Dynamic oxygen supply system based on microbial activity

Abstract

The utility model provides a dynamic oxygen supply system based on microorganism activity relates to the technical field of microbiological engineering and biological reaction equipment, including the culture reaction cabin, the culture reaction cabin top fixed installation has the motor, the output of motor transmission has the screw rod. The utility model passes through the transmission cooperation of lead screw and the thimble, the combination gas liquid mixed wing on the sliding adjustment of dynamic guide rail, has realized the real -time dynamic response of oxygen supply process. The oxygen release mouth and oxygen supply mouth of symmetrical distribution on the lead screw, in the mobile process of thimble drive gas liquid mixed wing, can according to the spatial distribution difference accurate release and supply oxygen of microorganism metabolic activity. When the oxygen consumption rate of microorganism gathering area is high, gas liquid mixed wing expands the coverage range along the sliding of dynamic guide rail through the telescopic link, cooperates the directional oxygen supply of oxygen release mouth, avoids the decline of microorganism activity caused by local hypoxia, significantly improves the matching degree of oxygen supply and microorganism demand.

Description

Technical Field

[0001] This utility model relates to the field of microbial engineering and bioreactor equipment technology, and in particular to a dynamic oxygen supply system based on microbial activity. Background Technology

[0002] In the field of resource utilization of livestock and poultry breeding waste, aerobic fermentation technology transforms manure into organic fertilizer through the metabolic activities of microorganisms. This not only reduces pollutants but also recovers nutrient resources, making it one of the key technologies for solving environmental pollution problems in the livestock industry. However, the aerobic fermentation process has extremely stringent requirements for environmental conditions and oxygen supply control. The activity of microorganisms (mainly aerobic bacteria and actinomycetes) directly depends on the synergistic balance of parameters such as oxygen concentration, temperature, and humidity. Sufficient oxygen supply can accelerate the decomposition and transformation of organic matter by microorganisms, while insufficient oxygen concentration will lead to anaerobic fermentation, producing foul-smelling gases and prolonging the composting period.

[0003] In hot and humid regions like Yunnan, aerobic fermentation of livestock and poultry manure faces even more significant technical challenges. High temperatures can cause the local temperature of the fermentation pile to rise rapidly above 65°C, exceeding the suitable activity range for microorganisms. High humidity reduces the pile's permeability and increases resistance to oxygen transfer. The combined effect of these two factors can easily lead to uncontrolled fermentation, resulting in problems such as localized anaerobic digestion, incomplete composting, and high ammonia volatilization. This not only reduces the quality of organic fertilizer but also exacerbates environmental pollution. Traditional methods of oxygen supply for livestock and poultry manure fermentation often rely on fixed-frequency aeration or manual turning, which have significant limitations: fixed aeration cannot dynamically adjust the air supply based on real-time oxygen consumption, easily leading to over-oxidation and energy waste or insufficient oxygen supply causing fermentation stagnation; manual turning is not only labor-intensive and inefficient but also makes it difficult to precisely control the uniformity of the pile structure, resulting in an unbalanced oxygen distribution. Summary of the Invention

[0004] To overcome the problems in the prior art, this utility model provides a dynamic oxygen supply system based on microbial activity.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A dynamic oxygen supply system based on microbial activity mainly includes a culture reaction chamber. A motor is fixedly installed at the top of the culture reaction chamber, and a threaded rod is driven to the output end of the motor. A lead screw is sleeved on the outside of the threaded rod, and a gas-liquid separation baffle fixedly connected to the culture reaction chamber is provided between the threaded rod and the lead screw. The inner wall of the gas-liquid separation baffle is clearance-fitted with the outer wall of the lead screw. Oxygen release ports and oxygen supply ports are respectively opened on the upper and lower side walls of the lead screw, and the oxygen release ports and oxygen supply ports are symmetrically distributed. A collar is sleeved on the outside of the lead screw, and a gas-liquid mixing wing is symmetrically fixedly connected to the side wall of the collar. The bottom end of the gas-liquid mixing wing abuts against the inner bottom wall of the culture reaction chamber. A telescopic rod is fixedly connected to the end of the gas-liquid mixing wing away from the collar. A dynamic flow guide rail is fixedly installed at the bottom of the culture reaction chamber, and the movable end of the telescopic rod is slidably connected to an electric slide rail. A strip-shaped metabolic product discharge port is opened at the bottom of the culture reaction chamber, and an airtight gate is slidably installed inside the metabolic product discharge port.

[0006] Preferably, the height of the gas-liquid mixing blade is equal to the vertical distance from the bottom of the lead screw to the top wall of the oxygen supply port, and the height of the gas-liquid mixing blade is the same as the extension length of a single section of the telescopic rod.

[0007] Preferably, the surface of the electric slide rail is covered with a high-temperature resistant protective sleeve, and the protective sleeve is in close contact with the surface of the electric slide rail.

[0008] Preferably, the driving section of the lead screw is the cylinder wall portion between the oxygen release port and the oxygen supply port, and the collar is adapted to be disposed on the outside of the driving section of the lead screw.

[0009] Preferably, a groove is formed on the inner sidewall of the metabolic product discharge port, and an electric actuator is fixedly installed at the top of the groove, with a connecting rod fixedly connected to the output end of the electric actuator.

[0010] Preferably, a micro motor is fixedly installed inside the connecting rod, and the output end of the micro motor is connected to a rotating shaft, which is rotatably connected to the airtight gate.

[0011] Preferably, the outer peripheral sidewalls of the airtight gate are all fixedly connected with sealing gaskets, and the sealing gaskets are in close contact with the inner sidewalls of the metabolic product discharge port.

[0012] The beneficial effects of this utility model are:

[0013] This invention achieves real-time dynamic response in the oxygen supply process through the transmission cooperation of a lead screw and a collar, combined with the sliding adjustment of the gas-liquid mixing blade on a dynamic guide track. The symmetrically distributed oxygen release and supply ports on the lead screw, as the collar drives the gas-liquid mixing blade to move, can precisely release and supply oxygen according to the spatial distribution differences in microbial metabolic activity. When the oxygen consumption rate in the microbial aggregation area increases, the gas-liquid mixing blade expands its coverage area by sliding along the dynamic guide track via a telescopic rod. Combined with the directional oxygen supply from the oxygen release ports, this avoids the decline in microbial activity caused by localized hypoxia, significantly improving the matching degree between oxygen supply and microbial needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the culture reaction chamber of this utility model.

[0015] Figure 2 This is a schematic diagram of the gas-liquid mixing wing structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the airtight gate installation structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the airtight gate drive structure of this utility model.

[0018] In the diagram: 1. Culture reaction chamber; 2. Lead screw; 3. Gas-liquid separation baffle; 4. Oxygen release port; 5. Oxygen supply port; 6. Metabolic product discharge port; 7. Collar; 8. Gas-liquid mixing vane; 9. Motor; 10. Threaded rod; 11. Slide groove; 12. Electric actuator; 13. Airtight gate; 14. Sealing gasket; 15. Connecting rod; 16. Micro motor; 17. Rotating shaft; 18. Telescopic rod; 19. Dynamic guide rail. Detailed Implementation

[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0020] This utility model discloses a dynamic oxygen supply system based on microbial activity. The system mainly includes a culture reaction chamber 1, with a motor 9 fixedly installed at the top. The output end of the motor 9 is connected to a threaded rod 10. A lead screw 2 is sleeved on the outer side of the threaded rod 10, and a gas-liquid separation partition 3, fixedly connected to the culture reaction chamber 1, is provided between the threaded rod 10 and the lead screw 2. The inner wall of the gas-liquid separation partition 3 is clearance-fitted with the outer wall of the lead screw 2. Oxygen release ports 4 and oxygen supply ports 5 are respectively opened on the upper and lower side walls of the lead screw 2. The inlet 4 and oxygen supply inlet 5 are symmetrically distributed; a collar 7 is sleeved on the outside of the lead screw 2, and a gas-liquid mixing wing 8 is symmetrically fixedly connected to the side wall of the collar 7. The bottom end of the gas-liquid mixing wing 8 abuts against the inner bottom wall of the culture reaction chamber 1; a telescopic rod 18 is fixedly connected to the end of the gas-liquid mixing wing 8 away from the collar 7; a dynamic guide rail 19 is fixedly installed at the bottom of the culture reaction chamber 1, and the movable end of the telescopic rod 18 is slidably connected to the electric slide rail; a strip-shaped metabolite discharge port 6 is opened at the bottom of the culture reaction chamber 1, and an airtight gate 13 is slidably installed in the metabolite discharge port 6.

[0021] The height of the gas-liquid mixing blade 8 is equal to the vertical distance from the bottom of the lead screw 2 to the top wall of the oxygen supply port 5, and the height of the gas-liquid mixing blade 8 is the same as the extension length of a single section of the telescopic rod 18. This design ensures that the gas-liquid mixing blade 8 maintains effective coordination with the oxygen release port 4 and oxygen supply port 5 of the lead screw 2 during lifting, lowering and radial sliding. When the telescopic rod 18 extends or retracts, the height of the gas-liquid mixing blade 8 exactly covers the area from the oxygen supply port 5 to the bottom of the lead screw 2, avoiding oxygen supply gaps caused by size mismatch. At the same time, it ensures that the gas-liquid mixing blade 8 is subjected to uniform force during dynamic adjustment, reduces mechanical wear, extends the service life of the equipment, and ensures stable output of oxygen supply and stirring functions.

[0022] The surface of the electric slide rail is covered with a high-temperature resistant protective sleeve, which fits tightly against the surface of the electric slide rail. This design is necessary because temperature fluctuations often occur during microbial culture, and the protective sleeve can isolate the high temperature from the internal circuitry of the slide rail, preventing slide rail failure due to excessive temperature. At the same time, the protective sleeve can resist the corrosion of metabolic products in the culture medium, prevent oxidation or scaling on the slide rail surface, ensure the smoothness and accuracy of the sliding of the telescopic rod 18, maintain the stability of the dynamic adjustment of the gas-liquid mixing blade 8, and ensure the accuracy of oxygen supply range control.

[0023] The driving section of the lead screw 2 is the cylindrical wall portion between the oxygen release port 4 and the oxygen supply port 5, and the collar 7 is adapted to be installed on the outside of the driving section of the lead screw 2. This structural design uses the cylindrical wall between the oxygen release port 4 and the oxygen supply port 5 as the driving section, so that the sliding range of the collar 7 accurately covers the oxygen supply area, ensuring that the gas-liquid mixing blade 8 moves efficiently within the critical oxygen supply range and avoiding ineffective stroke consumption. The clearance fit between the collar 7 and the driving section ensures both transmission flexibility and prevents the collar 7 from slipping through the structural limit, so that the oxygen release and stirring action are precisely synchronized, improving the synergistic efficiency of oxygen supply and mixing.

[0024] The inner wall of the metabolite discharge port 6 is provided with a groove 11, and an electric actuator 12 is fixedly installed at the top of the groove 11. The output end of the electric actuator 12 is fixedly connected to a connecting rod 15. The extension and retraction of the electric actuator 12 is directly transmitted to the airtight gate 13 through the connecting rod 15 to realize the electric opening and closing of the discharge port, replacing the traditional manual operation and reducing the interference of human intervention on the culture environment. The structure of the groove 11 provides guidance for the movement of the gate, ensuring the stability of the opening and closing process, avoiding leakage problems caused by gate deviation, and ensuring the safety and convenience of the discharge operation.

[0025] A micro motor 16 is fixedly installed inside the connecting rod 15. The output end of the micro motor 16 is connected to a rotating shaft 17, which is rotatably connected to the airtight gate 13. The micro motor 16 can drive the gate to rotate through the rotating shaft 17, thereby achieving precise control of the opening angle of the discharge port. This allows for the rapid discharge of large amounts of metabolic products, as well as the use of a small opening angle for micro-sampling or slow drainage, meeting the discharge requirements of different culture stages. At the same time, the rotation adjustment mechanism makes the gate and the discharge port fit more tightly, enhancing the sealing reliability.

[0026] Each of the outer peripheral walls of the airtight gate 13 is fixedly connected with a sealing gasket 14, which is in close contact with the inner wall of the metabolic product discharge port 6. The sealing gasket 14 can fill the gap between the gate and the discharge port, effectively preventing oxygen in the culture chamber from leaking through the discharge port and maintaining a stable oxygen concentration in the chamber. At the same time, the sealing gasket 14 can isolate external pollutants from entering the chamber, avoid contamination of the microbial culture environment, ensure the purity of the culture system, and improve the stability of microbial activity.

[0027] Work process:

[0028] After the system starts, motor 9 drives threaded rod 10 to rotate, which in turn drives screw 2 to move longitudinally within gas-liquid separation partition 3. Oxygen is introduced into the oxygen supply port 5 on screw 2, and oxygen is released into the culture reaction chamber 1 through oxygen release port 4. The collar 7 moves with screw 2, which drives gas-liquid mixing blade 8 to slide along dynamic guide rail 19 via telescopic rod 18, simultaneously realizing gas-liquid mixing and oxygen supply range adjustment, so that oxygen and culture medium are fully mixed.

[0029] When microbial metabolism produces products, the electric actuator 12 drives the connecting rod 15 to raise the airtight gate 13 along the slide 11. The micro motor 16 adjusts the gate's opening angle via the rotating shaft 17, and the metabolic products are discharged through the strip-shaped discharge port. After discharge, the airtight gate resets, and its outer sealing gasket ensures the airtightness of the chamber. Throughout the process, the protective sleeve of the dynamic guide rail 19 ensures the stable sliding of the telescopic rod 18, and the adaptive transmission between the lead screw 2 and the collar 7 maintains the synergistic efficiency of oxygen supply and stirring, realizing dynamic oxygen supply and environmental control for microbial culture.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A dynamic oxygen supply system based on microbial activity, comprising a culture reaction cabin (1), characterized in that: The dynamic oxygen supply system based on microbial activity comprises a culture reaction cabin (1) fixedly installed with a motor (9) at the top end, and a threaded rod (10) drivingly connected to the output end of the motor (9); the threaded rod (10) is sleeved with a lead screw (2) outside, and a gas-liquid separation partition plate (3) fixedly connected with the culture reaction cabin (1) is arranged between the threaded rod (10) and the lead screw (2), and the inner wall of the gas-liquid separation partition plate (3) is gap-fitted with the outer wall of the lead screw (2); the upper and lower sidewalls of the lead screw (2) are respectively provided with oxygen release openings (4) and oxygen supply openings (5), and the oxygen release openings (4) and the oxygen supply openings (5) are symmetrically distributed; the lead screw (2) is sleeved with a sleeve ring (7) outside, the sidewall of the sleeve ring (7) is fixedly connected with gas-liquid mixing wings (8) symmetrically, the bottom end of the gas-liquid mixing wings (8) abuts against the inner bottom wall of the culture reaction cabin (1); one end of the gas-liquid mixing wings (8) away from the sleeve ring (7) is fixedly connected with an extension rod (18), and a dynamic flow guide rail (19) is fixedly installed at the inner bottom of the culture reaction cabin (1), and the movable end of the extension rod (18) is slidingly connected with the electric slide rail (19); a strip-shaped metabolic product discharge port (6) is formed at the bottom end of the culture reaction cabin (1), and a gas-tight gate (13) is slidingly arranged in the metabolic product discharge port (6).

2. The dynamic oxygen supply system based on microbial activity of claim 1, wherein: The height dimension of the gas-liquid mixing wings (8) is equal to the vertical distance from the bottom end of the lead screw (2) to the top wall of the oxygen supply opening (5), and the height of the gas-liquid mixing wings (8) is the same as the single-section extension length of the extension rod (18).

3. The dynamic oxygen supply system based on microbial activity as claimed in claim 1, wherein: The surface of the electric slide rail (19) is covered with a high-temperature-resistant protective sleeve, and the protective sleeve is closely attached to the surface of the electric slide rail (19).

4. The dynamic oxygen supply system based on microbial activity as claimed in claim 1 wherein: The driving section of the lead screw (2) is the cylinder wall part between the oxygen release opening (4) and the oxygen supply opening (5), and the sleeve ring (7) is adaptively sleeved outside the driving section of the lead screw (2).

5. The dynamic oxygen supply system based on microbial activity as claimed in claim 1 wherein: A sliding groove (11) is formed in the inner sidewall of the metabolic product discharge port (6), an electric push rod (12) is fixedly installed at the inner top of the sliding groove (11), and the output end of the electric push rod (12) is fixedly connected with a connecting rod (15).

6. The dynamic oxygen supply system based on microbial activity as claimed in claim 5 wherein: A micro motor (16) is fixedly installed in the connecting rod (15), the output end of the micro motor (16) is drivingly connected with a rotating shaft (17), and the rotating shaft (17) is rotatably connected with the gas-tight gate (13).

7. The dynamic oxygen supply system based on microbial activity of claim 1, wherein: The outer peripheral sidewall of the gas-tight gate (13) is fixedly connected with a sealing gasket (14), and the sealing gasket (14) is closely abutted against the inner sidewall of the metabolic product discharge port (6).

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