, it can automatically adapt to changes in the liquid level and effectively improve the defoaming range. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of a defoaming device in a biological fermentation process according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a fermenter for a defoaming device in a biological fermentation process according to this utility model; Figure 3 This is a schematic diagram of the defoaming mechanism of a defoaming device in a biological fermentation process according to the present invention. Figure 4 This is a schematic diagram of the irregular plate structure of a defoaming device in a biological fermentation process according to this utility model.

[0016] In the diagram: 1. Fermentation tank; 2. Cover; 3. Defoaming mechanism; 4. Connecting plate; 5. Motor; 6. Insert rod; 7. Movable frame; 8. Insert cylinder; 9. Connecting column; 10. Rotating rod; 11. Rotating plate; 12. Defoaming nail; 13. Airbag; 14. Irregularly shaped plate. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Example Please see Figures 1-4 This utility model provides a technical solution: A defoaming device for biological fermentation can expand the defoaming range, effectively eliminate foam in various areas of the fermenter, and automatically adapt to changes in the liquid level during fermentation, thereby improving the defoaming effect and efficiency.

[0021] The defoaming device in this bio-fermentation process includes a fermenter 1 and a cap 2 installed on the fermenter 1. The fermenter 1 is a cylindrical tank used for bio-fermentation reactions. The cap 2 seals the top of the fermenter 1 to prevent contamination by other microorganisms and material overflow. The same defoaming mechanism 3 is provided on both the fermenter 1 and the cap 2 to eliminate foam generated during fermentation.

[0022] The defoaming mechanism 3 includes a connecting plate 4 set above the cap 2. The connecting plate 4 is a metal plate that serves as a connector and support. A motor 5 is fixed to the connecting plate 4 by bolts. The motor 5 is a servo motor that provides power output. A rotating rod 10 is rotatably mounted on the bottom surface of the connecting plate 4 through a bearing. The rotating rod 10 is connected to the output end of the motor 5 through a coupling. The motor 5 can drive the rotating rod 10 to rotate.

[0023] A movable frame 7 is installed under the bottom of the connecting plate 4 via evenly distributed insert rods 6. The insert rods 6 are metal rods, into which the cover 2 is inserted and slidably assembled, allowing the movable frame 7 to move vertically. The movable frame 7 is slidably installed inside the fermentation tank 1. A rotating rod 10 is inserted into the movable frame 7 and rotated via a bearing. A piston sleeve is fitted on the outer wall of the movable frame 7, which fits tightly against the inner wall of the fermentation tank 1 to ensure sealing when the movable frame 7 moves. A rotating plate 11 is rotatably installed inside the movable frame 7 via a bearing. The rotating rod 10 and the rotating plate 11 are connected by a key, and the rotation of the rotating rod 10 can drive the rotating plate 11 to rotate synchronously. A shaped plate 14 is welded under the bottom of the rotating plate 11. The shaped plate 14 is spirally constructed, and its outer wall is provided with evenly distributed defoaming nails 12. The evenly distributed defoaming nails 12 are spirally distributed under the bottom of the shaped plate 14. The defoaming nails 12 are sharp metal nails used to puncture foam.

[0024] A cylindrical insert 8 is installed under the bottom surface of the connecting plate 4 via evenly distributed connecting columns 9. A cap 2 is inserted into the cylindrical insert 8, which is then mounted on the movable frame 7. A rotating rod 10 is inserted into the cylindrical insert 8 and rotated via bearings. The cylindrical insert 8 provides support and guidance for the rotating rod 10. An air bladder 13 is fixedly installed under the bottom surface of the movable frame 7. The air bladder 13 is an elastic rubber bladder, inflated internally, and can float up and down with changes in the liquid level.

[0025] Motor 5 drives the rotating rod 10 to rotate the spiral-structured irregular plate 14, causing the spirally distributed defoaming nails 12 to move in a circular motion. Utilizing the extensibility of the spiral structure, the movement range of the defoaming nails 12 is expanded, allowing them to reach most areas inside the fermentation tank 1 and effectively eliminate foam. The air bladder 13 under the bottom of the movable frame 7 uses buoyancy to float up and down with changes in the liquid level, causing the movable frame 7 and the defoaming nails 12 to rise and fall synchronously, ensuring that the defoaming nails 12 always remain in contact with the liquid surface, automatically adapting to changes in the liquid level, and ensuring the continuity of the defoaming effect.

[0026] In use, add the fermentation raw materials into the fermentation tank 1, and close the lid 2 to ensure the device is sealed. As the fermentation reaction proceeds, foam will be generated from the raw materials. At this time, start the motor 5, which drives the rotating rod 10 to rotate. The rotating rod 10 drives the rotating plate 11 and the irregular plate 14 to rotate synchronously. When the irregular plate 14 rotates, it drives the spirally distributed defoaming nails 12 to make a circular motion. During the rotation, the defoaming nails 12 puncture the foam in the fermentation tank 1. Due to the spiral structure of the irregular plate 14, the movement trajectory of the defoaming nails 12 has a wide coverage area, which can not only eliminate the foam in the central area, but also continuously extend outward to eliminate the foam in the corners. During the fermentation process, the liquid level will change with the progress of the reaction. The air bladder 13 under the bottom of the movable frame 7 is affected by... The liquid level is supported by the airbag 13. When the liquid level rises, the airbag 13 floats upward, causing the movable frame 7 to slide upward along the inner wall of the fermenter 1, and the insert rod 6 slides on the cover 2 accordingly. When the liquid level falls, the airbag 13 moves downward under the action of gravity, causing the movable frame 7 to slide downward, so that the defoaming nail 12 always remains flush with the liquid level without manual adjustment. The piston sleeve on the outer wall of the movable frame 7 ensures the seal between the movable frame 7 and the inner wall of the fermenter 1, preventing foam from overflowing from the gaps. The insert 8 provides stable support for the rotating rod 10, preventing the rotating rod 10 from shaking during rotation and ensuring the stability of the movement of the defoaming nail 12. After the fermentation reaction is completed, the motor 5 is turned off. After the foam is completely eliminated, the cover 2 is opened and the fermentation product is taken out.

[0027] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for de-foaming in a biological fermentation process, characterized in that, It includes a fermentation tank (1) and a cover (2) provided on the fermentation tank (1), and the same defoaming mechanism (3) is provided on the fermentation tank (1) and the cover (2). The defoaming mechanism (3) includes a connecting plate (4) above the cap (2), a motor (5) is provided on the connecting plate (4), a rotating rod (10) is rotatably installed under the bottom surface of the connecting plate (4), and the rotating rod (10) is connected to the output end of the motor (5). A movable frame (7) is provided under the bottom surface of the connecting plate (4) through evenly distributed insert rods (6), and the insert rods (6) are inserted into the cap (2) and slidably assembled. The movable frame (7) is slidably installed in the fermentation tank (1), and the rotating rod (10) is inserted into the movable frame (7) and rotatably installed. A rotating plate (11) is rotatably installed in the movable frame (7), and the rotating rod (10) is connected to the rotating plate (11). A shaped plate (14) is provided under the bottom surface of the rotating plate (11), and defoaming nails (12) are evenly distributed on the outer wall of the shaped plate (14).

2. A foam removal device in a biological fermentation process according to claim 1, characterized in that The bottom surface of the connecting plate (4) is provided with a tube (8) through a uniformly distributed connecting column (9), and the tube (8) is fitted with a cover (2) and set on the movable frame (7). The rotating rod (10) is fitted with the tube (8) and rotated.

3. The defoaming device for a biological fermentation process according to claim 1, characterized in that, The irregular plate (14) is configured with a spiral structure.

4. The defoaming device for a biological fermentation process according to claim 1, characterized in that, The defoaming nails (12) are evenly distributed in a spiral shape under the bottom surface of the irregular plate (14).

5. A defoaming device for a biological fermentation process according to claim 1, characterized in that, A piston sleeve is fitted on the outer wall of the movable frame (7).

6. A defoaming device for a biological fermentation process according to claim 1, characterized in that, An airbag (13) is provided under the bottom surface of the movable frame (7).

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