Efficient mixed inoculation device for liquid fermentation of feed probiotics

Abstract

The utility model relates to the technical field of microbial fermentation engineering, and concretely is a kind of high-efficiency mixed inoculation device for liquid fermentation of feed probiotic bacteria, including fermenter, and the lower part side of fermenter is provided with discharge gate, and discharge gate is closed by detachable door panel, and hollow rotating disc is vertically connected and communicated on the upper end of the intermediate tube in the fermenter;The lower end of the intermediate tube penetrates out of the fermenter and is sealed at the penetration point, and the intermediate tube is vertically and communicated on water inlet pipe by sealing bearing, and water pump is communicated at the other end of the one end closed water inlet pipe, and water inlet pipe is driven to rotate along its axial line by driving mechanism.The use of the present application can spray the seed liquid more uniformly by using the rotating disc, and the use of the main shift rod can realize uniform mixing and avoid the existence of serious concentration gradient in the fermenter, to ensure the synchronous growth of bacteria.

Description

Technical Field

[0001] This invention belongs to the field of microbial fermentation engineering technology, specifically a high-efficiency mixing and inoculation device for liquid fermentation of feed probiotics. Background Technology

[0002] In the large-scale liquid fermentation production of probiotics for animal feed, inoculation is one of the key steps. Currently, the most common inoculation method is to pump the prepared liquid seed culture into a large fermentation tank through an inoculation pipeline, relying on pressure difference or directly.

[0003] With the development of modern fermentation technology, in order to improve fermentation efficiency and shorten the lag phase of the microbial culture, the amount of inoculated culture (i.e., seed culture) has been gradually increasing, reaching 5% to 15% or even higher of the total volume of the fermentation medium. However, when a large amount of seed culture is added, the large volume of high-concentration seed culture enters the fermenter instantly. Due to the difference in viscosity and density between the seed culture and the main fermentation medium, it tends to accumulate in large quantities near the feeding point, forming viscous "clumps." This results in a severe concentration gradient within the fermenter. The microorganisms in the high-concentration zone suffer from impaired activity due to nutrient competition and the accumulation of metabolic waste; while the medium in the low-concentration zone is not effectively utilized, leading to asynchronous microbial growth and a decrease in overall fermentation efficiency. Utility Model Content

[0004] This invention provides a high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed, in order to overcome the deficiencies in the prior art.

[0005] This utility model is achieved through the following technical solution: A high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed includes a fermentation tank. A discharge port is located on the lower side of the fermentation tank and is sealed by a detachable door panel. A central tube is vertically arranged inside the fermentation tank. The upper end of the central tube is vertically connected to and communicates with a hollow rotating disk. Several first nozzles are arranged around the rotating disk. A main lever is fixedly installed on the central tube. A feed hopper is located at the top of the fermentation tube and is sealed by a cover plate. The lower end of the central tube extends out of the fermentation tank and is sealed at the exit point. The central tube is vertically connected to a water inlet pipe via a sealed bearing. One end of the water inlet pipe is sealed, and the other end is connected to a water pump. The water inlet pipe is driven by a drive mechanism to rotate along its axis.

[0006] In use, the culture medium is placed into the fermentation tank using a hopper. The seed liquid is sprayed out through a water inlet pipe, an intermediate pipe, a rotating disc, and a nozzle. When the nozzle sprays, the water inlet pipe rotates under the drive mechanism, which in turn drives the rotating disc and the main lever to rotate. This not only achieves more uniform spraying, but also drives the main lever to move, making the mixing more uniform.

[0007] Preferably, the drive mechanism includes a drive motor fixedly mounted at the bottom of the fermenter, a driven gear fixedly sleeved on the intermediate tube, and a drive gear meshing with the driven gear fixedly sleeved on the shaft of the drive motor. The rotation of the drive motor shaft drives the drive gear to rotate, which in turn drives the driven gear to rotate, thereby realizing the rotation of the intermediate tube.

[0008] Preferably, the intermediate tube has branch tubes perpendicular to and connected to both sides. The outer ends of the branch tubes are bent upwards and closed. Several side levers are vertically connected to the vertical part of the branch tubes along their length, and the side levers are staggered from the main levers. The rotation of the intermediate tube can drive the rotation of the branch tubes, thereby ensuring more uniform mixing.

[0009] Preferably, the side lever is a tubular structure, with one end connected to the corresponding branch pipe and the other end closed. Several second nozzles are fixedly installed on the lever, so that the seed liquid can be sprayed out through the second nozzles during stirring, achieving more uniform mixing.

[0010] Preferably, the top surface of the rotating disk is provided with a top cap, which has a pointed structure that is narrow at the top and wide at the bottom, which can effectively prevent the culture medium from falling onto the rotating disk and affecting its use.

[0011] The beneficial effects of this utility model are as follows: the use of this application can make the seed liquid spray more evenly by using a rotating disc, and at the same time, the mixing can be achieved by using the main lever to stir, so as to avoid serious concentration gradients in the fermenter and ensure synchronous growth of the cells. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] As shown in the figure: 1. Fermentation tank, 2. Feed hopper, 3. Intermediate pipe, 4. Branch pipe, 5. Main lever, 6. Side lever, 7. Rotary disc, 8. Drive motor, 9. Drive gear, 10. Driven gear, 11. Water inlet pipe. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] A high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed, such as Figure 1 As shown. It includes a fermentation tank 1, with a discharge port on the lower side of the fermentation tank 1, which is closed by a detachable door panel. A central tube 3 is vertically installed inside the fermentation tank 1, with a hollow rotating disk 7 vertically connected to its upper end. Several first nozzles are arranged around the rotating disk 7. A main lever 5 is fixedly installed on the central tube 3. A feed hopper 2 is located at the top of the fermentation tube and is sealed by a cover plate. The lower end of the central tube 3 extends out of the fermentation tank 1 and is sealed at the exit point. The central tube 3 is vertically connected to a water inlet pipe 11 via a sealed bearing. Specifically, through holes are provided at the bottom of the fermentation tank 1 and on the water inlet pipe 11. The outer ring of the sealed bearing is fitted and fixedly connected to the inner wall of the through holes. The inner ring of the sealed bearing is fitted and fixedly sleeved with the central tube 3. One end of the water inlet pipe 11 is closed, and the other end is connected to a water pump. The water inlet pipe 11 is driven by a drive mechanism to rotate along its axis.

[0017] In use, the culture medium is placed into the fermentation tank 1 using a hopper. The seed liquid is sprayed out through the water inlet pipe 11, the intermediate pipe 3, the rotating disk 7 and the nozzle. When the nozzle sprays out, the water inlet pipe 11 rotates under the drive mechanism, which in turn drives the rotating disk 7 and the main lever 5 to rotate. This not only makes the spraying more uniform, but also drives the main lever 5 to move, making the mixing more uniform.

[0018] The drive mechanism includes a drive motor 8 fixedly mounted at the bottom of the fermenter 1, a driven gear 10 fixedly sleeved on the intermediate tube 3, and a drive gear 9 fixedly sleeved on the shaft of the drive motor 8, which meshes with the driven gear 10. The rotation of the drive motor 8 shaft drives the drive gear 9 to rotate, which in turn drives the driven gear 10 to rotate, thereby realizing the rotation of the intermediate tube 3.

[0019] The intermediate tube 3 has branch tubes 4 perpendicularly connected to both sides. The outer ends of the branch tubes 4 are bent upwards and closed. Several side levers 6 are perpendicularly connected to the vertical part of the branch tubes 4 along their length. The side levers 6 are staggered from the main levers 5. The rotation of the intermediate tube 3 can drive the rotation of the branch tubes 4, thereby ensuring more uniform stirring and mixing.

[0020] The side lever 6 is a tubular structure. One end of the lever is connected to the corresponding branch pipe 4, and the other end is closed. Several second nozzles are fixedly installed on the lever, so that the seed liquid can be sprayed out through the second nozzles during stirring, achieving more uniform mixing.

[0021] The top surface of the rotating disk 7 is provided with a top cap, which has a pointed structure that is narrow at the top and wide at the bottom, which can effectively prevent the culture medium from falling onto the rotating disk 7 and affecting its use.

[0022] The use of this application allows for more even spraying of the seed liquid through the use of the rotating disc 7, while the stirring of the main lever 5 ensures uniform mixing, avoiding severe concentration gradients within the fermenter 1 and guaranteeing synchronous growth of the microorganisms.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed, characterized in that: The system includes a fermenter with a discharge port on its lower side, which is sealed by a detachable door panel. A central tube is vertically installed inside the fermenter, and a hollow rotating disk is vertically connected to the upper end of the central tube. Several first nozzles are arranged around the rotating disk. A main lever is fixedly installed on the central tube. A feed hopper is opened at the top of the fermenter and is sealed by a cover plate. The lower end of the central tube extends out of the fermenter and is sealed at the exit. The central tube is vertically connected to a water inlet pipe via a sealed bearing. One end of the water inlet pipe is sealed, and the other end is connected to a water pump. The water inlet pipe is driven by a drive mechanism to rotate along its axis.

2. The high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed according to claim 1, characterized in that: The driving mechanism includes a drive motor fixedly installed at the bottom of the fermenter, a driven gear fixedly sleeved on the intermediate tube, and a driving gear meshing with the driven gear fixedly sleeved on the shaft of the drive motor.

3. The high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed according to claim 2, characterized in that: The middle pipe has branch pipes on both sides that are perpendicular and connected. The outer ends of the branch pipes are bent upwards and closed. Several side levers are vertically connected to the vertical part of the branch pipes along their length. The side levers are staggered from the main levers.

4. The high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed according to claim 3, characterized in that: The side lever is a tubular structure, with one end connected to the corresponding branch pipe and the other end closed. Several second nozzles are fixedly installed on the lever.

5. The high-efficiency mixing and inoculation device for liquid fermentation of probiotics for feed according to claim 1, characterized in that: The top surface of the rotating disk is provided with a top cap, which is a pointed structure that is narrow at the top and wide at the bottom.

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