Ventilated energy-saving aspergillus oryzae solid-state fermentation device

Abstract

The invention discloses a ventilated energy-saving aspergillus oryzae solid-state fermentation device, and relates to the field of aspergillus oryzae solid-state fermentation equipment.The ventilated energy-saving aspergillus oryzae solid-state fermentation device comprises a thick-layer koji-making pool, the thick-layer koji-making pool is of a multi-section structure, a moving mechanism and a lifting mechanism are arranged above the thick-layer koji-making pool, and the lifting mechanism is installed below the moving mechanism in a sliding mode; the bottom end of one side of the lifting mechanism is slidably connected with a ventilation mechanism. The thick-layer koji-making pool is arranged to be of a multi-section type structure, the ventilation mechanism capable of achieving multidirectional adjustment through the moving mechanism and the lifting mechanism is matched, fixed-point accurate ventilation can be achieved according to the fermentation stages and oxygen demand of materials in different sections of the thick-layer koji-making pool, indifference ventilation of the whole fermentation pool is avoided, and the fermentation efficiency is improved. Unnecessary energy consumption is greatly reduced, the air leakage rate can be effectively reduced, the ventilation efficiency is improved, the energy-saving effect is further enhanced, and the problems that an existing device is high in ventilation energy consumption and low in butt joint precision are solved.

Description

Technical Field

[0001] This invention relates to the field of solid-state fermentation equipment technology for Aspergillus oryzae, specifically to a ventilated and energy-saving solid-state fermentation device for Aspergillus oryzae. Background Technology

[0002] As a commonly used microbial strain in the food industry, Aspergillus oryzae is widely used in the production of fermented foods such as soy sauce, fermented bean curd, and fermented black beans. Its solid-state fermentation process has extremely high requirements for ventilation, air cleanliness, and uniformity of material turning.

[0003] For example, the "Aspergillus oryzae soy sauce Aspergillus temperature and oxygen control fermentation tank" with publication number CN218969233U includes a box body, an internal frame, an installation plate rotatably mounted on the inner wall of the frame, filter screens at both ends of the top outer wall of the installation plate, and an extrusion assembly at one end of the top outer wall of the box body. The extrusion assembly includes a support base welded to the top of the box body, an installation rod rotatably mounted on the top outer wall of the support base, a first electric telescopic rod mounted on the bottom outer wall of the installation rod, and a pressure plate connected to the end of the first electric telescopic rod.

[0004] However, most existing Aspergillus oryzae solid-state fermentation devices adopt an integrated ventilation structure, which means that the entire fermentation tank is continuously ventilated without differentiation. This makes it impossible to accurately adjust the ventilation volume according to the actual oxygen demand of materials in different fermentation stages or different areas, resulting in high energy consumption and low ventilation efficiency. At the same time, the ventilation channel filtration structure of existing devices is simple, and external impurities and bacteria can easily enter the fermentation tank, contaminating the fermentation materials and affecting the growth and metabolism of Aspergillus oryzae and the quality of the final fermentation product. This makes it difficult to meet the needs of large-scale and efficient Aspergillus oryzae solid-state fermentation production. Summary of the Invention

[0005] The purpose of this invention is to provide a ventilation-efficient solid-state fermentation device for Aspergillus oryzae to solve the problems of high ventilation energy consumption, poor filtration effect, and uneven material agitation mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ventilated and energy-saving solid fermentation device for Aspergillus oryzae, comprising a thick-layer fermentation tank, wherein the thick-layer fermentation tank is configured with a multi-section structure, a moving mechanism and a lifting mechanism slidably installed below the thick-layer fermentation tank are provided above the thick-layer fermentation tank, and a ventilation mechanism is slidably connected to the bottom end of one side of the lifting mechanism, wherein the ventilation mechanism is used to introduce air into the thick-layer fermentation tank. Each section of the thick-layer fermentation tank has through holes on both sides. There is a height difference between the through holes on the inner and outer sides of the thick-layer fermentation tank. An inclined pipe connects the two through holes. A filter element is installed inside the inclined pipe. Rectangular grooves are formed on both sides of the thick-layer fermentation tank and surround the edge of the through holes. Positioning holes are formed on both sides of the thick-layer fermentation tank and are located at the edge of the corner of the rectangular groove. The ventilation mechanism includes a hollow box and a blower fixedly installed on one side of it. A filter plate is fixedly installed on the other side of the hollow box, and the filter plate is in contact with the thick-layer fermentation tank. A leak-proof baffle is fixedly installed on one side of the hollow box, and the shape of the leak-proof baffle is adapted to the rectangular groove. A docking rod is fixedly installed at the corner of one side of the hollow box, and the shape of the docking rod is adapted to the shape of the positioning hole. A universal wheel is rotatably installed at the bottom of the hollow box. The top of the hollow box is slidably connected to the lifting mechanism, and moves away from or towards the thick-layer fermentation tank along the horizontal direction of the lifting mechanism. The hollow box moves along the direction of the thick-layer fermentation tank and docks with the through holes at different positions.

[0007] Preferably, the lifting mechanism includes a vertical rod, an anti-detachment plate fixedly installed on its top, and a rectangular frame located on one side of it. The vertical rod is located on one side of the rectangular frame, and a connecting block is fixedly installed on the top of the rectangular frame. The connecting block is engaged between two anti-detachment plates. The anti-detachment plates are slidably connected to the moving mechanism, and the bottom of the vertical rod is slidably connected to the hollow box.

[0008] Preferably, a guide rod is fixedly installed on one side of the top of the rectangular frame. The guide rod passes through the vertical rod and is slidably connected to the vertical rod. A first lead screw drive assembly is installed inside the rectangular frame. A crossbar is threaded onto the outer wall of the lead screw of the first lead screw drive assembly. A vertical plate is fixedly installed at the end of the crossbar. The vertical plate is located on the other side of the rectangular frame.

[0009] Preferably, the moving mechanism includes a gantry frame and a reduction motor fixedly installed on one side of the bottom. The top of the gantry frame is provided with an I-shaped groove, and a tooth is fixedly installed on one side of the inner wall of the I-shaped groove. A servo motor is fixedly installed on the top of the connecting block. The gear at the output end of the servo motor meshes with the tooth, and the connecting block is slidably connected inside the I-shaped groove.

[0010] Preferably, a drive wheel is rotatably mounted on the inner side of the bottom end of the gantry frame, and a support wheel is rotatably mounted on the bottom of the gantry frame. The drive wheel and the reduction motor, as well as the support wheel and the drive wheel, are all connected by chain transmission. The reduction motor transmits power to the drive wheel through the chain, driving the entire gantry frame to move along the width direction of the thick fermentation tank.

[0011] Preferably, two parallel first guide rails are fixedly installed at both ends of one side of the vertical plate, and two parallel second guide rails are fixedly installed in the middle section of one side of the vertical plate. The first guide rails are perpendicular to the second guide rails, and the first guide rails are set to a vertical state. A limit plate is fixedly installed at the bottom of the second guide rails.

[0012] Preferably, a movable plate is slidably connected to one side of the vertical plate via a first guide rail, and a movable rod is slidably connected to one side of the vertical plate via a second guide rail. The movable rod is located between the movable plate and the vertical plate, and a transmission block is fixedly installed on one side of the movable rod. The transmission block is slidably connected to the movable plate.

[0013] Preferably, a strip-shaped hole is provided at the junction of the movable plate and the transmission block, and multiple strip-shaped holes are arranged radially. A second lead screw transmission assembly is fixedly installed at one end of the vertical plate. The slider on the outer wall of the lead screw of the second lead screw transmission assembly is fixedly connected to the movable plate. A turning rod is fixedly installed at the bottom of the movable rod. The turning rod is set inside the thick-layer fermentation tank for turning the material.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by setting the thick-layer fermentation tank as a multi-segment structure and cooperating with a ventilation mechanism that can be adjusted in multiple directions through a moving mechanism and a lifting mechanism, the connection between the ventilation mechanism and the corresponding through holes can be precisely controlled according to the fermentation stage and oxygen demand of the materials in different segments of the thick-layer fermentation tank. This achieves precise ventilation at fixed points, avoids indiscriminate ventilation of the entire fermentation tank, and significantly reduces unnecessary energy consumption. At the same time, the sealing cooperation between the anti-leakage baffle in the ventilation mechanism and the rectangular groove of the thick-layer fermentation tank, as well as the precise positioning of the docking rod and the positioning hole, effectively reduces the air leakage rate, improves ventilation efficiency, and further enhances the energy-saving effect, solving the problems of high ventilation energy consumption and low docking accuracy of existing devices.

[0015] 2. In this invention, a filter element is installed inside the inclined tube of the thick-layer koji-making tank, and a filter plate is fixed on one side of the hollow box of the ventilation mechanism, forming a double air filtration structure. After the outside air is initially filtered by the filter plate, it is then filtered a second time by the filter element inside the inclined tube. This can significantly improve the cleanliness of the air entering the thick-layer koji-making tank, effectively blocking external impurities and bacteria from entering the fermentation area, ensuring the stability of the Aspergillus oryzae fermentation environment, avoiding fermentation failure or product quality decline caused by bacterial contamination, and solving the defect of poor ventilation and filtration effect in existing devices.

[0016] 3. In this invention, a movable plate, movable rod, and turning rod structure driven by a second screw transmission assembly are provided on the vertical plate of the lifting mechanism. The movable plate is driven to slide along the first guide rail by the second screw transmission assembly. The radial strip holes on the movable plate guide the transmission block, pushing the movable rod to move along the second guide rail, thereby driving the turning rod to move flexibly in the horizontal direction. At the same time, in conjunction with the lifting mechanism to adjust the height of the turning rod, the material in the thick fermentation tank can be evenly turned in multiple directions and all directions, effectively breaking up the material clumping phenomenon, ensuring that the material is in full contact with the air, avoiding local hypoxia or heat accumulation, improving the uniformity and efficiency of Aspergillus oryzae fermentation, and solving the problem of uneven material turning in existing devices. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a ventilated and energy-saving Aspergillus oryzae solid-state fermentation device according to the present invention; Figure 2 This is a front view of the thick-layer koji-making tank, lifting mechanism, and ventilation mechanism of a ventilated and energy-saving Aspergillus oryzae solid-state fermentation device according to the present invention; Figure 3 This is a side view of the lifting mechanism and ventilation mechanism of a ventilated and energy-saving Aspergillus oryzae solid-state fermentation device according to the present invention; Figure 4 This is a schematic diagram showing the location and structure of the lifting mechanism and thick-layer fermentation tank of a ventilated and energy-saving Aspergillus oryzae solid-state fermentation device according to the present invention. Figure 5 This is a schematic diagram of the internal half-section structure of the thick-layer koji-making tank of a ventilated and energy-saving Aspergillus oryzae solid-state fermentation device of the present invention; Figure 6 This is a schematic diagram showing the connection and structure of the moving mechanism, lifting mechanism and ventilation mechanism of a ventilated and energy-saving Aspergillus oryzae solid fermentation device according to the present invention. Figure 7 This is a three-dimensional structural diagram of the lifting mechanism of a ventilated and energy-saving Aspergillus oryzae solid fermentation device according to the present invention; Figure 8 This is a schematic diagram of the vertical plate and movable plate structure of a ventilated and energy-saving Aspergillus oryzae solid fermentation device according to the present invention; Figure 9 This is a three-dimensional structural diagram of the first guide rail, the second guide rail, and the turning rod of a ventilated and energy-saving Aspergillus oryzae solid fermentation device of the present invention. Figure 10 This is a schematic diagram of the ventilation and material turning process of a ventilation-saving and energy-efficient Aspergillus oryzae solid fermentation device according to the present invention.

[0018] In the diagram: 1. Thick-layer fermentation tank; 2. Inclined pipe; 3. Moving mechanism; 4. Lifting mechanism; 5. Ventilation mechanism; 6. Through hole; 7. Positioning hole; 8. Rectangular groove; 31. Gantry frame; 32. Gear motor; 33. Transmission wheel; 34. Support wheel; 35. I-shaped groove; 36. Convex tooth; 41. Vertical rod; 42. Anti-detachment plate; 43. Rectangular frame; 44. Crossbar; 45. Vertical plate; 46. Guide rod; 47. First thread 48. Rod drive assembly; 49. Connecting block; 40. Servo motor; 410. Movable plate; 411. Limiting plate; 412. Tilting rod; 413. Second lead screw drive assembly; 414. Transmission block; 415. Strip hole; 416. Movable rod; 417. First guide rail; 418. Second guide rail; 51. Hollow box; 52. Air blower; 53. Casters; 54. Leakage baffle; 55. Connecting rod; 56. Filter plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown: A ventilated and energy-saving solid-state fermentation device for Aspergillus oryzae includes a thick-layer fermentation tank 1, which is configured as a multi-section structure. A moving mechanism 3 and a lifting mechanism 4 slidably mounted below the thick-layer fermentation tank 1 are arranged above it. A ventilation mechanism 5 is slidably connected to the bottom end of one side of the lifting mechanism 4, which is used to introduce air into the thick-layer fermentation tank 1. Through holes 6 are opened inside both sides of each section of the thick-layer fermentation tank 1. There is a height difference between the through holes 6 on the inner and outer sides of the thick-layer fermentation tank 1. An inclined pipe 2 connects the two through holes 6, and a filter element is installed inside the inclined pipe 2. Rectangular grooves 8 are opened on both sides of the thick-layer fermentation tank 1, surrounding the edges of the through holes 6. Positioning holes 7 are opened on both sides of the thick-layer fermentation tank 1, located within the rectangular grooves 8. At the corner edge, the ventilation mechanism 5 includes a hollow box 51 and a blower 52 fixedly installed on one side of it. A filter plate 56 is fixedly installed on the other side of the hollow box 51. The filter plate 56 fits into the thick-layer fermentation tank 1. A leak-proof baffle 54 is fixedly installed on one side of the hollow box 51. The shape of the leak-proof baffle 54 is adapted to the rectangular groove 8. A docking rod 55 is fixedly installed at the corner of one side of the hollow box 51. The shape of the docking rod 55 is adapted to the shape of the positioning hole 7. A universal wheel 53 is rotatably installed at the bottom of the hollow box 51. The top of the hollow box 51 is slidably connected to the lifting mechanism 4. It moves away from or towards the thick-layer fermentation tank 1 along the horizontal direction of the lifting mechanism 4. The hollow box 51 moves along the direction of the thick-layer fermentation tank 1 and docks with the through holes 6 at different positions.

[0021] In this embodiment, the thick-layer fermentation tank 1 is used as the core carrying space for Aspergillus oryzae solid-state fermentation. Its multi-segment structure can rationally divide the fermentation area, which is convenient for precise ventilation control for different fermentation stages or areas. The through holes 6 opened on both sides of each segment of the thick-layer fermentation tank 1 are the key channels for air entry and exit. There is a height difference between the inner and outer through holes 6. This height difference design, together with the inclined pipe 2 connecting the two, can effectively prevent material leakage from the tank. At the same time, the filter element installed inside the inclined pipe 2 can filter the passing air, preventing external impurities or harmful microorganisms from entering the thick-layer fermentation tank 1 and contaminating the fermentation material, thus ensuring a clean fermentation environment. The rectangular grooves 8 opened on both sides of the thick-layer fermentation tank 1 surround the edges of the through holes 6, and the positioning holes 7 are located at the corner edges of the rectangular grooves 8. Together, they provide a positioning and sealing basis for the precise docking of the ventilation mechanism 5 and the thick-layer fermentation tank 1.

[0022] During operation, the moving mechanism 3 drives the lifting mechanism 4, which is slidably installed below it, to move horizontally. The lifting mechanism 4 is used to turn over the materials at different positions in the pool and drives the ventilation mechanism 5 to move along the thick-layer fermentation pool 1 to provide targeted ventilation for the materials at different positions. Compared with traditional ventilation devices, this can reduce energy consumption. The hollow box 51 in the ventilation mechanism 5 is an air conveying chamber. After the blower 52, which is fixedly installed on one side of the hollow box 51, is started, it can draw outside air into the hollow box 51. Then the air passes through the air conveyor installed on the other side of the hollow box 51. After the filter plate 56 filters again, it is conveyed to the through hole 6 of the thick-layer fermentation tank 1. At this time, the anti-leakage baffle 54 fixedly installed on one side of the hollow box 51 is adapted to the shape of the rectangular groove 8 and can be embedded in the rectangular groove 8, effectively preventing air from leaking from the joint gap during the conveying process and ensuring ventilation efficiency. The docking rod 55 fixedly installed at the corner of one side of the hollow box 51 is adapted to the shape of the positioning hole 7. After being inserted into the positioning hole 7, the hollow box 51 and the thick-layer fermentation tank 1 can be accurately positioned, ensuring that the filter plate 56 and the through hole 6 are accurately aligned, allowing air to enter the thick-layer fermentation tank 1 efficiently and preventing misalignment.

[0023] Meanwhile, the universal wheels 53 rotatably mounted on the bottom of the hollow box 51 can reduce the frictional resistance of the hollow box 51 when it moves with the lifting mechanism 4 or along the direction of the thick-layer fermentation tank 1, so that the ventilation mechanism 5 can be more smoothly connected with the through holes 6 at different positions of the thick-layer fermentation tank 1. When ventilation is required for different sections of the thick-layer fermentation tank 1, the ventilation mechanism 5 is moved to the corresponding through hole 6 through the coordinated action of the moving mechanism 3 and the lifting mechanism 4, pushing the hollow box 51 to fit with the thick-layer fermentation tank 1 and repeating the above connection and air supply process, so as to achieve uniform ventilation of each fermentation area in the thick-layer fermentation tank 1, meet the oxygen demand of Aspergillus oryzae in the solid-state fermentation process, and when ventilation ends or ventilation area needs to be switched, the ventilation mechanism 5 can move away from the thick-layer fermentation tank 1 along the direction of the lifting mechanism 4, and then move along the direction of the thick-layer fermentation tank 1 to connect with the through holes 6 at other positions after adjusting the position by the lifting mechanism 4, so as to continuously provide stable ventilation for the fermentation process.

[0024] The multi-segment thick-layer fermentation tank 1, combined with the movable and adjustable ventilation mechanism 5, avoids indiscriminate ventilation of the entire thick-layer fermentation tank 1. It can precisely deliver air according to the actual oxygen demand of each fermentation material, reducing unnecessary energy consumption and achieving energy-saving effects. The filter element inside the inclined pipe 2 and the filter plate 56 in the ventilation mechanism 5 form a double filtration structure, which can significantly improve the cleanliness of the air entering the thick-layer fermentation tank 1, effectively ensuring the stability of the Aspergillus oryzae fermentation environment, reducing the risk of contamination by other microorganisms, and improving the quality of fermented products. The height difference between the inner and outer through holes 6 and the guiding effect of the inclined pipe 2 help the air to form a more reasonable flow path within the thick-layer fermentation tank 1. Combined with the power of the blower 52, this ensures that the air is evenly distributed in the thick-layer fermentation material, avoiding localized oxygen deficiency that could affect the growth and metabolism of Aspergillus oryzae. The sealing fit between the leak-proof baffle 54 and the rectangular groove 8 reduces air loss during ventilation, improves ventilation efficiency, reduces the operating load of the blower 52, and further enhances energy saving. The precise positioning of the connecting rod 55 and the positioning hole 7 allows for quick docking of the ventilation mechanism 5 and the through hole 6, reducing adjustment time and improving the ease of operation and stability of the device. The coordinated adjustment of the moving mechanism 3 and the lifting mechanism 4 enables the ventilation mechanism 5 to flexibly adapt to the different ventilation requirements of the multi-section structure of the thick-layer fermentation tank 1, enhancing the applicability and operational flexibility of the device. Through the synergistic effect of each component, the entire device significantly improves ventilation efficiency and energy saving performance while ensuring a suitable ventilation environment for Aspergillus oryzae solid-state fermentation, reducing fermentation production costs, and ensuring the stability of fermentation product quality.

[0025] Example 2: According to Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, the lifting mechanism 4 includes a vertical rod 41, an anti-detachment plate 42 fixedly installed on its top, and a rectangular frame 43 located on one side of it. The vertical rod 41 is located on one side of the rectangular frame 43. A connecting block 48 is fixedly installed on the top of the rectangular frame 43. The connecting block 48 is snapped between two anti-detachment plates 42. The anti-detachment plates 42 are slidably connected to the moving mechanism 3. The bottom of the vertical rod 41 is slidably connected to the hollow box 51. A guide rod 46 is fixedly installed on one side of the top of the rectangular frame 43. The guide rod 46 passes through the vertical rod 41 and is slidably connected to the vertical rod 41. A first lead screw transmission assembly 47 is installed inside the rectangular frame 43. A crossbar 44 is threadedly connected to the outer wall of the lead screw of the first lead screw transmission assembly 47. A vertical plate 45 is fixedly installed at the end of the crossbar 44. The vertical plate 45 is located on the other side of the rectangular frame 43.

[0026] In this embodiment, the rectangular frame 43 is the core support structure of the lifting mechanism 4. A connecting block 48 fixedly installed at its top is slidably installed in the moving mechanism 3, ensuring the overall structural stability during operation. A vertical rod 41 is located on one side of the rectangular frame 43, and an anti-detachment plate 42 fixedly installed at its top is slidably connected to the moving mechanism 3. Simultaneously, the bottom of the vertical rod 41 is slidably connected to the hollow box 51 of the ventilation mechanism 5, providing guidance and support for the movement of the hollow box 51. A guide rod 46 fixedly installed on one side of the top of the rectangular frame 43 passes through the vertical rod 41 and is slidably connected to it. The vertical rod 41 is used to determine the position of the hollow box 51, according to… Figure 3 As shown, when the moving mechanism 3 drives the entire lifting mechanism 4 to move to the right, the vertical rod 41 will not move synchronously, thus ensuring the stability of the hollow box 51. The first lead screw transmission assembly 47 installed inside the rectangular frame 43 is the core power for lifting adjustment. When the first lead screw transmission assembly 47 is started, its lead screw rotates. Due to the limiting effect of the rectangular frame 43, the crossbar 44, which is threaded to the outer wall of the lead screw, cannot rotate synchronously with the lead screw, and will move along the axial direction of the lead screw. The vertical plate 45, which is fixedly installed at the end of the crossbar 44, is located on the other side of the rectangular frame 43. When the crossbar 44 moves, it will drive the vertical plate 45 to move synchronously. Through the precise transmission of the first lead screw transmission assembly 47, the moving distance of the crossbar 44 and the vertical plate 45 can be precisely controlled to meet the material turning requirements of different depths in the thick-layer fermentation pool 1.

[0027] The connecting block 48 enhances the connection stability between the rectangular frames 43 through a snap-fit ​​method, ensuring that the overall structure of the lifting mechanism 4 is not prone to loosening during operation. The guide rod 46 provides precise guidance for the movement of the vertical rod 41, preventing the vertical rod 41 from deviating during sliding. It also ensures the synchronization between the ventilation mechanism 5 and the rectangular frame 43 when they move, which is beneficial for the precise docking of the ventilation mechanism 5 and the through hole 6 of the thick-layer fermentation tank 1. The transmission method of the first screw drive assembly 47 has the characteristics of high precision and strong stability, which can achieve precise control of the moving distance of the crossbar 44. Then, through the cooperation of the vertical plate 45, the precise adjustment of the turning depth can be achieved to meet different needs and improve the applicability of the device. The sliding connection between the vertical rod 41 and the hollow box 51 ensures that the ventilation mechanism 5 moves synchronously with the vertical rod 41.

[0028] Example 3: According to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the moving mechanism 3 includes a gantry frame 31 and a reduction motor 32 fixedly installed on one side of the bottom. The top of the gantry frame 31 is provided with an I-shaped groove 35. A tooth 36 is fixedly installed on one side of the inner wall of the I-shaped groove 35. A servo motor 49 is fixedly installed on the top of the connecting block 48. The gear at the output end of the servo motor 49 meshes with the tooth 36. The connecting block 48 is slidably connected inside the I-shaped groove 35. A transmission wheel 33 is rotatably installed on the inner side of the bottom end of the gantry frame 31. A support wheel 34 is rotatably installed on the bottom of the gantry frame 31. The transmission wheel 33 and the reduction motor 32, and the support wheel 34 and the transmission wheel 33 are all connected by chain transmission. The reduction motor 32 transmits power to the transmission wheel 33 through the chain, driving the entire gantry frame 31 to move along the width direction of the thick-layer fermentation tank 1.

[0029] In this embodiment, the gantry frame 31 serves as the main support structure of the moving mechanism 3, providing the installation and movement foundation for the entire mechanism and related components. The geared motor 32, fixedly installed on one side of its bottom, is the power source for the overall movement of the gantry frame 31. When the geared motor 32 starts, it transmits power to the transmission wheel 33 via a chain. Simultaneously, the transmission wheel 33 transmits power to the support wheel 34, which is rotatably mounted at the bottom of the gantry frame 31, causing the transmission wheel 33 and the support wheel 34 to rotate synchronously. This, in turn, drives the entire gantry frame 31 to move stably along the width of the thick-layer fermentation tank 1. The I-shaped groove 35 at the top of the gantry frame 31 provides a sliding track for the connecting block 48. The connecting block 48 is slidably connected inside the I-shaped groove 35, and the top of the connecting block 48... The gear at the output end of the servo motor 49, which is fixedly installed, meshes with the tooth 36, which is fixedly installed on one side of the inner wall of the I-shaped groove 35. When the servo motor 49 is started, the gear at its output end rotates. With the help of meshing with the tooth 36, a horizontal driving force is generated, which drives the connecting block 48 to slide along the length of the gantry 31 in the I-shaped groove 35. The connecting block 48 is fixedly connected to the rectangular frame 43 of the lifting mechanism 4. Therefore, the sliding of the connecting block 48 will synchronously drive the lifting mechanism 4 and the ventilation mechanism 5 below it to move along the direction of the gantry 31. With the movement of the gantry 31 itself along the width of the thick-layer fermentation tank 1, the ventilation mechanism 5 can be adjusted in multiple directions on the horizontal plane to accurately connect with the through holes 6 of different sections of the thick-layer fermentation tank 1.

[0030] The structural design of the I-shaped groove 35 can limit and guide the sliding of the connecting block 48, preventing the connecting block 48 from shifting or falling off during sliding, and can also enhance the stability of the connection between the connecting block 48 and the gantry 31. The meshing transmission method of the servo motor 49 and the tooth 36 has the characteristics of high transmission accuracy and fast response speed, which can accurately control the sliding distance and speed of the connecting block 48 in the I-shaped groove 35, thereby realizing the precise adjustment of the horizontal position of the lifting mechanism 4 and the ventilation mechanism 5, and meeting the precise docking requirements of the through holes 6 of different sections of the thick-layer fermentation pool 1.

[0031] Example 4: According to Figure 7 , Figure 8 and Figure 9As shown, two parallel first guide rails 417 are fixedly installed at both ends of one side of the vertical plate 45, and two parallel second guide rails 418 are fixedly installed in the middle section of one side of the vertical plate 45. The first guide rails 417 and the second guide rails 418 are perpendicular to each other, and the first guide rails 417 are set to a vertical state. A limit plate 411 is fixedly installed at the bottom of the second guide rails 418. A movable plate 410 is slidably connected to one side of the vertical plate 45 through the first guide rails 417, and a movable rod 416 is slidably connected to one side of the vertical plate 45 through the second guide rails 418. The movable rod 416 is located on the movable plate. Between 410 and vertical plate 45, a transmission block 414 is fixedly installed on one side of the movable rod 416. The transmission block 414 is slidably connected to the movable plate 410. A strip hole 415 is opened at the junction of the movable plate 410 and the transmission block 414. Multiple strip holes 415 are arranged radially. A second lead screw transmission assembly 413 is fixedly installed at one end of the vertical plate 45. The slider on the outer wall of the lead screw of the second lead screw transmission assembly 413 is fixedly connected to the movable plate 410. A turning rod 412 is fixedly installed at the bottom of the movable rod 416. The turning rod 412 is set inside the thick layer fermentation tank 1 for turning the material.

[0032] In this embodiment, the vertical plate 45 serves as the mounting base for the material-turning structure. Its height is controlled by the first lead screw transmission assembly 47. Two parallel first guide rails 417, fixedly installed at both ends on one side, provide vertical sliding support for the movable plate 410. Two parallel vertical second guide rails 418, fixedly installed in the middle section of one side, provide horizontal sliding guidance for the movable rod 416. A limiting plate 411 fixedly installed at the bottom of the first guide rail 417 determines the maximum descent height of the vertical plate 45, preventing the material-turning rod 412 from damaging the inner wall of the thick-layer fermentation tank 1. The movable rod 416 is slidably connected to the vertical plate 45 via the second guide rails 418 and is located between the movable plate 410 and the vertical plate 45. A transmission block 414 fixedly installed on one side of the movable rod 416 is slidably connected to the movable plate 410, and multiple radially arranged strip holes 41 are provided at the junction of the movable plate 410 and the transmission block 414. 5. The second lead screw transmission assembly 413, which is fixedly installed at one end of the vertical plate 45, is the power source of the material turning structure. When the second lead screw transmission assembly 413 is started, the slider on the outer wall of its lead screw will move along the lead screw axis. Since the slider is fixedly connected to the movable plate 410, the slider will drive the movable plate 410 to slide up and down along the first guide rail 417. When the movable plate 410 slides, it limits the transmission block 414 through the radial strip hole 415, pushing the transmission block 414 to slide along the strip hole 415. At the same time, the transmission block 414 drives the movable rod 416 to move horizontally along the second guide rail 418. The material turning rod 412, which is fixedly installed at the bottom of the movable rod 416, moves horizontally in sync, thereby adjusting the spacing of the material turning rod 412. The material turning rod 412 is set inside the thick-layer fermentation tank 1. Under the drive of the moving mechanism 3, it can realize the turning operation of the fermentation material in the thick-layer fermentation tank 1.

[0033] The turning rod 412 can break up material clumping by turning the material, allowing the material to fully contact with the air. Combined with the ventilation mechanism 5, it can improve oxygen utilization and promote the uniform growth of Aspergillus oryzae. At the same time, it can also dissipate the heat generated during fermentation evenly, avoiding excessive local temperature from affecting the fermentation quality. The overall structure, through the coordinated action of its components, achieves precise and stable turning of the material in the thick-layer fermentation tank 1, further optimizing the fermentation environment and improving the efficiency and product quality of Aspergillus oryzae solid-state fermentation.

[0034] The usage and working principle of this device: When using this ventilated and energy-saving Aspergillus oryzae solid-state fermentation device, firstly, the Aspergillus oryzae material to be fermented is placed into the multi-segment thick-layer fermentation tank 1. Then, the servo motor 49 is started, driving the connecting block 48 to slide along the length of the gantry 31 within the I-shaped groove 35. The connecting block 48 synchronously drives the rectangular frame 43 fixedly connected to it to move, so that the lifting mechanism 4 and the connected ventilation mechanism 5 initially approach the target segment of the thick-layer fermentation tank 1. Afterward, the first screw drive assembly 47 is started, driving the horizontal bar 44 and the vertical plate 45 to move along the screw axis. Adjust the height of the vertical plate 45 and the bottom tilting rod 412, then push the hollow box 51 to fit against the thick-layer fermentation tank 1, so that the filter plate 56 on one side of the hollow box 51 is aligned with the through hole 6 of the target section of the thick-layer fermentation tank 1. The anti-leakage baffle 54 is embedded in the rectangular grooves 8 on both sides of the thick-layer fermentation tank 1. Then start the air supply fan 52 to draw outside air into the hollow box 51. After the air is filtered by the filter plate 56, it enters the through hole 6 of the thick-layer fermentation tank 1, and then passes through the inclined pipe 2 between the inner and outer through holes 6 of the thick-layer fermentation tank 1 for further filtration before entering the thick-layer fermentation tank 1. To provide air for Aspergillus oryzae fermentation, during the aeration process, the second screw drive assembly 413 is activated. The slider drives the movable plate 410, which is fixedly connected to it, to slide along the two sets of first guide rails 417. When the movable plate 410 slides, it drives the movable rod 416 to slide along the second guide rail 418. The turning rod 412 moves synchronously with the movable rod 416. While adjusting the spacing of the turning rods 412, the material in the thick-layer fermentation tank 1 is turned over. During this process, the reduction motor 32 is activated, causing the entire gantry frame 31 to move along the direction of the thick-layer fermentation tank 1, thereby realizing the turning over of the material in the tank. After the complete turning of the material, once the ventilation and turning operations required for the fermentation of this section of material are completed, turn off the blower 52 and push the hollow box 51 away from the thick-layer fermentation tank 1, so that the anti-leakage baffle 54 is disengaged from the rectangular groove 8 and the docking rod 55 is disengaged from the positioning hole 7. Then, start the reduction motor 32, servo motor 49, and first lead screw transmission assembly 47 again to drive the moving mechanism 3 and lifting mechanism 4 to adjust their positions, so that the ventilation mechanism 5 moves to the next fermentation section of the thick-layer fermentation tank 1. Repeat the turning and ventilation operations in sequence according to the above steps until the material in all fermentation sections has completed the corresponding fermentation process.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ventilation energy-saving Aspergillus oryzae solid fermentation device, comprising a thick-layer koji-making tank (1), wherein the thick-layer koji-making tank (1) is arranged in a multi-section structure, and characterized in that: The upper part of the thick layer koji making tank (1) is provided with a moving mechanism (3) and a lifting mechanism (4) slidably installed below it, the bottom end of one side of the lifting mechanism (4) is slidably connected with a ventilation mechanism (5), the ventilation mechanism (5) is used for ventilating air into the thick layer koji making tank (1); The inside of each side of the thick layer koji making tank (1) is provided with a through hole (6), the through hole (6) on the inside of the thick layer koji making tank (1) is provided with a height difference with the through hole (6) on the outside, the two through holes (6) are communicated with an inclined pipe (2), the inside of the inclined pipe (2) is provided with a filter element, the two sides of the thick layer koji making tank (1) are provided with a rectangular groove (8), the rectangular groove (8) covers the edge of the through hole (6), the two sides of the thick layer koji making tank (1) are provided with a positioning hole (7), the positioning hole (7) is located at the edge of the corner of the rectangular groove (8). The ventilation mechanism (5) comprises a hollow box body (51) and a blowing fan (52) fixedly installed on one side of the hollow box body (51), the other side of the hollow box body (51) is fixedly provided with a filter plate (56), the filter plate (56) is attached to the thick layer koji making tank (1), the one side of the hollow box body (51) is fixedly provided with a leakage-proof baffle (54), the shape of the leakage-proof baffle (54) is matched with the shape of the rectangular groove (8), the corner of the one side of the hollow box body (51) is fixedly provided with a butt joint rod (55), the shape of the butt joint rod (55) is matched with the shape of the positioning hole (7), the bottom of the hollow box body (51) is rotatably provided with a universal wheel (53), the top of the hollow box body (51) is slidably connected with the lifting mechanism (4), and the hollow box body (51) moves away from or approaches the thick layer koji making tank (1) along the horizontal direction of the lifting mechanism (4), and the hollow box body (51) moves along the direction of the thick layer koji making tank (1) and is butt jointed with different positions of the through hole (6).

2. The solid state fermentation device of Aspergillus oryzae according to claim 1, characterized in that: The lifting mechanism (4) comprises a vertical rod (41), a anti-off plate (42) fixedly installed on the top of the vertical rod (41) and a rectangular frame (43) located on one side of the vertical rod (41), the top of the rectangular frame (43) is fixedly provided with a link block (48), the link block (48) is clamped between the two anti-off plates (42), the anti-off plate (42) is slidably connected with the moving mechanism (3), and the bottom of the vertical rod (41) is slidably connected with the hollow box body (51).

3. The energy-saving solid-state fermentation device for Aspergillus oryzae according to claim 2, characterized in that: The one side of the top of the rectangular frame (43) is fixedly provided with a guide rod (46), the guide rod (46) penetrates through the vertical rod (41) and is slidably connected with the vertical rod (41), the inside of the rectangular frame (43) is provided with a first screw rod transmission assembly (47), the outer wall of the screw rod of the first screw rod transmission assembly (47) is threadedly connected with a cross rod (44), the end of the cross rod (44) is fixedly provided with a vertical plate (45), and the vertical plate (45) is located on the other side of the rectangular frame (43).

4. The energy-saving solid-state fermentation device for Aspergillus oryzae according to claim 2, characterized in that: The moving mechanism (3) comprises a portal frame (31) and a reduction motor (32) fixedly installed on one side of the bottom, a I-shaped groove (35) is formed in the top of the portal frame (31), a protruding tooth (36) is fixedly installed on one side of the inner wall of the I-shaped groove (35), a servo motor (49) is fixedly installed on the top of the connecting block (48), the gear of the output end of the servo motor (49) is engaged with the protruding tooth (36), and the connecting block (48) is slidingly connected in the I-shaped groove (35).

5. The energy efficient solid state fermentation device for Aspergillus oryzae according to claim 4, wherein: The inner side of the bottom end of the portal frame (31) is rotatably provided with a transmission wheel (33), the bottom of the portal frame (31) is rotatably provided with a supporting wheel (34), the transmission wheel (33) and the supporting wheel (34) are both driven by chains, and the reduction motor (32) drives the transmission wheel (33) through the chain to drive the whole portal frame (31) to move along the width direction of the thick-layer koji pool (1).

6. The energy efficient solid state fermentation device for Aspergillus oryzae according to claim 3, wherein: Two first guide rails (417) are fixedly installed on the both ends of one side of the vertical plate (45), two second guide rails (418) are fixedly installed on the middle section of one side of the vertical plate (45), the first guide rails (417) are perpendicular to the second guide rails (418), the first guide rails (417) are arranged in a vertical state, and the bottom of the second guide rails (418) is fixedly provided with a limiting plate (411).

7. The energy efficient solid state fermentation device for A. oryzae according to claim 6, wherein: The first guide rail (417) is slidingly connected with an activity plate (410) on one side of the vertical plate (45), the second guide rail (418) is slidingly connected with an activity rod (416) on one side of the vertical plate (45), the activity rod (416) is located between the activity plate (410) and the vertical plate (45), the side of the activity rod (416) is fixedly provided with a transmission block (414), and the transmission block (414) is slidingly connected with the activity plate (410).

8. The energy efficient solid state fermentation device for A. oryzae according to claim 7, wherein: A strip-shaped hole (415) is formed at the joint of the activity plate (410) and the transmission block (414), a plurality of strip-shaped holes (415) are arranged in a radial manner, one end of the vertical plate (45) is fixedly provided with a second screw rod transmission assembly (413), the sliding block on the outer wall of the screw rod of the second screw rod transmission assembly (413) is fixedly connected with the activity plate (410), the bottom of the activity rod (416) is fixedly provided with a material turning rod (412), and the material turning rod (412) is arranged on the inner side of the thick-layer koji pool (1) and used for turning animal material.

Images