Fermentation apparatus and fermentation system

Abstract

This utility model relates to the field of bio-fertilizer technology, providing a fermentation device and system. The fermentation device includes a fermentation tank and an aeration assembly. The aeration assembly includes an air pump, multiple microporous aeration discs, a ring-shaped pipeline, and a gas flow meter. The air pump provides oxygen to the fermentation broth. Multiple microporous aeration discs are located inside the fermentation tank. The ring-shaped pipeline is located at the bottom of the fermentation tank and is connected to each microporous aeration disc and the air pump. The gas flow meter is located in the ring-shaped pipeline and is used to detect the oxygen flow rate within the pipeline. The fermentation device provided by this utility model, by integrating the gas flow meter into the ring-shaped pipeline, monitors and feeds back gas flow data in real time. This allows operators to precisely adjust the air pump output based on quantitative indicators, avoiding the oxygen supply fluctuations caused by traditional reliance on experience-based judgment. This significantly lowers the operational threshold and provides a technical foundation for standardized control in large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of bio-fertilizer technology, and in particular to a fermentation device and fermentation system. Background Technology

[0002] Microbial fertilizers, also known as inoculants, bio-fertilizers, or microbial fertilizers, are products containing specific living microorganisms. Applied to agricultural production, they produce a fertilizing effect through the life activities of these microorganisms. Currently, the common method for manufacturing liquid microbial fertilizers is to select specific microbial strains and place them in a fermentation tank for fermentation. During this process, an aeration device continuously supplies oxygen to the microorganisms. However, the current fermentation tank process largely relies on operator experience to control the gas flow, which places a high barrier to entry for operators, hindering standardization and large-scale production. This limits the manufacturing of microbial fertilizers. Utility Model Content

[0003] The first aspect of this utility model provides a fermentation device to address the shortcomings of existing fermentation tanks that rely on operator experience. By integrating a gas flow meter into a ring pipeline, the device monitors and feeds back gas flow data in real time, enabling operators to precisely adjust the gas pump output based on quantitative indicators. This avoids the fluctuations in oxygen supply caused by traditional reliance on experience-based judgment, significantly lowers the operational threshold, and provides a technical foundation for standardized control in large-scale production.

[0004] The second aspect of this utility model provides a fermentation system.

[0005] The fermentation equipment provided by this utility model includes:

[0006] Fermentation tank;

[0007] Aeration components, including:

[0008] An air pump is used to provide oxygen to the fermentation broth;

[0009] Multiple microporous aeration discs are disposed inside the fermentation tank;

[0010] An annular pipeline is located at the bottom of the fermenter, and the annular pipeline is connected to each of the microporous aeration discs and to the air pump.

[0011] A gas flow meter is installed in the annular pipeline, and the gas flow meter is used to detect the oxygen flow rate in the annular pipeline.

[0012] According to the fermentation equipment provided by this utility model, multiple microporous aeration discs are arranged in a stepped manner along the height direction of the fermentation tank.

[0013] According to the fermentation equipment provided by this utility model, the number of gas flow meters is the same as the number of microporous aeration discs, and each gas flow meter is correspondingly installed at the connection between the microporous aeration disc and the annular pipeline.

[0014] The fermentation equipment provided by this utility model further includes a metering component, the metering component comprising:

[0015] A float is disposed inside the fermentation tank;

[0016] A liquid level rod is connected at one end to the float and at the other end to the outside of the fermentation tank. The position of the liquid level rod is used to indicate the liquid level height of the fermentation liquid inside the fermentation tank.

[0017] According to the fermentation equipment provided by this utility model, the metering component further includes a transparent graduated tube, which is disposed in the fermentation tank. The end of the liquid level rod away from the float is slidably disposed in the transparent graduated tube. The transparent graduated tube is provided with graduations along its length. The relative position of the liquid level rod and the graduations is used to characterize the liquid level height of the fermentation liquid inside the fermentation tank.

[0018] The fermentation equipment provided by this utility model further includes a temperature control component, the temperature control component comprising:

[0019] A heater is connected to the fermentation tank and is used to heat the fermentation liquid inside the fermentation tank.

[0020] A temperature detector is installed inside the fermentation tank, and the temperature detector is used to detect the temperature of the fermentation liquid inside the fermentation tank.

[0021] A digital display is electrically connected to the temperature detector, and the digital display is used to display the temperature detected by the temperature detector.

[0022] The fermentation equipment provided by this utility model also includes a circulation pipeline, which is sequentially connected to the liquid outlet of the fermentation tank, a circulation pump, a valve, the heater, and the liquid inlet of the fermentation tank. The circulation pump is used to drive the fermentation liquid to circulate itself.

[0023] The fermentation equipment provided by this utility model also includes a Venturi tube, which is located at the outlet of the circulation pipeline and is used to increase the flow rate of the fermentation liquid.

[0024] The fermentation system provided by this utility model includes:

[0025] A stirring device is used to mix and stir the fermentation raw materials and obtain the fermentation liquid;

[0026] The fermentation equipment described in any of the preceding claims is connected to the stirring device, and the fermentation equipment is used to ferment the fermentation broth.

[0027] According to the fermentation system provided by this utility model, the stirring device includes:

[0028] The outlet of the mixing tank is connected to the inlet of the fermentation tank.

[0029] A stirrer is provided inside the stirring tank, and the stirrer is used to stir the fermentation raw materials;

[0030] A filter screen is disposed inside the mixing tank and arranged around the agitator, and the filter screen is used to filter the fermentation broth.

[0031] The fermentation equipment provided by this invention achieves precise control and uniform distribution of gas supply within the fermenter by incorporating an aeration assembly including an air pump, multiple microporous aeration discs, a ring-shaped pipeline, and a gas flow meter. Specifically, the ring-shaped pipeline is arranged along the bottom of the fermenter and adapted to its shape, allowing the oxygen output from the air pump to be evenly dispersed into the fermentation broth through multiple parallel microporous aeration discs. This solves the problem of insufficient dissolved oxygen in certain areas caused by uneven gas distribution in traditional single aeration methods, thereby improving fermentation efficiency and microbial activity. Simultaneously, the gas flow meter is integrated into the ring-shaped pipeline, monitoring and feeding back gas flow data in real time. This allows operators to precisely adjust the air pump output based on quantifiable indicators, avoiding oxygen supply fluctuations caused by traditional reliance on experience-based judgment. This significantly lowers the operational threshold and provides a technical foundation for standardized control in large-scale production.

[0032] Compared to the instability caused by manual gas control in existing technologies, this invention combines structural optimization with automated monitoring to shift gas supply from subjective experience-based reliance to objective data-driven approaches. This not only improves aeration uniformity and fermentation process controllability but also reduces operational complexity by minimizing human intervention. It effectively overcomes the limitations of uneven aeration and manual reliance in existing technologies, providing reliable technical support for the large-scale and standardized production of microbial fertilizers. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the fermentation equipment provided in this embodiment of the present invention from a frontal view.

[0035] Figure 2 This is a top-view cross-sectional view of the fermentation equipment provided in this embodiment of the utility model.

[0036] Figure 3 This is a schematic diagram of the stirring device provided in an embodiment of the present invention.

[0037] Figure 4 This is a top-view cross-sectional view of the stirring device provided in this embodiment of the utility model.

[0038] Figure label:

[0039] 100: Fermentation equipment; 110: Fermentation tank; 120: Aeration assembly; 121: Air pump; 122: Microporous aeration disc; 123: Circular pipeline; 130: Metering assembly; 131: Float; 132: Liquid level rod; 133: Transparent graduated tube; 140: Heater; 141: Temperature control box; 150: Circulation pump; 160: Venturi tube; 200: Stirring device; 210: Stirring tank; 220: Agitator; 230: Filter screen. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0042] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Figure 1 This is a schematic diagram of the fermentation equipment provided in this embodiment of the present invention from a frontal view. Figure 2 This is a top-view cross-sectional view of the fermentation equipment provided in this embodiment of the utility model.

[0045] See Figure 1 and Figure 2 The first aspect of this utility model provides a fermentation device 100, which includes a fermentation tank 110 and an aeration assembly 120. The fermentation tank 110 can be supported by a frame. The interior of the fermentation tank 110 is hollow and can hold a certain amount of liquid. The fermentation tank 110 has a cover plate and a quick-install flange on its top. The cover plate is used to close the opening on the top of the fermentation tank 110. The fermentation tank 110 is provided with an outlet for releasing liquid and an inlet for entering liquid. The specific positions of the outlet and inlet can be adapted to actual needs.

[0046] The aeration assembly 120 includes an air pump 121, multiple microporous aeration discs 122, an annular pipe 123, and a gas flow meter. The air pump 121 is located on the outside of the fermentation tank 110, the multiple microporous aeration discs 122 are located inside the fermentation tank 110, and the annular pipe 123 is located at the bottom of the fermentation tank 110. The shape of the annular pipe 123 is adapted to the shape of the fermentation tank 110. The inlet of the annular pipe 123 is connected to the air pump 121, and the multiple microporous aeration discs 122 are respectively connected to the annular pipe 123, that is, the multiple microporous aeration discs 122 are connected in parallel. In use, the air pump 121 provides oxygen, which enters the interior of the fermentation tank 110 through the annular pipe 123 and the multiple microporous aeration discs 122, thereby aerating the fermentation liquid inside the fermentation tank 110.

[0047] A gas flow meter is installed in the annular pipe 123 to detect the oxygen flow rate within the annular pipe 123. It is understood that the fermentation equipment 100 provided in this embodiment of the invention achieves precise control and uniform distribution of gas supply within the fermentation tank 110 by setting up an aeration assembly 120 including an air pump 121, multiple microporous aeration discs 122, an annular pipe 123, and a gas flow meter. Specifically, the annular pipe 123 is arranged along the bottom of the fermentation tank 110 and adapted to the shape of the tank, allowing the oxygen output from the air pump 121 to be evenly dispersed into the fermentation liquid through the multiple parallel microporous aeration discs 122. This solves the problem of insufficient dissolved oxygen in certain areas caused by uneven gas distribution under traditional single aeration methods, thereby improving fermentation efficiency and microbial activity. Meanwhile, the gas flow meter is integrated into the ring pipeline 123 to monitor and provide feedback on gas flow data in real time. This allows operators to precisely adjust the output of the gas pump 121 based on quantitative indicators, avoiding fluctuations in oxygen supply caused by traditional reliance on experience-based judgment. This significantly lowers the operational threshold and provides a technical foundation for standardized control in large-scale production.

[0048] Compared to the instability caused by manual gas control in existing technologies, this invention combines structural optimization with automated monitoring to shift gas supply from subjective experience-based reliance to objective data-driven approaches. This not only improves aeration uniformity and fermentation process controllability but also reduces operational complexity by minimizing human intervention. It effectively overcomes the limitations of uneven aeration and manual reliance in existing technologies, providing reliable technical support for the large-scale and standardized production of microbial fertilizers.

[0049] Continue reading Figure 1 In an optional embodiment of this utility model, multiple microporous aeration discs 122 are arranged in a stepped manner along the height direction of the fermentation tank 110. The stepped arrangement can be unidirectional, such as floor steps; or it can be a symmetrical stepped arrangement in a pagoda shape, such as... Figure 1 As shown, the specific selection can be made adaptively according to the actual situation. It should be noted that the spacing between each layer of microporous aeration discs 122 needs to be set according to the actual aeration requirements and the type of fermentation liquid. This spacing can be obtained based on historical data or experimental measurements, and will not be elaborated on here.

[0050] It is understood that in the fermentation equipment 100 provided in this embodiment of the present invention, the distribution of gas in the fermentation liquid is further optimized by arranging multiple microporous aeration discs 122 in a stepped manner along the height direction of the fermentation tank 110. Specifically, the stepped arrangement allows oxygen to be released gradually from different height levels, avoiding the problem of insufficient dissolved oxygen at the bottom caused by the concentrated rise of gas due to buoyancy under the traditional single horizontal arrangement, thereby forming a more uniform dissolved oxygen gradient in the vertical direction. The pagoda-style symmetrical arrangement design, through the synergistic effect of multiple levels of aeration discs, can cover areas at different depths of the fermentation tank 110, enhancing the contact area and mixing efficiency between gas and fermentation liquid, and further reducing the impact of local dissolved oxygen differences on the activity of the microorganisms.

[0051] Meanwhile, the adjustable spacing of the steps allows the structure to adapt to the physical property requirements of different types of fermentation broths (such as differences in viscosity and density). By matching the optimal arrangement parameters through historical data or experiments, it maintains both aeration uniformity and process flexibility. Compared to the limitations of single aeration methods in existing technologies, this embodiment of the invention achieves three-dimensional spatial control of the aeration process through a stepped arrangement, solving the problem of fermentation efficiency fluctuations caused by uneven gas distribution in traditional equipment, and providing a more stable gas environment for the large-scale production of microbial fertilizers.

[0052] In an optional embodiment of this utility model, the number of gas flow meters is the same as the number of microporous aeration discs 122, and each gas flow meter is correspondingly set at the connection between each microporous aeration disc 122 and the annular pipe 123. It can be understood that in the fermentation equipment 100 provided by this utility model embodiment, by independently configuring a gas flow meter for each microporous aeration disc 122, the gas flow meter set at the connection between each microporous aeration disc 122 and the annular pipe 123 can independently feed back the gas flow data of the corresponding branch, so that the operator can grasp the actual gas supply status of each aeration disc in real time, thereby adjusting the output of the air pump 121 or adjusting the pipeline distribution in a targeted manner to ensure the gas supply balance among multiple aeration discs.

[0053] Compared to traditional solutions that use a single flow meter to monitor only the total flow, this embodiment of the invention effectively avoids uneven air supply to each aeration disc due to differences in pipeline resistance or local blockages through distributed monitoring, further improving the uniformity of gas distribution and dissolved oxygen stability in the fermentation broth. Furthermore, this configuration enhances the system's troubleshooting capabilities; when the flow rate of a particular aeration disc is abnormal, the problem node can be quickly located and maintenance implemented, reducing downtime.

[0054] Continue reading Figure 1In an optional embodiment of this utility model, a metering component 130 is also included. The metering component 130 includes a float 131 and a level rod 132. The float 131 is located inside the fermentation tank 110 and can be an existing float or other component. One end of the level rod 132 is connected to the float 131, and the other end extends to the outside of the fermentation tank 110. In use, the float can float up and down with the liquid level of the fermentation liquid inside the fermentation tank 110, thereby driving the level rod 132 to move up and down. The movement of the level rod 132 can indicate the liquid level height of the fermentation liquid inside the fermentation tank 110.

[0055] It is understood that the fermentation equipment 100 provided in this embodiment of the present invention achieves real-time visual monitoring of the liquid level in the fermentation tank 110 by setting a metering component 130 composed of a float 131 and a liquid level rod 132. Specifically, the float 131 moves synchronously with the liquid level, causing the liquid level rod 132 to move synchronously. The displacement of the exposed part of the liquid level rod 132 can directly reflect the change in the liquid level in the tank. Operators can intuitively grasp the liquid level information without relying on experience to estimate or frequently opening the lid to check, thereby accurately controlling the feeding, circulation or discharging operations, and thus avoiding problems such as overflow due to excessively high liquid level or uneven aeration due to excessively low liquid level.

[0056] Compared to the extensive management method of judging liquid level by human experience in the prior art, the embodiment of this utility model simplifies the liquid level monitoring process through a mechanical linkage structure. While reducing the complexity of operation, it improves the accuracy and stability of fermentation process control. It can be applied to fermentation broth environments with different viscosities or densities, providing a basic guarantee for the standardized production of microbial fertilizers.

[0057] Continue reading Figure 1 The metering component 130 provided in this embodiment of the present invention also includes a transparent graduated tube 133, which is disposed on the upper side of the fermentation tank 110. The end of the liquid level rod 132 away from the float 131 is slidably disposed in the transparent graduated tube 133. The transparent graduated tube 133 is provided with a scale along its own length. When the liquid level rod 132 moves up and down, the relative position of the liquid level rod 132 and the scale can characterize the liquid level height of the fermentation liquid inside the fermentation tank 110. In an optional embodiment of the present invention, a corresponding mark can also be set on the liquid level rod 132. By changing the position of the mark relative to the scale, more accurate monitoring can be achieved.

[0058] It is understood that in the fermentation equipment 100 provided in this embodiment of the present invention, the intuitiveness and accuracy of liquid level monitoring are further improved by adding a transparent graduated tube 133 with graduations outside the liquid level rod 132. Specifically, the sliding trajectory of the end of the liquid level rod 132 in the transparent graduated tube 133 corresponds to the graduation marks. The operator can directly quantify and read the liquid level height by the relative position change of the marks and the graduations, avoiding the reading errors caused by visual deviation or experience estimation in traditional mechanical liquid level gauges.

[0059] Compared to the crude method of judging liquid level by human experience in existing technologies, the collaborative design of the transparent graduated tube 133 and the marking transforms liquid level information into quantifiable objective data. This simplifies the monitoring process and improves control accuracy, making it suitable for fermentation processes with varying liquid level sensitivities. Furthermore, this structure achieves stable monitoring without relying on complex electronic sensors, reducing equipment costs and maintenance complexity, and providing a reliable guarantee for the continuous and standardized production of microbial fertilizers.

[0060] Referring again to 1, in an optional embodiment of this utility model, a temperature control component is further included. This component includes a heater 140, a temperature detector (not shown in the figure), and a digital display (not shown in the figure). The heater 140 is connected to the fermentation tank 110 and is used to heat the fermentation liquid inside the fermentation tank 110. The temperature can be manually controlled (0-80℃). The temperature detector is located inside the fermentation tank 110 and is used to detect the temperature of the fermentation liquid inside the fermentation tank 110. The digital display is electrically connected to the temperature detector and is used to display the temperature detected by the temperature detector. In an optional embodiment of this utility model, a temperature control box 141 can also be set to comprehensively control the heater 140, the temperature detector, and the digital display. Specifically, it can be configured according to actual needs and adaptability to existing technology.

[0061] It is understood that the fermentation equipment 100 provided in this embodiment of the present invention achieves real-time monitoring and precise control of the temperature inside the fermentation tank 110 by setting a temperature control component including a heater 140, a temperature detector, and a digital display. Specifically, the temperature detector directly detects the temperature of the fermentation broth and transmits it to the digital display. Operators can manually adjust the output of the heater 140 based on the quantitative data, avoiding the temperature control deviation caused by relying on experience to judge the temperature in the prior art, thereby ensuring that the fermentation process is always within a suitable temperature range and maintaining the activity and metabolic efficiency of the strain. Furthermore, the introduction of a temperature control box 141 to comprehensively control the heater 140, the temperature detector, and the digital display can form a closed-loop temperature control system, which improves temperature stability while reducing manual intervention and can be used for the fermentation needs of different temperature-sensitive strains.

[0062] Continue reading Figure 1 and Figure 2In an optional embodiment of this utility model, a circulation pipeline is also included. The circulation pipeline is sequentially connected to the liquid outlet of the fermentation tank 110, the circulation pump 150, the valve, the heater 140, and the liquid outlet of the fermentation tank 110. The circulation pump 150 can be a magnetically driven circulation pump, which is used to drive the fermentation liquid to circulate itself. The valve can be a ball valve or other existing technology.

[0063] It is understood that the fermentation equipment 100 provided in this embodiment of the present invention achieves self-circulation of the fermentation broth and coordinated temperature control by setting up a circulation pipeline including a circulation pump 150, valves, and a heater 140. Specifically, the circulation pump 150 drives the fermentation broth from the outlet through the circulation pipeline, through the heater 140, and back into the tank, so that the liquid in the tank is continuously heated and uniformly mixed during the circulation process, avoiding fluctuations in the metabolic efficiency of the strain caused by local temperature differences or uneven dissolved oxygen under traditional static fermentation.

[0064] Compared to the extensive mode of existing technologies that rely on manual experience to control temperature and mixing effects, this utility model improves fermentation efficiency and product consistency while maintaining the stability of strain activity through the closed-loop design of the circulation system, providing process assurance for the large-scale and standardized production of microbial fertilizers.

[0065] Continue reading Figure 1 In an optional embodiment of this utility model, a Venturi tube 160 is further included. The Venturi tube 160 is disposed at the outlet of the circulation pipeline. The Venturi tube 160 is used to accelerate the flow rate of the fermentation broth and to ensure that the fermentation broth is uniformly mixed according to the mixing channel. It can be understood that in the fermentation equipment 100 provided in this embodiment of the utility model, by adding a Venturi tube 160 at the outlet of the circulation pipeline, the Venturi tube 160 uses its tapered-expanding structure to accelerate the liquid flow rate and form a local negative pressure, which can promote the turbulence effect of the fermentation broth in the mixing channel, thereby breaking the liquid stratification or local concentration unevenness that may exist in the traditional laminar flow state, and realizing the rapid homogenization of the fermentation broth components.

[0066] Compared to existing technologies that rely on natural circulation or simple stirring for mixing, this invention enhances the self-mixing capability during liquid circulation without requiring additional energy consumption through the fluid dynamics design of the Venturi tube 160. This avoids the shear damage that mechanical stirring may cause to the microorganisms, while also improving dissolved oxygen efficiency and temperature distribution uniformity, providing a more stable fluid environment for microbial metabolism. As a result, it reduces energy consumption and process complexity while maintaining fermentation efficiency, meeting the actual needs of large-scale production of microbial fertilizers.

[0067] Figure 3 This is a schematic diagram of the structure of the stirring device provided in this embodiment of the utility model; Figure 4This is a top-view cross-sectional view of the stirring device provided in this embodiment of the utility model.

[0068] See Figure 3 and Figure 4 The second aspect of this utility model provides a fermentation system, which includes a stirring device 200 and a fermentation device 100 as described in any of the foregoing embodiments. The stirring device 200 is used to mix and stir the fermentation raw materials and obtain fermentation liquid. The fermentation device 100 is connected to the stirring device 200 and is used to ferment the fermentation liquid.

[0069] It is understood that the fermentation system provided in this embodiment of the present invention integrates the stirring device 200 with the aforementioned fermentation equipment 100 into a complete fermentation system, thereby achieving a streamlined and coordinated process for raw material pretreatment and fermentation. Specifically, after the stirring device 200 thoroughly mixes and stirs the raw materials to generate a homogeneous fermentation broth, it is directly transported to the fermentation equipment 100, which has aeration, temperature control, and circulation functions, thus avoiding the problem of decreased fermentation efficiency caused by uneven mixing of raw materials or contamination during transportation in traditional processes.

[0070] Compared with existing technologies, this utility model embodiment, through the integrated design of stirring and fermentation, ensures the quality of raw material pretreatment while giving full play to the advantages of gas regulation, temperature equalization and mixing enhancement of fermentation equipment 100, forming a complete closed-loop process from raw material processing to fermentation output. This reduces energy consumption and time costs in intermediate links, and improves the overall efficiency and product consistency of microbial fertilizer production, providing a system-level solution for large-scale and continuous production.

[0071] See Figure 3 and Figure 4 In an optional embodiment of this utility model, the stirring device 200 includes a stirring tank 210, a stirrer 220, and a filter screen 230. The outlet of the stirring tank 210 is connected to the liquid inlet of the fermentation tank 110. The specific structure of the stirring tank 210 can be found in the prior art. The stirrer 220 includes a fan blade and a motor. The motor drives the fan blade to rotate, thereby realizing the stirring treatment of the fermentation raw materials. The filter screen 230 is located inside the stirring tank 210 and surrounds the stirrer 220. In other words, the stirring space of the stirrer 220 is confined inside the filter screen 230. In use, the fermentation raw materials are first put into the filter screen 230, and the stirrer 220 is started. The stirrer 220 will fully mix the fermentation raw materials. The liquid in the mixture can leave from the outlet of the stirring tank 210 after being filtered by the filter screen 230 and enter the fermentation equipment 100.

[0072] It is understood that the fermentation system provided in this embodiment of the present invention can fully agitate the fermentation raw materials within the space defined by the stirrer 220 and the filter screen 230, so that the solid materials and liquid can be quickly mixed to form a homogeneous slurry. At the same time, the filter screen 230 intercepts undissolved lumps or impurities, thereby ensuring that the liquid entering the fermentation equipment 100 is pure and free of particle residue.

[0073] Compared to static and extensive processing methods, this embodiment of the invention, through the synergistic effect of dynamic stirring and real-time filtration, shortens the raw material mixing time and avoids the risks of impurities clogging pipelines or affecting the activity of microorganisms, which are present in traditional processes. Furthermore, the direct connection between the stirring tank 210 and the fermentation equipment 100 reduces intermediate transfer links, lowers the probability of contamination and energy consumption, and forms a continuous process from raw material pretreatment to fermentation, providing a technological guarantee for the efficient and stable production of microbial fertilizers.

[0074] It should be noted that the technical solutions in the various embodiments of this utility model can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this utility model.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fermentation apparatus, characterized in that, include: Fermentation tank (110); Aeration assembly (120) includes: An air pump (121) is used to provide oxygen to the fermentation broth; Multiple microporous aeration discs (122) are disposed inside the fermentation tank (110); An annular pipe (123) is provided at the bottom of the fermentation tank (110). The annular pipe (123) is connected to each of the microporous aeration discs (122) and to the air pump (121). A gas flow meter is installed in the annular pipe (123) and is used to detect the oxygen flow rate in the annular pipe (123).

2. The fermentation equipment according to claim 1, characterized in that, Multiple microporous aeration discs (122) are arranged in a stepped manner along the height direction of the fermentation tank (110).

3. The fermentation equipment according to claim 2, characterized in that, The number of gas flow meters is the same as the number of microporous aeration discs (122), and each gas flow meter is correspondingly installed at the connection between the microporous aeration disc (122) and the annular pipeline (123).

4. The fermentation equipment according to claim 1, characterized in that, It also includes a metering component (130), which comprises: A float (131) is disposed inside the fermentation tank (110); The liquid level rod (132) is connected at one end to the float (131) and extends to the outside of the fermentation tank (110). The position of the liquid level rod (132) is used to characterize the liquid level height of the fermentation liquid inside the fermentation tank (110).

5. The fermentation equipment according to claim 4, characterized in that, The metering component (130) also includes a transparent graduated tube (133), which is disposed in the fermentation tank (110). The end of the liquid level rod (132) away from the float (131) is slidably disposed in the transparent graduated tube (133). The transparent graduated tube (133) is provided with graduations along its length. The relative position of the liquid level rod (132) and the graduations is used to characterize the liquid level height of the fermentation liquid inside the fermentation tank (110).

6. The fermentation apparatus according to any one of claims 1 to 5, characterized in that, It also includes a temperature control component, which includes: A heater (140) is connected to the fermentation tank (110) and is used to heat the fermentation liquid in the fermentation tank (110); A temperature detector is installed inside the fermentation tank (110) and is used to detect the temperature of the fermentation liquid inside the fermentation tank (110). A digital display is electrically connected to the temperature detector, and the digital display is used to display the temperature detected by the temperature detector.

7. The fermentation equipment according to claim 6, characterized in that, It also includes a circulation pipeline, which is connected in sequence to the outlet of the fermentation tank (110), the circulation pump (150), the valve, the heater (140) and the inlet of the fermentation tank (110), and the circulation pump (150) is used to drive the fermentation liquid to circulate.

8. The fermentation equipment according to claim 7, characterized in that, It also includes a Venturi tube (160), which is located at the outlet of the circulation pipeline and is used to increase the flow rate of the fermentation broth.

9. A fermentation system, characterized in that, include: A stirring device (200) is used to mix and stir the fermentation raw materials and obtain the fermentation liquid; The fermentation device (100) according to any one of claims 1 to 8 is connected to the stirring device (200), and the fermentation device (100) is used to ferment the fermentation broth.

10. The fermentation system according to claim 9, characterized in that, The stirring device (200) includes: The outlet of the stirring tank (210) is connected to the liquid inlet of the fermentation tank (110); A stirrer (220) is disposed inside the mixing tank (210), and the stirrer (220) is used to stir the fermentation raw materials; A filter screen (230) is disposed inside the mixing tank (210) and surrounding the stirrer (220). The filter screen (230) is used to filter the fermentation broth.

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