Fermentation tank for NMN production

By introducing multiple sets of auxiliary stirring components and an automatic exhaust system into the fermenter, the problems of uneven mixing of raw materials and untimely gas emission in NMN production were solved, thereby improving fermentation efficiency and safety.

CN224258618UActive Publication Date: 2026-05-19ECA HEALTHCARE INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ECA HEALTHCARE INC
Filing Date
2025-07-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing fermenters in NMN production suffer from problems such as uneven mixing of raw materials and untimely gas emission, resulting in low fermentation yield and safety hazards.

Method used

A fermenter with multiple sets of auxiliary stirring components and automatic venting components was designed. It achieves complex turbulent mixing through a hollow shaft and transmission gear system, and automatically vents under high pressure, thereby improving mixing efficiency and safety.

Benefits of technology

This method achieves thorough mixing of NMN raw materials and timely gas emission, thereby improving fermentation yield and enhancing equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of NMN production, and particularly relates to a fermentation tank for NMN production, which comprises a tank body, a hollow shaft I is rotatably connected in the tank body through a bearing, two vane plates are fixed on the surface of the hollow shaft I, and three groups of auxiliary stirring components are arranged on the surface of the hollow shaft I. The first hollow shaft arranged in the tank body can drive the blade plates to mix NMN raw materials, and the three auxiliary stirring assemblies can further stir the NMN raw materials in an auxiliary mode during mixing, so that the NMN raw materials can generate more complex turbulent motion in the tank body, the mixing efficiency of the NMN raw materials is improved, and the mixing efficiency of the NMN raw materials is improved. According to the NMN tank, the production efficiency of the NMN is prevented from being affected, the exhaust assembly is installed at the exhaust position of the top of the tank body, when the content of gas in the tank body is large, the exhaust assembly can be automatically jacked up for exhausting, after exhausting is completed, the exhaust hole can be continuously plugged through the exhaust assembly, and the safety of the tank body in the using process is improved.
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Description

Technical Field

[0001] This utility model relates to the field of NMN production technology, specifically a fermentation tank for NMN production. Background Technology

[0002] NMN is a precursor to NAD+ (nicotinamide adenine dinucleotide), a key coenzyme in the human body. NAD+ plays an important role in cellular energy metabolism, DNA repair, and antioxidation. As we age, the level of NAD+ in the human body gradually declines, and supplementing with NMN is believed to increase NAD+ levels, thereby delaying aging and improving health. For example, when producing NMN through microbial fermentation, a fermentation tank is required. Since the inside of the fermentation tank is usually equipped with a single agitator to mix the raw materials, the single agitator usually mainly flows radially, making it difficult to simultaneously mix the upper and lower layers of fluid. This can lead to a concentration gradient in the raw materials due to insufficient contact, affecting the uniform uptake of nutrients by microorganisms and ultimately resulting in low fermentation yield. In addition, some gases are generated during the fermentation of NMN raw materials. If these gases are not removed in time, they can cause excessive pressure inside the fermentation tank, which may even cause the fermentation tank to explode in severe cases. Therefore, we have proposed a fermentation tank for NMN production to solve the above problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a fermentation tank for NMN production, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A fermenter for NMN production includes a tank body. A hollow shaft is rotatably connected to the inside of the tank body via bearings. Two blades are fixed to the surface of the hollow shaft. Three sets of auxiliary stirring components are arranged on the surface of the hollow shaft. Each auxiliary stirring component includes a hollow support rod fixed to the surface of the hollow shaft. Both ends of the hollow support rod are connected to and fixed with annular shells. A second hollow shaft is rotatably connected to the inside of each annular shell via bearings. Impellers and blades are fixed to the surface of each second hollow shaft. A hollow guide rod is fixed inside the hollow support rod. Both ends of the hollow guide rod extend through the hollow support rod to its exterior and are respectively connected to and fixed with corresponding annular shells. A hollow exhaust rod is connected to and fixed at the bottom of the hollow support rod. The other end of the hollow exhaust rod is connected to and fixed with the first hollow shaft. An inlet pipe is connected to and fixed at the top of the tank body, and a drain pipe is connected to and fixed at the bottom of the tank body.

[0008] Furthermore, the top of the tank is rotatably connected to a drive shaft via a bearing, and drive gears are fixed to the surfaces of both the hollow shaft and the drive shaft, with the two drive gears meshing with each other.

[0009] Furthermore, a support plate is fixed to the top of the tank, and an L-shaped tube is fixed inside the through hole opened on the side wall of the support plate. A rotatable male connector is fixed to the bottom end of the L-shaped tube, and a rotatable female connector is fixed to the top end of the hollow shaft.

[0010] Furthermore, an exhaust pipe is fixedly connected to the exhaust port of the tank, a guide seat is fixedly fixed to the surface of the exhaust pipe, a sealing plug adapted to the exhaust pipe is slidably connected to the guide seat, the bottom end of the sealing plug is inserted into the inside of the exhaust pipe, a spring is fixedly fixed to the top of the sealing plug, and the top end of the spring is fixedly connected to the top inner wall of the guide seat.

[0011] Furthermore, a protective shell is fixed to the outer wall of the tank, and four heating plates fixed to the outer wall of the tank are arranged inside the protective shell.

[0012] Furthermore, a triangular scraper is fixed to one side wall of the hollow support rod, and the triangular scraper is in close contact with the inner wall of the tank.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a fermenter for NMN production, which has the following beneficial effects:

[0015] This invention utilizes a hollow shaft inside the tank to drive blades for mixing NMN raw materials. Simultaneously, three auxiliary stirring components further agitate the NMN raw materials, creating more complex turbulent flow within the tank to improve mixing efficiency and prevent impact on NMN production efficiency. Furthermore, an exhaust assembly is installed at the top of the tank. When the internal gas content is high, the exhaust assembly automatically lifts to release gas. After exhausting, the exhaust port can be sealed, enhancing the safety of the tank during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the hollow shaft structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the annular shell structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the exhaust pipe structure of this utility model.

[0022] In the diagram: 1. Tank body; 2. Hollow shaft one; 3. Blade; 4. Auxiliary stirring assembly; 401. Hollow support rod; 402. Annular shell; 403. Hollow shaft two; 404. Impeller; 405. Blade; 406. Hollow guide rod; 407. Hollow exhaust rod; 5. Inlet pipe; 6. Drain pipe; 7. Drive shaft; 8. Drive gear; 9. Support plate; 10. L-shaped pipe; 11. Rotatable male connector; 12. Rotatable female connector; 13. Exhaust pipe; 14. Guide seat; 15. Sealing plug; 16. Spring; 17. Protective shell; 18. Heating plate; 19. Triangular scraper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, an embodiment of this utility model discloses a fermentation tank for NMN production, including a tank body 1. A hollow shaft 2 is rotatably connected to the inside of the tank body 1 via bearings. Two blades 3 are fixed to the surface of the hollow shaft 2. Three sets of auxiliary stirring components 4 are arranged on the surface of the hollow shaft 2. The auxiliary stirring components 4 include a hollow support rod 401 fixed to the surface of the hollow shaft 2. A triangular scraper 19 is fixed to one side wall of the hollow support rod 401. The triangular scraper 19 is tightly fitted to the inner wall of the tank body 1. The triangular scraper 19 can scrape the inner wall of the tank body 1, preventing some raw materials from adhering to the inner wall during discharge after fermentation. Both the upper and lower ends of the hollow support rod 401 are connected and fixed with annular shells 402. The interior of the annular shells 402 is connected to... A hollow shaft 403 is rotatably connected to the bearing. Impellers 404 and blades 405 are fixed to the surface of the hollow shaft 403. A hollow guide rod 406 is fixed inside the hollow support rod 401. Both ends of the hollow guide rod 406 extend through the hollow support rod 401 to its outside and are respectively connected and fixed to the corresponding annular shell 402. A hollow exhaust rod 407 is fixed to the bottom of the hollow support rod 401. The other end of the hollow exhaust rod 407 is fixed to the hollow shaft 2. An inlet pipe 5 is fixed to the top of the tank 1, and a drain pipe 6 is fixed to the bottom of the tank 1. A rubber sealing plug is installed at the top of the inlet pipe 5, and a valve is installed on the drain pipe 6. However, the rubber sealing plug and valve are not shown in the figure. The top of the tank 1... A drive shaft 7 is rotatably connected via a bearing. Both the hollow shaft 2 and the drive shaft 7 have drive gears 8 fixed to their surfaces. The two drive gears 8 mesh with each other, allowing the motor to rotate the hollow shaft 2 even when it is not fixed to either end. A support plate 9 is fixed to the top of the tank 1. An L-shaped tube 10 is fixed inside a through hole in the side wall of the support plate 9. A rotatable male connector 11 is fixed to the bottom of the L-shaped tube 10, and a rotatable female connector 12 is fixed to the top of the hollow shaft 2. After the compressed air delivery pipeline is connected and fixed to the L-shaped tube 10, the rotatable male connector 11 and rotatable female connector 12 ensure that the rotation of the hollow shaft 2 will not affect the normal delivery of compressed air. In the fermentation process using this NMN production tank, the raw materials for NMN production can be sent into the tank 1 through the liquid inlet pipe 5. The forward and reverse motor is started, driving the drive shaft 7 to rotate. With the cooperation of two drive gears 8, the rotation of the drive shaft 7 drives the hollow shaft 2 to rotate synchronously. When the hollow shaft 2 rotates, it drives the two blades 3 to rotate, thus stirring the raw materials inside the tank 1. After connecting and fixing the compressed air pipe to the L-shaped pipe 10, the compressed air enters the upper part of the hollow shaft 2, and then enters the interior of the hollow guide rod 406. When the compressed air is blown out through the two exhaust ends of the two hollow guide rods 406, it drives the impeller 404 inside the annular shell 402 to rotate.The rotation of impeller 404 drives the rotation of hollow shaft 403, which in turn drives blades 405 to assist in stirring the raw materials. Since the impeller 404 and hollow shaft 403 have strip-shaped exhaust ports arranged in a ring array, the air used to drive the impeller 404 from inside the annular shell 402 passes through the strip-shaped exhaust ports into the hollow support rod 401, then flows into the hollow exhaust rod 407. Finally, the used compressed air enters the lower half of hollow shaft 2 and is discharged. During the stirring process, when the reversible motor drives hollow shaft 2 to rotate, the hollow support rod 401, which is fixed to its surface, rotates back and forth, causing it to rotate back and forth as well. This further disrupts the mixing of the raw materials inside tank 1, improving mixing efficiency.

[0026] like Figure 1 and Figure 6 As shown, in some embodiments, an exhaust pipe 13 is fixedly connected to the exhaust port of the tank 1. A guide seat 14 is fixed to the surface of the exhaust pipe 13. A sealing plug 15 adapted to the exhaust pipe 13 is slidably connected to the guide seat 14. The bottom end of the sealing plug 15 is inserted into the interior of the exhaust pipe 13. A spring 16 is fixed to the top of the sealing plug 15. The top end of the spring 16 is fixedly connected to the top inner wall of the guide seat 14. In use, when there is a lot of gas inside the tank 1, resulting in a large internal pressure, the gas will enter the interior of the exhaust pipe 13 and push up the sealing plug 15 inside. After the sealing plug 15 moves up, it will squeeze the spring 16. When the bottom end of the sealing plug 15 separates from the bottom end of the exhaust pipe 13, the gas inside the tank 1 can be discharged through the top end of the exhaust pipe 13. After the gas is discharged, the internal pressure is not enough to push up the spring 16. At this time, under the reset action of the compressed spring 16, the sealing plug 15 can seal the top end of the exhaust pipe 13 again.

[0027] like Figure 2 As shown, in some embodiments, a protective shell 17 is fixed to the outer wall of the tank 1. Four heating plates 18 fixed to the outer wall of the tank 1 are arranged inside the protective shell 17. The heating plates 18 can heat the raw materials inside the tank 1 in order to accelerate the fermentation speed of the NMN raw materials inside the tank 1 as needed. The protective shell 17 serves to protect the heating plates 18.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fermenter for NMN production, comprising a tank body (1), characterized in that: The interior of the tank (1) is rotatably connected to a hollow shaft one (2) via bearings. Two blades (3) are fixed to the surface of the hollow shaft one (2). Three sets of auxiliary stirring components (4) are provided on the surface of the hollow shaft one (2). The auxiliary stirring components (4) include a hollow support rod (401) fixed to the surface of the hollow shaft one (2). Both the upper and lower ends of the hollow support rod (401) are connected and fixed to an annular shell (402). The interior of the annular shell (402) is rotatably connected to a hollow shaft two (403) via bearings. Impellers are fixed to the surface of the hollow shaft two (403). 404) and blade (405), hollow support rod (401) is fixed with hollow guide rod (406) inside, both ends of hollow guide rod (406) extend through hollow support rod (401) to its outside and are respectively connected and fixed to the corresponding annular shell (402), hollow support rod (401) is fixed with hollow exhaust rod (407) at the bottom, hollow exhaust rod (407) is fixed with the other end of hollow shaft (2), liquid inlet pipe (5) is fixed with the top of tank (1), and liquid outlet pipe (6) is fixed with the bottom of tank (1).

2. A fermenter for NMN production according to claim 1, characterized in that: The top of the tank (1) is rotatably connected to a drive shaft (7) via a bearing. Both the hollow shaft (2) and the drive shaft (7) are fixed with drive gears (8), and the two drive gears (8) mesh with each other.

3. A fermenter for NMN production according to claim 1, characterized in that: The top of the tank (1) is fixed with a support plate (9), and an L-shaped tube (10) is fixed inside the through hole opened on the side wall of the support plate (9). The bottom end of the L-shaped tube (10) is connected to a rotatable male connector (11), and the top end of the hollow shaft (2) is connected to a rotatable female connector (12).

4. A fermenter for NMN production according to claim 1, characterized in that: An exhaust pipe (13) is fixedly connected to the exhaust port of the tank (1). A guide seat (14) is fixed on the surface of the exhaust pipe (13). A sealing plug (15) adapted to the exhaust pipe (13) is slidably connected on the guide seat (14). The bottom end of the sealing plug (15) is inserted into the interior of the exhaust pipe (13). A spring (16) is fixed on the top of the sealing plug (15). The top end of the spring (16) is fixedly connected to the top inner wall of the guide seat (14).

5. A fermenter for NMN production according to claim 1, characterized in that: The outer wall of the tank (1) is fixed with a protective shell (17), and the inside of the protective shell (17) is provided with four heating plates (18) fixed to the outer wall of the tank (1).

6. A fermenter for NMN production according to claim 1, characterized in that: A triangular scraper (19) is fixed to one side wall of the hollow support rod (401), and the triangular scraper (19) is in close contact with the inner wall of the tank (1).