A preparation device for the fermentation of a synthetic microbial inoculant

Abstract

The present invention discloses a preparation device for the fermentation of a synthetic microbial inoculant, which relates to the field of microbial inoculant preparation. The device includes a device main body, a stirring assembly, and a temperature control mechanism. At least one fermentation tank is provided inside the device main body. The stirring assembly is detachably installed inside the device main body, and the temperature control mechanism is installed on the stirring assembly for controlling the temperature of the culture medium. The temperature control mechanism includes a refrigerant pipe and a heat medium pipe, and the refrigerant pipe and the heat medium pipe are installed in parallel. A refrigerant return pipe is installed inside the refrigerant pipe along the length direction, and a refrigerant cooling space is formed between the inner wall of the refrigerant pipe and the outer wall of the refrigerant return pipe. In the present invention, the stirring assembly is detachably installed inside the device main body. Therefore, when the structure of the stirring assembly is damaged, or when the inside of the fermentation tank needs to be cleaned, the entire stirring assembly can be removed from the inside of the fermentation tank. This not only facilitates the repair and replacement of the stirring assembly but also facilitates the cleaning of the inside of the fermentation tank.

Description

Technical Field

[0001] The invention relates to the field of microbial agent preparation, and in particular to a preparation device for synthetic microbial agent fermentation. Background Art

[0002] As is known, with the increasing popularity of ecological agriculture and sustainable development concepts, microbial agents have been widely used in agricultural production, soil improvement and plant growth promotion. Microbial agents are biological preparations composed of specific active microbial groups, which can promote growth, inhibit diseases, and improve soil fertility in soil or plants. Therefore, the development of efficient and stable microbial agent preparation technology has become an important part of agricultural biotechnology research. Microbial agents mainly include various microorganisms such as bacteria, fungi and actinomycetes. According to their different functions, they can be divided into various types such as nitrogen-fixing bacteria, phosphate-solubilizing bacteria, potassium-solubilizing bacteria, and probiotics. They significantly improve the yield and quality of crops in soil ecosystems by improving the structure of microbial communities, promoting nutrient release, and enhancing plant stress resistance.

[0003] For example, the authorization announcement number is CN108795707B, the authorization announcement date is 2024.01.30, and the name is a microbial fermentation device, including a tank body, a support leg is provided at the bottom of the tank body, a feed port is provided at the top of the tank body, a discharge port is provided at the lower half of the tank body, and an exhaust structure is provided at the top of the tank body; the exhaust structure includes an outer cylinder and an inner cylinder, the outer cylinder is connected to the top of the tank body, an opening is provided on the outer cylinder, and a baffle is rotatably provided at the opening; a first space is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the center lines of the inner cylinder and the outer cylinder coincide, the inner cylinder is connected to the top of the tank body and penetrates the tank body...;

[0004] As in the above application, in the prior art, the preparation devices for microbial agents are mostly traditional fermentation tanks. In order to improve the mixing of the culture medium and the microorganisms inside the tank body, a stirring structure is installed inside the tank body. However, the stirring structure is fixedly installed inside the tank body. Therefore, after long-term use, when the stirring structure is damaged or the inside of the tank body needs to be cleaned, the stirring structure cannot be removed, which greatly increases the difficulty of maintenance and cleaning. In addition, in existing fermentation tanks, the internal temperature is mostly controlled by a structure, that is, when a temperature sensor device inside the fermentation tank senses that the temperature before installation exceeds or is lower than the set threshold range, the internal temperature of the entire fermentation tank will be uniformly adjusted. The rate of this adjustment control is slow, and the temperature control of each position is inaccurate, which easily leads to the temperature imbalance of other positions after the temperature of the collection position is normal. Summary of the invention

[0005] (I) Purpose of the invention

[0006] In view of this, the purpose of the present invention is to provide a preparation device for the fermentation of a synthetic microbial inoculant. The stirring assembly in this device is detachably installed inside the device body. Therefore, when the stirring assembly is damaged in structure, or when the inside of the fermentation tank needs to be cleaned, the entire stirring assembly can be removed from the inside of the fermentation tank. This not only facilitates the repair and replacement of the stirring assembly, but also facilitates the cleaning of the inside of the fermentation tank.

[0007] (II) Technical Solution

[0008] To achieve the above technical objectives, the present invention provides a preparation device for the fermentation of a synthetic microbial inoculant, which includes a device body, a stirring assembly, and a temperature control mechanism. Among them, a top cover is installed above the device body. At least one fermentation tank is provided inside the device body. The stirring assembly is detachably installed inside the device body. The temperature control mechanism is installed on the stirring assembly for controlling the temperature of the culture medium. The temperature control mechanism includes a refrigerant pipe and a heat medium pipe. The refrigerant pipe and the heat medium pipe are installed in parallel. A refrigerant return pipe is installed inside the refrigerant pipe along the length direction. A refrigerant cooling space is formed between the inner wall of the refrigerant pipe and the outer wall of the refrigerant return pipe. Guide vanes are provided in the refrigerant cooling space.

[0009] As a further description of the above technical solution: In the temperature control mechanism, multiple groups of refrigerant pipes and heat medium pipes are arranged vertically from top to bottom in sequence. Each group has multiple pipes. The multiple refrigerant pipes and heat medium pipes in the same group are in the same plane and are distributed in a circular array. The refrigerant pipes and heat medium pipes in the same group are interconnected. One end of the refrigerant pipes in the same group is the refrigerant inlet. The refrigerant cooling space at the refrigerant inlet is separated from the refrigerant return pipe. The other end of the refrigerant pipes in the same group is the refrigerant return end. The refrigerant cooling space at the refrigerant return end is communicated with the refrigerant return pipe.

[0010] As a further description of the above technical solution: Guide vanes are provided in the refrigerant cooling space. The guide vanes adopt a spiral structure. Such a structural setting makes the flow path of the refrigerant extend under the guidance of the guide vanes when the refrigerant flows into the refrigerant cooling space, significantly improving its cooling effect. The refrigerant pipe is made of a heat-conducting material, and the refrigerant return pipe is made of a heat-insulating material. This can reduce the influence of the refrigerant in the refrigerant return pipe on the temperature of the refrigerant in the refrigerant cooling space and ensure the cooling control speed of the refrigerant in the refrigerant cooling space for the culture medium in the device.

[0011] As a further description of the above technical solution: Among the multiple groups of refrigerant pipes, the refrigerant pipes on the same vertical line are connected in series through refrigerant conduits. The structure of the refrigerant conduits is the same as that of the refrigerant pipes, both of which are double-pipe structures. An electromagnetic control valve is installed at the end of each group of refrigerant pipes. The electromagnetic control valve is used to control the on / off of each group of refrigerant conduits. Temperature sensors are installed at the same horizontal position of each group of refrigerant pipes on the inner wall of the fermentation chamber. The temperature sensors are used to collect the temperature of the culture medium. A controller is installed on the front surface of the device body.

[0012] As a further description of the above technical solution: The stirring assembly includes an upper bracket and a lower bracket. A rotating main shaft is rotatably installed between the upper bracket and the lower bracket. A plurality of stirring rods are equidistantly installed on the rotating main shaft in the vertical direction. The distance between adjacent two groups of stirring rods is greater than the distance between adjacent two groups of refrigerant pipes, so that both the refrigerant pipes and the heat medium pipes are located between adjacent two groups of stirring rods. A servo motor is installed at the top of the upper bracket. The output shaft of the servo motor is connected to the top of the rotating main shaft. A plurality of bushings are rotatably sleeved on the rotating main shaft. One end of the refrigerant pipe and the heat medium pipe is installed on the bushing.

[0013] As a further description of the above technical solution: The cross-section of the stirring rod adopts an inclined structure. Among them, the side of the stirring rod close to the rotation direction is the high-end side, and the other side is the low-end side. Such a structural setting makes it possible that when the stirring rod rotates and stirs, it will scrape the culture medium in the fermentation chamber to move upward and then fall, causing the culture medium to form a jittering action, thereby making the fusion of the culture medium higher.

[0014] As a further description of the above technical solution: Both the upper bracket and the lower bracket adopt a cross structure. The ends of the upper bracket and the lower bracket are fixedly connected through an assembly plug-in frame. Assembly slide rails adapted to the assembly plug-in frame are installed on the inner wall of the fermentation chamber in the vertical direction. The assembly plug-in frame is inserted into the assembly slide rail from top to bottom.

[0015] As a further description of the above technical solution: A waist groove is opened at the upper opening of the inner wall of the fermentation chamber. The waist groove is located at the top position of the assembly slide rail. A slot is opened at the side position of the waist groove. A clamping part and a plug part are welded on the outer side of the top of the assembly plug-in frame. Among them, the clamping part is lapped in the waist groove, and the plug part is inserted into the slot.

[0016] As a further description of the above technical solution: A lens for observing the interior of the fermentation chamber is installed on the front surface of the device body. A discharge hopper is installed below the front surface of the device body. The discharge hopper communicates with the bottom of the fermentation chamber and is internally provided with an electromagnetic control opening and closing valve. A ventilation device for ventilation is provided on one side of the device body. A feeding bin for feeding is installed on the back surface of the device body. A base is installed at the bottom of the device body.

[0017] As a further description of the above technical solution: A refrigerator is installed on the back surface of the device body through a bracket, and the refrigerant pipes are interconnected with the pipelines of the refrigerator.

[0018] In the above technical solution, a preparation device for the fermentation of a synthetic microbial inoculant provided by the present invention has a stirring assembly detachably installed inside the device body. Therefore, when the stirring assembly is damaged in structure, or when the interior of the fermentation chamber needs to be cleaned, the entire stirring assembly can be removed from the interior of the fermentation chamber. This not only facilitates the repair and replacement of the stirring assembly but also facilitates the cleaning of the interior of the fermentation chamber.

[0019] The pipeline structure for controlling the temperature inside the fermentation chamber in this device is installed on the stirring assembly. Therefore, when these pipeline structures are damaged, the stirring assembly can also be taken out for repair, which is convenient for operation. And through the structural design of the temperature control mechanism in this device, the device can locally control the temperature at different positions inside the fermentation chamber. This can not only ensure the uniformity of the temperature of the culture medium at each position in the fermentation chamber, making the fermentation speed of the culture medium at each position consistent, but also improve the temperature control rate of the culture medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of a preparation device for the fermentation of a synthetic microbial inoculant provided by the present invention;

[0022] Figure 2 It is a schematic diagram of the back structure of a preparation device for the fermentation of a synthetic microbial inoculant provided by the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the fermentation chamber in a preparation device for the fermentation of a synthetic microbial inoculant provided by the present invention;

[0024] Figure 4 Schematic structural diagram after the stirring device is removed from the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0025] Figure 5 Schematic structural diagram of the stirring device in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0026] Figure 6 Schematic structural diagram of another perspective of the stirring device in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0027] Figure 7 Schematic structural diagram of the refrigerant pipe in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0028] Figure 8 Schematic sectional view of the refrigerant pipe in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0029] Figure 9 Partial sectional view of the refrigerant pipe in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention;

[0030] Figure 10 Schematic diagram of the refrigerant flow path of the refrigerant pipe in the preparation device for fermenting a synthetic microbial inoculant provided by the present invention.

[0031] Description of the drawings: 1. Device main body; 2. Ventilation device; 3. Base; 4. Discharge hopper; 5. Controller; 6. Lens; 7. Feeding bin; 8. Top cover; 9. Bracket; 10. Refrigerator; 11. Fermentation chamber; 12. Stirring assembly; 1200. Plug-in; 1201. Clamping part; 1202. Servo motor; 1203. Suspension rod; 1204. Assembly mounting bracket; 1205. Bush; 1206. Temperature control mechanism; 12060. Assembly end; 12061. Refrigerant pipe; 12062. Heat medium pipe; 12063. Refrigerant conduit; 12064. Deflector; 12065. Refrigerant return pipe; 1207. Lower bracket; 1208. Upper bracket; 1209. Rotating main shaft; 1210. Stirring rod; 13. Assembly slide rail; 14. Waist slot; 15. Slot. Detailed implementation manners

[0032] The following description is merely exemplary in nature and is not intended to limit the present disclosure, its application, and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the embodiments of the present disclosure, and does not necessarily show the specific dimensions and their ratios of the embodiments of the present disclosure. Specific parts in a specific drawing may be exaggerated to illustrate relevant details or structures of the embodiments of the present disclosure.

[0033] Embodiment 1

[0034] Refer to Figures 1-6 : This embodiment provides a technical solution: a preparation device for fermenting a synthetic microbial inoculant, including a device main body 1, a stirring assembly 12, and a temperature control mechanism 1206. Among them, a top cover 8 is installed above the device main body 1, and at least one fermentation tank 11 is provided inside the device main body 1. The stirring assembly 12 is detachably installed inside the device main body 1. The temperature control mechanism 1206 is installed on the stirring assembly 12 and is used to control the temperature of the culture medium. The temperature control mechanism 1206 includes a refrigerant pipe 12061 and a heat medium pipe 12062. The refrigerant pipe 12061 and the heat medium pipe 12062 are installed in parallel. A refrigerant return pipe 12065 is installed inside the refrigerant pipe 12061 along the length direction. A refrigerant cooling space is formed between the inner wall of the refrigerant pipe 12061 and the outer wall of the refrigerant return pipe 12065. A flow guide piece 12064 is provided in the refrigerant cooling space.

[0035] By adopting the above technical solution:

[0036] The stirring assembly 12 in this device is detachably installed inside the device main body 1. Therefore, when the structure of the stirring assembly 12 is damaged, or when the inside of the fermentation tank 11 needs to be cleaned, the entire stirring assembly 12 can be removed from the inside of the fermentation tank 11. This can not only facilitate the repair and replacement of the stirring assembly 12, but also facilitate the cleaning of the inside of the fermentation tank 11.

[0037] Specifically, in the temperature control mechanism 1206, multiple groups of refrigerant pipes 12061 and heat medium pipes 12062 are arranged vertically from top to bottom. Each group has multiple pipes. The multiple refrigerant pipes 12061 and heat medium pipes 12062 in the same group are in the same plane and are distributed in a circular array. The refrigerant pipes 12061 and heat medium pipes 12062 in the same group are interconnected. One end of the refrigerant pipes 12061 in the same group is the refrigerant inlet, and the refrigerant cooling space at the refrigerant inlet is separated from the refrigerant return pipe 12065. The other end of the refrigerant pipes 12061 in the same group is the refrigerant return end, and the refrigerant cooling space at the refrigerant return end is connected to the refrigerant return pipe 12065. Such a structural setting enables the refrigerant to enter and exit the device through the same pipeline, reducing the complexity of the pipelines in the device, saving material costs, and reducing the impact on the internal space of the device.

[0038] Specifically, a flow guide vane 12064 is arranged in the refrigerant cooling space. The flow guide vane 12064 adopts a spiral structure. Such a structural setting makes the refrigerant flow path extend under the guidance of the flow guide vane 12064 when the refrigerant flows into the refrigerant cooling space, significantly improving the cooling effect. Specifically, the refrigerant pipes 12061 are made of heat-conducting materials, and the refrigerant return pipe 12065 is made of heat-insulating materials, which can reduce the influence of the refrigerant in the refrigerant return pipe 12065 on the temperature of the refrigerant in the refrigerant cooling space and ensure the cooling control speed of the refrigerant in the refrigerant cooling space for the culture medium in the device.

[0039] Specifically, the refrigerant pipes 12061 that are on the same vertical line among the multiple groups of refrigerant pipes 12061 are connected in series through refrigerant conduits 12063. The structure of the refrigerant conduits 12063 is the same as that of the refrigerant pipes 12061, both are double-pipe structures, and electromagnetic control valves are installed at the end positions of each group of refrigerant pipes 12061. The electromagnetic control valves are used to control the on / off of each group of refrigerant conduits 12063. Temperature sensors are installed at the same horizontal position of each group of refrigerant pipes 12061 on the inner wall of the fermentation chamber 11. The temperature sensors are used to collect the temperature of the culture medium. A controller 5 is installed on the front surface of the device main body 1. The controller 5 is electrically connected to the temperature sensors. When the temperature sensors sense that the temperature at the corresponding position in the fermentation chamber 11 is higher or lower than the threshold range, the controller 5 controls the refrigerant pipes 12061 or the heat medium pipes 12062 to cool or heat that position.

[0040] It should be noted that: this device can locally control the temperature of the culture medium inside the fermentation chamber 11, with better temperature control effect and faster temperature control rate, making the fermentation effect of the microbial inoculum better. It should be noted that: the heat medium pipe 12062 adopts a tubular structure made of heat-conducting materials and is provided with heating wires inside, so that the temperature of the heat medium pipe 12062 can be relatively mild when heating.

[0041] Embodiment 2

[0042] Reference Figures 1-10 , on the basis of Embodiment 1, this embodiment provides a technical solution: The stirring assembly 12 includes an upper bracket 1208 and a lower bracket 1207. A rotating main shaft 1209 is rotatably installed between the upper bracket 1208 and the lower bracket 1207. A plurality of stirring rods 1210 are equidistantly installed on the rotating main shaft 1209 in the vertical direction. The distance between adjacent two groups of stirring rods 1210 is greater than the distance between adjacent two groups of refrigerant pipes 12061, so that both the refrigerant pipe 12061 and the heat medium pipe 12062 are located between adjacent two groups of stirring rods 1210. A servo motor 1202 is installed at the top of the upper bracket 1208. The output shaft of the servo motor 1202 is connected to the top of the rotating main shaft 1209. A plurality of bushings 1205 are rotatably sleeved on the rotating main shaft 1209. One end of the refrigerant pipe 12061 and the heat medium pipe 12062 is installed on the bushing 1205.

[0043] It should be noted that: The distribution and installation of the refrigerant pipe 12061 and the heat medium pipe 12062 will not affect the stirring effect of the stirring rod 1210. When the servo motor 1202 operates, it drives the rotating main shaft 1209 to rotate, thereby causing the stirring rod 1210 to rotate and stir the culture medium in the fermentation tank 11. Further, a suspension rod 1203 is also installed on the upper bracket 1208 for assisting in the disassembly and assembly of the stirring assembly 12. Specifically, the inside of the bushing 1205 has channels respectively communicating with the refrigerant return pipe 12065 and the refrigerant cooling space.

[0044] Specifically, the cross-section of the stirring rod 1210 adopts an inclined structure. Among them, the side of the stirring rod 1210 close to the rotation direction is the high-end side, and the other side is the low-end side. Such a structural setting makes it so that when the stirring rod 1210 rotates and stirs, it will scrape the culture medium in the fermentation tank 11 to move upward and then fall, causing the culture medium to form a shaking action, thereby making the fusion of the culture medium higher.

[0045] Specifically, both the upper bracket 1208 and the lower bracket 1207 adopt a cross structure. The ends of the upper bracket 1208 and the lower bracket 1207 are fixedly connected through an assembly plug 1204. Assembly slide rails 13 adapted to the assembly plug 1204 are installed on the inner wall of the fermentation tank 11 in the vertical direction. The assembly plug 1204 is inserted into the assembly slide rail 13 from top to bottom. Such a structural setting enables the entire stirring assembly 12 to move upward and be directly taken out of the fermentation tank 11, and the overall operation is convenient and fast. The ends of the refrigerant pipe 12061 and the heat medium pipe 12062 are fixedly installed on the assembly plug 1204 through an assembly end 12060.

[0046] Specifically, a waist groove 14 is provided at the upper opening of the inner wall of the fermentation tank 11. The waist groove 14 is located at the top of the assembly slide rail 13. A slot 15 is provided at the side position of the waist groove 14. A clamping member 1201 and a plug member 1200 are welded to the outer side of the top of the assembly plug frame 1204. Among them, the clamping member 1201 is lapped in the waist groove 14, and the plug member 1200 is inserted into the slot 15. Such a structural setting makes the stability of the entire stirring assembly 12 higher through the clamping action of the clamping member 1201 and the plug member 1200 after the entire stirring assembly 12 is installed, and the noise generated by the servo motor 1202 during the stirring of the culture medium in the fermentation tank 11 can be reduced.

[0047] This embodiment provides a preparation device for the fermentation of synthetic microbial agents. Specifically, a top cover 8 is installed at the top of the device main body 1 at the fermentation tank 11. A lens 6 for observing the inside of the fermentation tank 11 is installed on the front surface of the device main body 1. A discharge hopper 4 is installed below the front surface of the device main body 1. The discharge hopper 4 is communicated with the bottom of the fermentation tank 11 and is internally provided with an electromagnetic control opening and closing valve. A ventilation device 2 for ventilation is provided on one side of the device main body 1. A feeding bin 7 for feeding is installed on the back surface of the device main body 1. A base 3 is installed at the bottom of the device main body 1.

[0048] Specifically, a refrigerator 10 is installed on the back surface of the device main body 1 through a bracket 9, and the refrigerant pipe 12061 is communicated with the pipeline of the refrigerator 10.

[0049] In the above text, the exemplary implementation manners of the solutions proposed in the present disclosure are described in detail with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed in the present disclosure can be made without exceeding the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Claims

1. A preparation device for synthetic microbial inoculant fermentation, characterized in that: It includes: A device body (1) having a top cover (8) mounted on top thereof, wherein at least one fermentation chamber (11) is provided inside the device body (1); A stirring assembly (12) is detachably mounted inside the device body (1), the stirring assembly (12) comprising an upper bracket (1208) and a lower bracket (1207), a rotating main shaft (1209) is rotatably mounted between the upper bracket (1208) and the lower bracket (1207), a plurality of stirring rods (1210) are equidistantly mounted on the rotating main shaft (1209) in a vertical direction, and the upper bracket (1208) and the lower bracket (1207) are The ends of the fermentation bin (11) are fixedly connected via an assembly bracket (1204); an assembly rail (13) adapted to the assembly bracket (1204) is installed on the inner wall of the fermentation bin (11) in the vertical direction; the assembly bracket (1204) is inserted into the assembly rail (13) from top to bottom, so that the entire stirring assembly (12) can be moved upward and directly taken out of the fermentation bin (11); a plurality of shaft sleeves (1205) are rotatably sleeved on the rotating main shaft (1209); A temperature control mechanism (1206), which is installed on the stirring assembly (12) and is used to control the temperature of the culture medium; The temperature control mechanism (1206) includes a refrigerant tube (12061) and a heat medium tube (12062), the refrigerant tube (12061) and the heat medium tube (12062) are installed in parallel, a refrigerant return tube (12065) is installed inside the refrigerant tube (12061) along the length direction, a refrigerant cooling space is formed between the inner wall of the refrigerant tube (12061) and the outer wall of the refrigerant return tube (12065), a guide plate (12064) is provided in the refrigerant cooling space, and the guide plate (12064) is spirally shaped. The temperature control mechanism (1206) includes a plurality of groups of refrigerant tubes (12061) and heat medium tubes (12062) arranged in sequence from top to bottom in the vertical direction, one end of each of the plurality of groups of refrigerant tubes (12061) and heat medium tubes (12062) being correspondingly mounted on each of the shaft sleeves (1205), and the refrigerant tubes (12061) in the plurality of groups of refrigerant tubes (12061) that are on the same vertical line are connected in series via a refrigerant conduit (12063), and an electromagnetic control valve is mounted at the end of each group of refrigerant tubes (12061).

2. The synthetic microbial inoculant fermentation preparation device according to claim 1, characterized in that: Each group of refrigerant pipes (12061) and heat medium pipes (12062) is provided with a plurality of them. The plurality of refrigerant pipes (12061) and heat medium pipes (12062) in the same group are located in the same plane and are distributed in a circular array. The refrigerant pipes (12061) and heat medium pipes (12062) in the same group are interconnected. One end of the refrigerant pipes (12061) in the same group is a refrigerant inlet, and the refrigerant cooling space at the refrigerant inlet is separated from the refrigerant return pipe (12065). The other end of the refrigerant pipes (12061) in the same group is a return medium end, and the refrigerant cooling space at the return medium end is connected to the refrigerant return pipe (12065).

3. A synthetic microbial inoculant fermentation preparation device according to claim 2, characterized in that: The structure of the refrigerant conduit (12063) is the same as that of the refrigerant tube (12061), both of which are double-tube structures. A temperature sensor is installed on the inner wall of the fermentation chamber (11) at the same horizontal position of each group of refrigerant tubes (12061). The temperature sensor is used to collect the temperature of the culture medium. A controller (5) is installed on the front surface of the device body (1).

4. A synthetic microbial inoculant fermentation preparation device according to claim 3, characterized in that: The spacing between two adjacent groups of stirring rods (1210) is greater than the spacing between two adjacent groups of refrigerant tubes (12061), so that the refrigerant tubes (12061) and the heat medium tubes (12062) are both located between the two adjacent groups of stirring rods (1210). A servo motor (1202) is installed on the top of the upper bracket (1208), and the output shaft of the servo motor (1202) is connected to the top of the rotating main shaft (1209).

5. The synthetic microbial inoculant fermentation preparation device according to claim 4, characterized in that: The cross-section of the stirring rod (1210) adopts an inclined structure, wherein the side of the stirring rod (1210) close to the rotation direction is the high end side, and the other side is the low end side. Such a structural arrangement allows the stirring rod (1210) to scrape the culture medium in the fermentation bin (11) when rotating and stirring, causing the culture medium to move upward and then fall down, thereby causing the culture medium to form a shaking motion, thereby making the culture medium more fusible.

6. The synthetic microbial inoculant fermentation preparation device according to claim 5, characterized in that: The upper bracket (1208) and the lower bracket (1207) both adopt a cross structure.

7. The synthetic microbial inoculant fermentation preparation device according to claim 5, characterized in that: A waist groove (14) is provided at the upper opening of the inner wall of the fermentation bin (11), the waist groove (14) is located at the top position of the assembly slide rail (13), a slot (15) is provided at the side position of the waist groove (14), and a clamp (1201) and a plug-in (1200) are welded to the outer side of the top of the assembly plug-in frame (1204), wherein the clamp (1201) is overlapped in the waist groove (14), and the plug-in (1200) is inserted in the slot (15).

8. The synthetic microbial inoculant fermentation preparation device according to claim 1, characterized in that: A lens (6) for observing the interior of a fermentation bin (11) is installed on the front surface of the device body (1); a discharge hopper (4) is installed below the front surface of the device body (1); the discharge hopper (4) is connected to the bottom of the fermentation bin (11) and is provided with an electromagnetically controlled opening and closing valve; a ventilation device (2) for ventilation is provided on one side of the device body (1); a feeding bin (7) for feeding is installed on the back of the device body (1); and a base (3) is installed at the bottom of the device body (1).

9. The synthetic microbial inoculant fermentation preparation device according to claim 8, characterized in that: A refrigerator (10) is installed on the back of the device body (1) via a bracket (9), and the refrigerant pipe (12061) and the pipeline of the refrigerator (10) are interconnected.

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