Microbial feed fermentation apparatus

Abstract

The application discloses a microbial feed fermentation equipment and belongs to the technical field of feed processing. The equipment comprises a fermentation bin, a lifting and sliding assembly, a vibration and fluffing assembly, a bottom material gathering and turning assembly and a gas circulation and temperature adjusting assembly. The lifting and sliding assembly comprises a material guiding cylinder and a guiding seat, and a helical coil and a permanent magnet are cooperated to drive the guiding seat to move longitudinally. The vibration and fluffing assembly is arranged on the top of the bin, and a telescopic pipe, a connecting frame, a spring plate and a vibration frame are sequentially assembled, and airflow impact eccentric impellers are used to realize material vibration and fluffing. An arc-shaped collecting plate at the bottom of the bin can collect materials to turn up and down along the material guiding cylinder. A circulating pipeline is connected with the telescopic pipe and a gas outlet at the top of the bin, a pump body, a water cooling assembly and a heating assembly are arranged on the pipeline to realize closed loop temperature adjustment of the gas in the bin, and the gas circulation is linked with the material turning mechanism. The application can realize longitudinal material turning to eliminate stratification, airflow synchronous temperature adjustment and fluffing, uniform internal material temperature, stable closed anaerobic environment, adaptation to various feed fermentation, good fermentation effect and low energy consumption.

Description

Technical Field

[0001] This invention relates to the field of feed processing, specifically to a microbial feed fermentation device. Background Technology

[0002] Feed can produce some fungi, such as lactic acid bacteria, through solid-state anaerobic fermentation. During solid-state anaerobic fermentation, the feed needs to be properly stirred inside the fermentation equipment. At the same time, the internal temperature of the fermentation equipment is determined by real-time temperature monitoring and timely adjustments are made to ensure that the feed is always within a suitable temperature range. Based on the above, during the fermentation process, when feed is piled up inside the equipment for a long time, some of its internal components are prone to precipitation. For example, in the early stage of solid-state fermentation, a certain amount of fermentation liquid needs to be added to the material to maintain appropriate humidity. However, during long-term accumulation, the liquid components will also precipitate to a certain extent. In current technology, although the equipment is equipped with corresponding stirring devices, it can only achieve horizontal rotational stirring, making it difficult to create vertical up-and-down movement of the material. This makes it easy for the components of the material to separate under the long-term action of gravity. In addition, it is also easy to be compacted, making it difficult to fully guide the target temperature into the material through heat transfer alone when adjusting the temperature. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe 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 construed as limiting the scope of the invention.

[0004] To address the technical problems mentioned in the background section regarding the easy stratification of components due to stirring and inadequate temperature control, the present invention provides the following technical solution: This invention provides a microbial feed fermentation device, including a fermentation chamber, a lifting and sliding assembly, a vibrating and loosening assembly, a bottom material gathering and turning assembly, and a gas circulation and temperature control assembly. The lifting and sliding assembly is vertically installed inside the fermentation chamber and includes a guide cylinder and a guide seat. The guide seat is configured to move longitudinally under force on the guide cylinder. The vibrating and loosening assembly is installed on the top of the fermentation chamber and is fixedly connected to the guide seat. The vibrating and loosening assembly has an impeller inside that can be driven by airflow. The bottom material gathering and turning assembly is located at the bottom of the fermentation chamber and is arranged corresponding to the bottom end of the guide cylinder. The gas circulation and temperature control assembly has a circulation pipeline, with both ends of the circulation pipeline connected to the vibrating and loosening assembly and the top of the fermentation chamber, respectively. A pump and a heat exchange component are installed on the circulation pipeline.

[0005] According to one embodiment of the present invention, the lifting and sliding assembly further includes a spiral coil and a permanent magnet. The spiral coil is disposed inside the guide cylinder, and the permanent magnet is fixedly disposed on the guide seat. The magnetic fields of the spiral coil and the permanent magnet cooperate to drive the guide seat to move longitudinally along the guide cylinder.

[0006] According to one embodiment of the present invention, the vibrating fluffing assembly includes a telescopic tube, a connecting frame, a spring plate, and a vibrating frame; the telescopic tube is fixedly installed on the top of the fermentation chamber, the lower end of the telescopic tube is fixedly connected to the connecting frame, the connecting frame and the vibrating frame are assembled through the spring plate, and the impeller is rotatably installed inside the vibrating frame.

[0007] According to one embodiment of the present invention, the heat exchange component includes a water cooling component and a heating component, wherein the water cooling component and the heating component are independently arranged on the circulation pipeline.

[0008] According to one embodiment of the present invention, the telescopic tube and the connecting frame are both hollow structures; a first transition cavity is provided inside the guide seat, and a second transition cavity is provided inside the vibration frame to accommodate the impeller; a bellows is assembled between the first transition cavity and the second transition cavity, and the telescopic tube, the connecting frame, the first transition cavity, the bellows, and the second transition cavity are sequentially connected to form a complete and continuous airflow channel; an exhaust port is provided on the side wall of the second transition cavity.

[0009] According to one embodiment of the present invention, the impeller is a center-of-gravity offset structure, the impeller rotation axis is located at its own center position, and the impeller blades are arranged facing the air outlet side of the airflow channel.

[0010] According to one embodiment of the present invention, the vibrating frame is an overall hollow grid frame structure, and the grid frame is evenly provided with a plurality of material passage gaps, which pass through the upper and lower sides of the vibrating frame.

[0011] According to one embodiment of the present invention, the bottom material gathering and turning assembly includes multiple arc-shaped collecting plates and a synchronous drive mechanism; the multiple arc-shaped collecting plates are arranged in a ring array around the bottom of the fermentation chamber and around the guide cylinder, all of the arc-shaped collecting plates are connected to the synchronous drive mechanism, and each arc-shaped collecting plate is configured to rotate synchronously inward under the drive of the synchronous drive mechanism.

[0012] According to one embodiment of the present invention, the device is further provided with a linkage control unit; the linkage control unit is electrically connected to the pump body and the synchronous drive mechanism of the gas circulation temperature control component, and the linkage control unit is configured to synchronously control the start and stop operation of the pump body and the synchronous drive mechanism.

[0013] According to one embodiment of the present invention, the fermentation chamber wall is equipped with a heat insulation layer, and a temperature and humidity detection element is installed inside the fermentation chamber; the equipment is also equipped with a whole machine controller, and the temperature and humidity detection element, water cooling component, and heating component are all electrically connected to the whole machine controller.

[0014] The microbial feed fermentation equipment provided by this invention has the following beneficial effects: 1. This invention features an independent gas circulation pipeline, combined with water-cooling and heating components to achieve closed-loop gas circulation within the fermentation chamber. Hot and cold airflows can evenly penetrate into the material through the telescopic pipe and the exhaust port of the vibrating frame, solving the problem of large temperature differences inside the material caused by heat exchange only in the chamber wall in traditional equipment. This results in more uniform fermentation temperature control.

[0015] 2. The spiral coil, in conjunction with the permanent magnet, drives the guide seat to move up and down along the feed cylinder. Combined with the bottom arc-shaped collection plate, the material can be collected and lifted in the longitudinal direction throughout the process, which can break up the sediment and stratify the material, and prevent the fermentation liquid and feed components from stratifying and accumulating due to gravity.

[0016] 3. The circulating airflow drives the eccentric impeller to rotate and generate vibration, which in turn drives the vibrating frame to break up the clumps of material at high frequency, keeping the material in a loose and breathable state and ensuring the ventilation environment required for anaerobic fermentation. The vibration power is reused from the circulating temperature-regulating airflow, eliminating the need for an additional vibration motor, simplifying the overall structure and reducing energy consumption.

[0017] 4. The gas circulation and bottom turning mechanism are linked. The material is turned synchronously after each gas internal circulation, which opens up the gap between the materials and increases the penetration depth of hot and cold air, further optimizing the temperature regulation effect; the electromagnetic lifting structure can be adapted to feeds with different moisture content and particle size, and the equipment has strong versatility.

[0018] 5. The entire system is in a closed loop, with no outside air mixed in, which stably maintains the anaerobic fermentation environment for beneficial microorganisms such as lactic acid bacteria, improves the quality of fermentation products, and is equipped with temperature and humidity detection elements to realize automatic closed-loop temperature control without manual intervention, resulting in high fermentation consistency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a perspective view of an embodiment of the present invention.

[0020] Figure 2 For about Figure 1 Another perspective view of the structure shown.

[0021] Figure 3 for Figure 1 The internal cross-sectional view of the structure shown.

[0022] Figure 4 for Figure 3 A further cross-sectional view of the structure shown in the middle section.

[0023] Figure 5 This is a schematic diagram showing the separation between the vibration frame and the guide seat in an embodiment of the present invention.

[0024] Figure 6 For about Figure 5 Another perspective view of the structure shown.

[0025] Figure 7 This is a schematic diagram of the impeller installation in an embodiment of the present invention.

[0026] Figure 8 For about Figure 7 Top view of the structure shown.

[0027] Figure label: 1. Fermentation chamber; 2. Feed guide cylinder; 3. Collection plate; 4. Rotary seat; 5. Motor; 6. Traction seat; 7. Multi-section telescopic pipe; 8. Connecting frame; 9. Guide seat; 10. First transition chamber; 11. Second transition chamber; 12. Vibration frame; 13. Spring plate; 14. Corrugated pipe; 15. Impeller; 16. Exhaust port; 17. Baffle plate. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating 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 the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0032] Example: Referring to Figures 1 to 8, this invention provides a microbial feed fermentation device, which is composed of five main modules: a vertical fermentation chamber, a bottom material circulation and turning mechanism, a closed-loop gas temperature regulation circulation pipeline inside the chamber, a central material guiding sliding lifting component, and a pneumatic eccentric vibration fluffing mechanism. Each component is described step by step in the order of outside to inside, upstream to downstream, and from structure to linkage principle. The complete assembly, structural details, and linkage logic are as follows: I. Main body of the vertical sealed fermentation chamber (foundation load-bearing structure of the entire machine): Fermentation chamber 1 is a vertical, sealed cylindrical chamber. The side walls of the chamber are equipped with an insulation layer, a temperature sensor, and a humidity sensor. There are two structural openings on the top of the chamber, which are the feed inlet and the air outlet. A discharge valve is installed at the center of the bottom of the chamber. Inside the fermentation chamber 1, a guide cylinder 2 is vertically fixed in the center. The guide cylinder 2 is a hollow cylinder with both ends completely open. A spiral coil is pre-embedded in the inner wall of the guide cylinder 2 along its own axis. The spiral coil is connected to an independent frequency conversion electromagnetic controller. The frequency conversion electromagnetic controller can adjust the magnitude and direction of the current entering the spiral coil, thereby changing the strength and direction of the axial magnetic field generated after the spiral coil is energized, providing a magnetic field drive source for the subsequent lifting and lowering movement of the guide seat 9.

[0033] II. Bottom Material Circulation and Turning Mechanism (Bottom Material Gathering and Lifting Structure): The fermentation chamber 1 has multiple arc-shaped collection plates 3 mounted in a circular array on the outer side of the bottom of the bottom of the guide cylinder 2. All collection plates 3 are connected to the same rotating seat 4 at the bottom. The rotating seat is rotatably installed at the bottom of the chamber. A traction seat 6 is also rotatably installed outside the chamber. The traction seat 6 is magnetically coupled to the rotating seat 4 and is connected to a geared motor 5 arranged outside the chamber, so as to drive multiple collection plates 3 to rotate synchronously. The inner arc surface of each collection plate 3 faces the center of the fermentation chamber 1, and the outer arc fits against the inner wall of the chamber. When the geared motor 5 drives the rotating shaft, all the collection plates 3 synchronously retract and rotate inward. The feed material accumulated and settled at the bottom of the chamber is continuously gathered towards the center of the chamber by the arc-shaped plate surface. The material is automatically squeezed into the bottom of the guide cylinder 2 by the plate surface, climbs upward along the hollow channel of the guide cylinder 2, and finally falls back from the upper opening of the guide cylinder 2 to the upper area of ​​the fermentation chamber 1, completing the longitudinal circulation and turning of the material from the bottom to the top, solving the defects of traditional mixing equipment that only horizontally stirs and causes the material to settle in layers.

[0034] III. Closed-loop temperature control and circulation pipeline system for internal gas (airflow dynamics and heating / cooling control loop): This equipment is also equipped with a complete gas circulation pipeline (not shown in the attached diagram). The two ends of the circulation pipeline form a closed loop interface: one end is connected to the air inlet of the two telescopic pipes 7 at the top of the chamber, and the other end of the pipeline is connected to the air outlet opened at the top of the fermentation chamber 1, so that the internal space of the fermentation chamber 1, the circulation pipeline, and the internal channel of the telescopic pipe 7 are connected to form a complete closed gas internal circulation loop.

[0035] Along the gas flow direction of the circulation pipeline, three types of functional components are installed sequentially on the pipeline: Pump body (circulating air pump): provides directional pumping power for the entire airflow circuit, driving the continuous closed-loop circulation of gas in the chamber; Water-cooled components (shell and tube water-cooled heat exchange coils): External circulating cold water is introduced to cool and exchange heat with the gas flowing through the pipes in the chamber, absorbing the heat carried by the gas. Heating component (PTC constant temperature electric heating fin assembly): Starts up under low temperature conditions to heat the gas flowing through the pipeline.

[0036] Each water-cooling and heating component is equipped with an independent control switch. The overall controller receives real-time data from the temperature and humidity sensors on the chamber walls and automatically starts and stops the corresponding components individually: when the material temperature inside the chamber is higher than the suitable fermentation range, the heating component is turned off and the water-cooling component is turned on, with circulating airflow carrying cold energy into fermentation chamber 1; when the material temperature inside the chamber is lower than the required range, the water-cooling component is turned off and the heating component is turned on, with airflow carrying heat energy into fermentation chamber 1. The entire pipeline is completely sealed, preventing the intrusion of outside air. While maintaining the anaerobic fermentation environment, it relies on airflow to transport cold and heat, achieving uniform temperature regulation of the material throughout the chamber.

[0037] IV. Telescopic support tube and outer sliding lifting assembly of the guide cylinder: Expansion tube 7 Installation and airflow passage Two telescopic pipes 7 are vertically fixed inside the top of fermentation chamber 1. The telescopic pipes 7 are multi-stage telescopic sleeves, and the pipe ends of the telescopic pipes 7 are uniformly connected to the aforementioned gas circulation pipeline. The temperature-regulating circulating gas pumped by the circulation pump will be completely introduced into the hollow channel inside the telescopic pipes 7. The pipeline pump can synchronously control the airflow and velocity. Relying on the internal air pressure generated by the airflow, the telescopic pipes 7 can move up and down synchronously. A connecting frame 8 is rigidly fixed to the bottom of the telescopic pipes 7. The connecting frame 8 is a hollow square tube frame structure. The internal cavity is completely connected to the inner cavity of the telescopic pipes 7. The circulating airflow, which has been pre-temperature regulated by water cooling / heating, can be directly introduced into the inner cavity of the connecting frame 8 along the telescopic pipes 7.

[0038] Guide seat 9 assembly and permanent magnet characteristics disclosed. Two symmetrical guide grooves are opened along the axial direction on the outer wall of the guide cylinder 2. The guide seat 9 is slidably sleeved on the outer side of the guide cylinder 2. A limiting slider matching the guide groove is set on the inner side of the guide seat 9. The limiting slider is inserted into the groove, restricting the guide seat 9 to slide up and down along the axial direction of the guide cylinder 2 and preventing circumferential deflection. A permanent magnet is embedded in the side wall of the guide seat 9, so that the guide seat 9 itself has a stable permanent magnet force.

[0039] The electromagnetic lifting drive principle (the excitation of the guide cylinder 2 and the permanent magnet of the guide seat 9 have both been disclosed) When the spiral coil embedded in the wall of the guide cylinder 2 is energized, it will generate an axial alternating magnetic field. The permanent magnet embedded in the side wall of the guide seat 9 and the alternating magnetic field generated by the spiral coil will continuously generate magnetic attraction and magnetic repulsion. With the stepless adjustment of coil current and magnetic field strength by the frequency conversion electromagnetic controller, the guide seat 9 can reciprocate up and down along the outer wall of the guide cylinder 2. The lifting speed and lifting stroke can be freely adjusted according to the material working conditions. The guide seat 9 is rigidly welded to the side of the connecting frame 8 or is an integral structure. The telescopic movement of the telescopic tube 7 and the electromagnetic lifting movement of the guide seat 9 are synchronized and linked. Together, they drive the entire set of vibration frame 12 components below to move up and down synchronously along the guide cylinder 2.

[0040] Transition cavity and airflow communication structure The guide seat 9 has a sealed first transition cavity 10 inside, which is directly connected to the hollow inner cavity of the connecting frame 8. The guide seat 9 is provided with a vibration frame 12 below it, and the vibration frame 12 has a sealed second transition cavity 11 inside. A flexible bellows 14 is installed between the first transition cavity 10 and the second transition cavity 11 to ensure that the two cavities are connected to each other. The bellows 14 can adapt to the small displacement generated by the high-frequency (macro) vibration of the vibration frame 12, and ensure that the temperature regulation circulation airflow channel is leak-free throughout the process.

[0041] V. Spring damping connection and pneumatic eccentric vibration pleating mechanism (vibration generation logic explained step by step along the airflow direction): Flexible connection buffer structure Multiple sets of spring plates 13 are evenly distributed between the bottom surface of the connecting frame 8 and the top surface of the vibration frame 12. The two ends of the spring plates 13 are rigidly fixed to the connecting frame 8 and the vibration frame 12 by bolts. The spring plates 13 have the dual functions of elastic buffering and vibration transmission: the high-frequency vibration generated by the vibration frame 12 only acts locally on itself and will not be directly transmitted to the telescopic tube 7, guide seat 9 and other precision sliding structures, thus avoiding long-term vibration wear and jamming of the sliding pair.

[0042] Eccentric impeller 15 vibration generation structure An impeller 15 is rotatably mounted at the center of the second transition chamber 11. The impeller 15 adopts an eccentric counterweight design, with one side of the impeller 15 being thickened and weighted while the other side is lightweight, causing the overall center of gravity of the impeller 15 to shift. Several exhaust ports 16 are opened around the side wall of the second transition chamber 11. The exhaust ports 16 are directly connected to the material filling space inside the fermentation chamber 1. An elastic baffle 17 that can be blown open by the airflow is provided at the exhaust port 16 to ensure that the fermented material does not enter the exhaust port 16 in reverse.

[0043] Complete airflow path and vibration generation principle (airflow flows through the components from top to bottom, explained in sequence). The complete closed-loop flow path of the gas inside the chamber after being cooled / heated and regulated by the circulating pipeline is as follows: Fermentation Chamber 1: Top air outlet → Circulation pipeline pump body → Water-cooled component / heating component for gas temperature regulation → Root port of telescopic pipe 7 → Internal hollow channel of telescopic pipe 7 → Inner cavity of hollow connecting frame 8 → Guide seat 9 → Internal first transition cavity 10 → Corrugated pipe 14 → Vibration frame 12 → Internal second transition cavity 11 → Exhaust port 16 → Internal material area of ​​fermentation chamber 1. The gas eventually returns to the top air outlet, forming an uninterrupted closed internal circulation.

[0044] After the temperature-regulating airflow rushes into the second transition chamber 11 at high speed, it directly impacts the blades of the impeller 15, driving the impeller 15 to rotate continuously at high speed. During the high-speed rotation of the eccentrically counterweighted impeller 15, periodic eccentric excitation force is continuously generated. The excitation force is completely transmitted to the vibration frame 12 through the wall of the second transition chamber 11. Combined with the elastic rebound of the spring plate 13, the vibration frame 12 forms a high-frequency small-amplitude reciprocating vibration. The temperature-regulating airflow carrying cold and heat finally diffuses evenly from the exhaust port 16 and penetrates the feed material layer, simultaneously completing the material ventilation and the overall temperature balance regulation.

[0045] Vibration frame 12 lifting condition adaptation structure, The vibrating frame 12 is an overall hollow grid frame structure with a sufficiently large grid gap size. When the guide seat 9 drives the vibrating frame 12, which is in a vibrating state, to move upward along the guide cylinder 2, the material accumulated in the bin can freely pass through the grid gap under the vibration of the vibrating frame, and the material will not compress or obstruct the upward movement of the vibrating frame 12. When the vibrating frame 12 is in a downward phase, the controller reduces the airflow velocity in the pipeline, and the impeller 15 speed decreases synchronously, and the vibration of the vibrating frame 12 weakens or stops completely. In the static and vibration-free state, the grid of the vibrating frame 12 presses down on the upper loose material, pushing the material to the bottom area of ​​the bin, which facilitates the gathering and lifting of the bottom arc-shaped collection plate 3, and enhances the material turnover and circulation effect of the whole machine.

[0046] VI. Complete Workflow of the Equipment (arranged in the order of equipment startup, clearly defining the service relationship between material turning and gas circulation) Material feeding and sealing stage The microbial feed raw materials to be fermented and the fermentation liquid are put into fermentation chamber 1 through the feed inlet on the top of the chamber. The chamber door is closed to form a completely sealed anaerobic fermentation space. Temperature and humidity sensors on the chamber wall collect material and gas parameters in real time and transmit the data to the whole machine controller in real time.

[0047] Initiate gas internal circulation and simultaneously trigger material turning linkage. The controller starts the pump on the circulation pipeline to draw gas from the top outlet of the silo and send it into the circulation pipeline. Based on the material temperature fed back by the sensor in real time, the controller determines whether to start the water cooling component or the heating component separately, and sends the gas into the telescopic pipe 7 after completing the gas pre-temperature adjustment.

[0048] The equipment incorporates a built-in linkage control logic: Each time the gas inside fermentation chamber 1 completes a full closed-loop internal circulation, the bottom collection plate 3 simultaneously performs a round of material gathering and lifting action. The material rises from the bottom and falls back along the guide cylinder 2, achieving a complete up-and-down tumbling motion. This up-and-down tumbling mechanism is specifically designed to meet the gas circulation temperature regulation requirements: the tumbling process continuously breaks up clumps and compacts the material, opening up the internal air gaps and significantly increasing the penetration depth of the temperature-regulating airflow into the material, allowing both hot and cold airflows to fully penetrate the material and completely eliminating temperature dead zones within the material.

[0049] Aerodynamic vibration and fluffing occur simultaneously with uniform temperature distribution throughout the entire area. The temperature-regulating airflow is continuously transported along the loop and impacts the eccentric impeller 15, causing the vibrating frame 12 to vibrate at high frequency; the guide seat 9 is driven by the electromagnetic field to move up and down repeatedly, causing the vibrating frame 12 to sweep up and down along the entire area of ​​the feed guide cylinder 2, continuously dispersing the clumps of feed and forming loose and breathable pores inside the material; the circulating airflow carrying cold / heat is continuously dispersed into the pores of the material from the exhaust port 16, and the heat and cold are evenly distributed as the material is turned over, maintaining the overall temperature of the material stable within the suitable fermentation range for beneficial bacteria such as lactic acid bacteria throughout the process.

[0050] Electromagnetic lifting and zoning control of material air permeability An alternating current is passed through the spiral coil inside the feed cylinder 2, which generates periodic magnetic attraction and repulsion with the permanent magnet of the guide seat 9, driving the guide seat 9 to reciprocate up and down along the feed cylinder 2. When the vibrating frame 12 moves upward, the material passes through the grid without resistance, and the airflow can flow upward from the gaps between the materials to fully exchange the deep temperature of the material. When the vibrating frame 12 moves downward, the vibration intensity of the airflow is reduced or the vibration is stopped, and the grid presses down the material to collect it to the bottom of the bin. In conjunction with the collection plate 3, the material is continuously circulated and turned over, providing a sufficient ventilation channel for gas circulation.

[0051] Dynamic closed-loop automatic temperature adjustment If the sensor detects that the material temperature is higher than the preset fermentation range, the controller automatically switches the water cooling component and reduces the heating power. The low-temperature airflow continuously replaces the excess heat in fermentation chamber 1 through the circulation loop. If the material temperature is too low, the water cooling is turned off and the output power of the heating component is increased. The hot airflow penetrates the material to raise the overall temperature. The entire regulation relies on a closed internal circulation, with no outside air mixed in throughout the process, to stably maintain the anaerobic fermentation environment without damage.

[0052] Fermentation complete, unloading After the fermentation cycle is completed, the controller sequentially shuts down the circulating pump, water cooling / heating components, electromagnetic coil power supply, and bottom collection plate 3 drive motor, cutting off all power to the gas circulation and turning mechanism; and opens the bottom discharge valve to discharge the fermented microbial feed from the fermentation chamber 1.

[0053] VII. Selection and Parameter Optimization of Key Components (Optimal Implementation Parameters) The feed cylinder 2, guide seat 9, vibrating frame 12, collecting plate 3, and circulation pipeline are all made of 304 stainless steel, which is resistant to fermentation organic acid corrosion, and the surface is polished to reduce material adhesion. The telescopic pipe 7 is a three-stage pneumatic telescopic sleeve, with a maximum telescopic stroke matching the effective material height of fermentation chamber 1, and the air supply pressure of the circulation pipeline is 0.3~0.5MPa; The counterweight offset of the eccentric impeller 15 is 15% of the total mass of the impeller 15. The speed of the impeller 15 is 800~1200 r / min. The vibration frequency of the vibrating frame 12 is 50~100 Hz. The guide cylinder 2 has an external 0-24V frequency converter connected to the spiral coil, and the guide seat 9 has a lifting speed of 0.1-0.3m / min, which can be adjusted according to the dryness or wetness of the material. Spring plate 13 is made of 65Mn elastic steel plate, with a single group deformation of ±5mm, and 6 groups are evenly distributed to take into account both vibration transmission and shock absorption protection. There are 3 arc-shaped collecting plates. The single rotation angle is 45°. The synchronous circulation cycle matches the single complete internal circulation cycle of the gas. The single gas circulation takes 3 minutes and a round of material turning over is completed simultaneously. The circulation pipeline is equipped with a low-noise circulating air pump, and the water-cooling component adopts a shell-and-tube water-cooled heat exchange structure with a heat exchange area suitable for the internal volume of the fermentation chamber. The heating component is a PTC constant temperature electric heater with a temperature control range of 20-45℃, matching the suitable temperature for microbial fermentation. The outer wall of the pipeline is wrapped with heat insulation cotton to prevent heat loss during the transportation of temperature-regulating gas.

[0054] VIII. Advantages of this embodiment compared to existing equipment A closed gas circulation pipeline system is added, integrating water cooling and heating dual temperature control components to achieve closed-loop gas circulation in fermentation chamber 1. It relies on airflow to transport cold and heat, and completes full-area temperature control from inside the material, solving the problem of traditional equipment only exchanging heat on the outer wall and having a large temperature difference inside the material. The material turning mechanism is linked and matched with the gas internal circulation. Each gas circulation completes one round of material turning. The turning action is specifically designed to serve the airflow penetration needs. The shaking and loosening of the material forms a breathable channel, allowing hot and cold airflows to fully penetrate the material layer, significantly improving the uniformity of temperature regulation. The system employs a pneumatic eccentric vibration combined with an electromagnetic longitudinal lifting mechanism. The vibrating frame 12 sweeps the material up and down across the entire area, breaking up agglomerated materials in real time, maintaining the material in a loose and breathable state, and simultaneously assisting in the diffusion of circulating airflow to avoid compaction of wet materials in solid fermentation, local hypoxia, and local temperature abnormalities. The arc-shaped collection plate 3 at the bottom of the silo, together with the central guide cylinder 2, forms a complete material circulation channel between the upper and lower parts of the silo, breaking the limitation of traditional equipment that only stirs horizontally. The wet material at the bottom, which is rich in fermentation liquid, is continuously replaced upwards, completely eliminating the gravity stratification and component sedimentation of the material. The vibration power is directly reused in the fermentation chamber 1, which has a temperature-controlled circulating airflow. No additional vibration motor is required. One set of airflow can simultaneously achieve the three functions of temperature control, ventilation, and vibration fluffing, simplifying the overall structure and reducing equipment energy consumption. The electromagnetic lifting structure is infinitely adjustable to adapt to feed ingredients with different moisture contents and particle sizes; the entire process is a closed internal circulation system with no outside air entering, which stably maintains the anaerobic fermentation environment and improves the growth efficiency of beneficial bacteria such as lactic acid bacteria; the temperature is automatically controlled in a closed loop, requiring no manual intervention throughout the process, resulting in higher consistency in fermentation quality.

[0055] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A microbial feed fermentation device, characterized in that: Includes fermentation chamber, lifting and sliding assembly, vibration and fluffing assembly, bottom material gathering and turning assembly, and gas circulation and temperature control assembly; The lifting and sliding assembly is vertically installed inside the fermentation chamber. The lifting and sliding assembly includes a guide cylinder and a guide seat. The guide seat is configured to move longitudinally under force on the guide cylinder. The vibrating fluffing component is installed on the top of the fermentation chamber and is connected to the guide seat. The vibrating fluffing component is equipped with an impeller that can be driven by airflow, and the impeller vibrates in the airflow. The bottom material gathering and turning component is located at the bottom of the fermentation chamber, and the bottom material gathering and turning component is arranged at the bottom end of the guide cylinder. The gas circulation temperature control component is equipped with a circulation pipeline with a temperature regulating element. The two ends of the circulation pipeline are connected to the vibration fluffing component and the top of the fermentation chamber, respectively. The airflow returns to the fermentation chamber through the vibration fluffing component and passes through the impeller.

2. The microbial feed fermentation equipment according to claim 1, characterized in that: The lifting and sliding assembly also includes a spiral coil and a permanent magnet. The spiral coil is disposed inside the guide cylinder, and the permanent magnet is fixedly disposed on the guide seat. The magnetic fields of the spiral coil and the permanent magnet cooperate to drive the guide seat to move longitudinally along the guide cylinder.

3. The microbial feed fermentation equipment according to claim 1, characterized in that: The vibrating fluffing assembly includes a telescopic tube, a connecting frame, and a vibrating frame; the telescopic tube is fixedly installed on the top of the fermentation chamber, the lower end of the telescopic tube is fixedly connected to the connecting frame, the connecting frame and the vibrating frame maintain a limited movable connection, and the impeller is rotatably installed inside the vibrating frame.

4. The microbial feed fermentation equipment according to claim 1, characterized in that: The heat exchange component includes a water-cooling component and a heating component, which are independently installed on the circulation pipeline.

5. The microbial feed fermentation equipment according to claim 3, characterized in that: The telescopic tube and connecting frame are hollow inside; the guide seat has a first transition cavity inside, and the vibration frame has a second transition cavity to accommodate the impeller; the first transition cavity and the second transition cavity are connected by a corrugated pipe, and the telescopic tube, connecting frame, first transition cavity, corrugated pipe and second transition cavity are sequentially connected to form a complete and continuous airflow channel; the side wall of the second transition cavity has an exhaust port.

6. The microbial feed fermentation equipment according to claim 5, characterized in that: The impeller is a center-of-gravity offset structure, with the impeller's rotation axis located at its center and the impeller blades arranged facing the air outlet side of the airflow channel.

7. The microbial feed fermentation equipment according to claim 6, characterized in that: The vibrating frame is a hollow grid frame structure, with several material passage gaps evenly opened in the grid frame, and the material passage gaps run through the upper and lower sides of the vibrating frame.

8. The microbial feed fermentation equipment according to claim 1, characterized in that: The bottom material gathering and turning assembly includes multiple arc-shaped collecting plates and a synchronous drive mechanism; the multiple arc-shaped collecting plates are arranged in a ring array around the bottom of the fermentation chamber and around the guide cylinder. All the arc-shaped collecting plates are connected to the synchronous drive mechanism, and each arc-shaped collecting plate is configured to rotate synchronously inward under the drive of the synchronous drive mechanism.

9. The microbial feed fermentation equipment according to claim 1, characterized in that: The equipment is also equipped with a linkage control unit; the linkage control unit is electrically connected to the pump body and synchronous drive mechanism of the gas circulation temperature control component, and the linkage control unit is configured to synchronously control the start and stop operation of the pump body and synchronous drive mechanism.

10. The microbial feed fermentation equipment according to claim 1, characterized in that: The fermentation chamber walls are equipped with thermal insulation layers, and temperature and humidity detection elements are installed inside the fermentation chamber; the equipment is also equipped with a whole machine controller, and the temperature and humidity detection elements, water cooling components, and heating components are all electrically connected to the whole machine controller.

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