A stirred bio-fermentation tank
By using a transmission device to drive the dial and grooved wheel, combined with the coordinated work of the stirring main shaft and the intermittent stirring shaft, the problem of uneven mixing is solved, achieving efficient and uniform mixing in the fermenter, extending equipment life and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN NORMAL UNIV
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-26
AI Technical Summary
Existing stirred bioreactors suffer from uneven mixing, especially in large-scale fermenters, where the stirrer struggles to reach every corner, resulting in insufficient mixing.
A transmission device drives the dial and grooved wheel. Through the coordinated work of the stirring main shaft and the intermittent stirring shaft, combined with the cooperation of the dial and the grooved wheel, intermittent stirring action is achieved. The design of the fixed groove and bearing ensures the smooth rotation of the intermittent stirring shaft, thereby enhancing the mixing efficiency.
It improves stirring efficiency and uniformity, enhances the liquid mixing effect in the fermenter, extends equipment life, reduces maintenance costs, and improves the stability and controllability of the fermentation process.
Smart Images
Figure CN224280211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fermentation tank technology, specifically to a stirred biological fermentation tank. Background Technology
[0002] In existing fermentation technologies, stirring is an important means to promote the uniform mixing of fermentation broth in bio-fermenters. Through stirring, nutrients, oxygen and microbial cells in the fermentation broth can be fully contacted, which can improve the growth rate of microorganisms and the synthesis efficiency of products. However, existing stirred bio-fermenters still have some problems in terms of stirring effect.
[0003] Traditional stirring methods may not be able to fully meet the requirements for uniform mixing of materials in the fermenter, especially when the fermenter is large in scale. The stirrer may not be able to reach every corner of the fermenter, resulting in insufficient mixing. Utility Model Content
[0004] To address the aforementioned problems, this invention provides a stirred bio-fermentation tank. Through a transmission device, the rotation of the stirring main shaft drives the dial to act on the grooved wheel, thereby driving the intermittent stirring shaft and increasing the utilization rate of the solution at the wall.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A stirred bio-fermentation tank includes a liquid-filling cylinder, a motor is provided on the outer top wall of the liquid-filling cylinder, a transmission component for power transmission is provided at the top of the liquid-filling cylinder, and a stirring component for stirring the liquid inside the liquid-filling cylinder is provided at the bottom of the transmission component.
[0006] The transmission assembly includes a dial and grooved wheels. The dial is fixedly connected to the motor output shaft, and the outer top wall of the liquid-filling cylinder is rotatably connected with several grooved wheels corresponding to the dial along its circumference.
[0007] The mixing assembly includes a mixing main shaft and an intermittent mixing shaft. The mixing main shaft, which plays the main mixing role, is fixedly connected to the bottom of the motor output shaft. The intermittent mixing shaft, which increases the degree of mixing, is fixedly connected to the bottom of each groove wheel. The bottom of the intermittent mixing shaft is rotatably connected to a fixed groove. Several first mixing blades are fixedly connected to the mixing main shaft, and several second mixing blades are fixedly connected to each intermittent mixing shaft. The positions of the first mixing blades and the second mixing blades are staggered.
[0008] The technical principle of the above scheme is as follows: The output shaft is driven to rotate by a motor, which in turn drives the stirring main shaft fixedly connected to the bottom of the output shaft to rotate, thus achieving the main stirring effect. At the same time, the rotation of the stirring main shaft drives the grooved wheel to rotate through the interaction between the dial of the transmission component and the grooved wheel. Since the bottom of each grooved wheel is fixedly connected to an intermittent stirring shaft, the rotation of the grooved wheel drives the intermittent stirring shaft to perform intermittent stirring action, increasing the mixing efficiency in the fermenter. Several first stirring blades and second stirring blades fixedly connected to the stirring main shaft and the intermittent stirring shaft respectively play the roles of main stirring and increasing the degree of stirring. In addition, the fixed groove rotatably connected to the bottom of the intermittent stirring shaft and the bearing rotatably connected to the bottom wall of the fixed groove ensure the smooth rotation of the intermittent stirring shaft, further improving the stirring effect.
[0009] The above approach has the following beneficial effects:
[0010] 1. This solution achieves efficient stirring of the liquid in the fermenter by coordinating the operation of the motor-driven stirring main shaft and the intermittent stirring shaft. This design not only improves stirring efficiency but also ensures the uniformity of stirring, thereby helping to improve the overall effect of the bio-fermentation process.
[0011] 2. This solution achieves intermittent stirring action of the intermittent stirring shaft through the cooperation of the dial and the groove wheel. This intermittent stirring method helps to break the laminar flow state in the liquid, promotes more thorough mixing of liquids at different levels, and further improves the mixing efficiency in the fermenter.
[0012] 3. This solution, through the fixed groove and bearing design of the bottom rotating connection of the intermittent stirring shaft, ensures the smooth rotation of the intermittent stirring shaft, reduces wear and the possibility of failure, which not only extends the service life of the equipment, but also reduces maintenance costs, bringing higher economic benefits to users.
[0013] Furthermore, the upper part of the side wall of the liquid-filling cylinder is connected to a feed inlet, and a first valve is provided on the feed inlet.
[0014] Beneficial effects: By setting the feed inlet at the top of the outer wall of the liquid filling cylinder, operators can easily add the required fermentation materials or other additives into the fermenter without moving or disassembling other parts of the fermenter, which improves the convenience and efficiency of operation. The speed and quantity of material addition can be flexibly adjusted according to the needs of the fermentation process, ensuring the stability and controllability of the fermentation process.
[0015] Furthermore, an air inlet is connected to the outer wall of the liquid-filling cylinder at a location symmetrical to the feed inlet, and a second valve is provided on the air inlet.
[0016] Beneficial effects: By adjusting the air intake volume and time, operators can better control the rhythm and progress of the fermentation process, ensuring that the fermentation process proceeds according to the predetermined process parameters, thereby improving the stability and controllability of the fermentation. During the bio-fermentation process, microorganisms usually need oxygen for respiration, which promotes their growth and the production of metabolic products. By introducing air or oxygen-enriched gas into the fermenter through the air inlet, the oxygen demand of microorganisms can be met, thus improving the fermentation efficiency.
[0017] Furthermore, the bottom of the liquid-filling cylinder is connected to a discharge port, and a sealing plate is hinged to the bottom of the discharge port.
[0018] Beneficial effects: Fermentation products are discharged through the outlet. The hinged sealing plate design allows operators to easily open or close the outlet, thus facilitating material discharge and improving operational efficiency. During fermentation, the sealing plate tightly closes the outlet, effectively preventing leakage of liquids, gases, or microorganisms from the fermenter and maintaining the stability and sealing of the fermentation environment.
[0019] Furthermore, the inner wall of the liquid-filling cylinder is fixedly connected with several fixing components for limiting the stirring spindle.
[0020] Beneficial effect: The stirring spindle is firmly fixed to the inner wall of the liquid-filling cylinder by the fixing component, thereby avoiding potential safety hazards.
[0021] Furthermore, each of the fixing components includes a fixing ring, which is rotatably connected to the stirring main shaft. Several fixing rods are fixedly connected to the outer wall of the fixing ring along its circumference, and the other end of each fixing rod is fixedly connected to the inner wall of the liquid-filling cylinder.
[0022] Beneficial effects: By firmly connecting the fixing ring to the inner wall of the liquid-filling cylinder with the fixing rod, and then rotating the stirring shaft to the inner wall of the fixing ring, this structure can significantly enhance the stability of the stirring shaft during rotation. The fixing ring provides a stable support point for the stirring shaft, ensuring that the stirrer will not shake or deviate when rotating at high speed, thereby improving the stability and uniformity of stirring.
[0023] Furthermore, an insulation layer made of thermal insulation material is fixedly connected to the outer wall of the liquid-filling cylinder.
[0024] Beneficial effects: By setting up an insulation layer, heat exchange between the inner and outer walls of the liquid-filling cylinder can be effectively reduced, thereby maintaining a stable temperature inside the fermenter. This is crucial for many biological fermentation processes, as temperature is one of the key factors affecting microbial growth and metabolism. A stable temperature environment helps improve fermentation efficiency and ensures the quality and consistency of the product.
[0025] Furthermore, several supports are fixedly connected to the bottom wall of the liquid-filling cylinder.
[0026] Beneficial effects: The support structure of the bracket ensures the stability of the fermenter during placement and use, distributes the weight of the fermenter, and guarantees the safe operation of the fermenter.
[0027] Furthermore, the bottom of each bracket is fixedly connected with an anti-slip layer.
[0028] Beneficial effects: The anti-slip layer design significantly increases the friction between the support and the ground, thereby preventing the fermenter from sliding due to external forces during placement or use, which ensures the safety and stability of the fermenter.
[0029] Furthermore, bearings are provided between the bottom wall of the fixed tank and the intermittent stirring shaft.
[0030] Beneficial effects: By incorporating bearings, the service life of these components can be significantly extended, reducing the frequency of maintenance and replacement. At the same time, bearings can reduce energy loss of rotating components during operation, thereby improving rotational efficiency.
[0031] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0032] Figure 1 This is a front sectional view of a stirred bio-fermentation tank according to the present invention.
[0033] Figure 2 This is a top view of the transmission assembly of an embodiment of a stirred bio-fermentation tank according to the present invention;
[0034] Figure 3 This is a top view of the bearing in an embodiment of a stirred bio-fermentation tank according to the present invention.
[0035] The reference numerals in the accompanying drawings of the instruction manual include: 1. Liquid-filling cylinder; 2. Motor; 3. Dial; 4. Grooved wheel; 5. Stirring main shaft; 6. Intermittent stirring shaft; 7. First stirring blade; 8. Second stirring blade; 9. First valve; 10. Second valve; 11. Sealing plate; 12. Fixing rod; 13. Fixing ring; 14. Insulation layer; 15. Support; 16. Bearing. Detailed Implementation
[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] The following detailed description illustrates the specific implementation methods:
[0040] Example 1:
[0041] As attached Figure 1-3 As shown: A stirred bio-fermentation tank includes a liquid-filling cylinder 1, a motor 2 welded to the outer top wall of the liquid-filling cylinder 1, a transmission component for power transmission fixedly connected to the top of the liquid-filling cylinder 1 by bolts, and a stirring component for stirring the liquid inside the liquid-filling cylinder 1 welded to the bottom of the transmission component.
[0042] The transmission assembly includes a dial 3 and grooved wheels 4. The dial 3 is fixedly connected to the output shaft of the motor 2 by bolts. The outer top wall of the liquid-filling cylinder 1 is rotatably connected with a number of grooved wheels 4 corresponding to the dial 3.
[0043] The stirring assembly includes a stirring main shaft 5. The bottom end of the output shaft of the motor 2 is coaxially connected to the stirring main shaft 5, which plays the main stirring role, thoroughly stirring the solution and quickly mixing the solution in the tank. The bottom end of the stirring main shaft 5 does not contact the bottom wall of the liquid-filling cylinder 1. The bottom of the groove wheel 4 is welded with an intermittent stirring shaft 6 to increase the degree of stirring. It acts on the solution that is stagnant near the tank wall and transfers the solution to the vicinity of the stirring main shaft 5, so that the solution is mixed more thoroughly. The bottom end of the intermittent stirring shaft 6 is rotatably connected to a fixed groove to increase the stability of the movement of the intermittent stirring shaft 6. Several first stirring blades 7 are welded on the stirring main shaft 5, and several second stirring blades 8 are welded on the intermittent stirring shaft 6. The first stirring blades 7 and the second stirring blades 8 increase the efficiency of solution mixing. The bottom wall of the fixed groove and the bottom end of the intermittent stirring shaft 6 are rotatably connected with bearings 16. The bearings 16 increase the stability of the intermittent stirring shaft 6 during operation and reduce the wear of the intermittent stirring shaft 6 during operation.
[0044] Several fixing components for limiting the movement of the stirring shaft 5 are fixedly connected to the inner wall of the liquid-filling cylinder 1. The fixing components include fixing rods 12, one end of which is welded to the inner wall of the liquid-filling cylinder 1. A fixing ring 13 is welded to the end of the fixing rod 12 near the stirring shaft 5. The stirring shaft 5 is rotatably connected to the inner wall of the fixing ring 13. The fixing ring 13 can effectively reduce the displacement of the stirring shaft 5 caused by centrifugal force when it rotates.
[0045] The specific implementation process is as follows: When the solution is mixed, the operator starts the motor 2, the motor 2 starts to rotate, the dial 3 which is fixedly connected to the output shaft of the motor 2 starts to rotate, the lever on the dial 3 cooperates with the sliding groove on the grooved wheel 4, so that the grooved wheel 4 starts to rotate intermittently; the stirring shaft 5 which is coaxially connected to the output shaft of the motor 2 starts to operate, the solution begins to mix with each other, at the same time, the intermittent stirring shaft 6 which is welded to the grooved wheel 4 starts to work, transferring the solution that is difficult to mix on the barrel wall to the vicinity of the stirring shaft 5.
[0046] Example 2:
[0047] As attached Figure 1-3 As shown, the difference from Embodiment 1 is that the top of the outer wall of the liquid-filling cylinder 1 is connected to a feed inlet, which reduces the cumbersome steps of filling raw materials. A first valve 9 is provided on the feed inlet, which allows for more accurate control of the feed amount. An air inlet is connected to the outer wall of the liquid-filling cylinder 1 at a position symmetrical to the feed inlet, which further improves the fermentation process of the solution in the liquid-filling cylinder 1. A second valve 10 is provided on the air inlet, which increases the controllability of the air intake. The bottom of the liquid-filling cylinder 1 is connected to a discharge outlet, which makes the process of obtaining the finished product simpler. A sealing plate 11 is hinged to the bottom of the discharge outlet, which increases the convenience of collecting the finished product and also prevents the solution from leaking out during stirring.
[0048] The specific implementation process is as follows: When preparing to fill the solution, open the first valve 9 and fill the solution into the liquid filling cylinder 1 through the feed port. Then close the first valve 9 and open the second valve 10 to introduce the gas required for fermentation. Use the second valve 10 to control the gas flow rate. After mixing is completed, open the sealing plate 11 to obtain the solution. For example, open the first valve 9 of the feed port and inject the sugar solution (containing yeast) into the liquid filling cylinder 1 through the feed port. Close the first valve 9 to ensure the feed port is sealed. Open the second valve 10 of the air inlet to introduce sterile air into the tank. Adjust the valve opening to maintain the oxygen flow rate at 0.5 L / min to meet the aerobic respiration requirements of the yeast. Monitor and adjust the air intake in real time through the second valve 10.
[0049] Example 3:
[0050] As attached Figure 1-3 As shown, the difference from Embodiment 2 is that the outer wall of the liquid-filling cylinder 1 is fixedly connected to an insulation layer 14 made of heat-insulating material, which can reduce the loss of temperature in the liquid-filling cylinder 1. The outer bottom wall of the liquid-filling cylinder 1 is connected to several supports 15 by bolts, and the bottom of each support 15 is fixedly connected to an anti-slip layer. The anti-slip layer design ensures the stability of the bio-fermentation device during operation.
[0051] The specific implementation process is as follows: Before starting the bio-fermentation device, place the device on a stable workbench, check whether the insulation layer 14 is loose, check whether the anti-slip layer has fallen off, and check whether the anti-slip layer is in contact with the table. Start the motor 2, and observe again whether the machine body shakes obviously. Check whether the position of the bracket relative to the workbench has changed. If there is no change, it means that the machine body is successfully fixed.
[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A stirred bio-fermentation tank, characterized in that, It includes a liquid-filling cylinder (1), a motor (2) is provided on the outer top wall of the liquid-filling cylinder (1), a transmission component for power transmission is provided on the top of the liquid-filling cylinder (1), and a stirring component for stirring the liquid inside the liquid-filling cylinder (1) is provided at the bottom of the transmission component. The transmission assembly includes a dial (3) and a grooved wheel (4). The dial (3) is coaxially and fixedly connected to the output shaft of the motor (2). The outer top wall of the liquid-filling cylinder (1) is rotatably connected with a number of grooved wheels (4) corresponding to the dial (3). The stirring assembly includes a stirring main shaft (5), the top of the stirring main shaft (5) is coaxially connected to the output shaft of the motor (2), the bottom of the groove wheel (4) is fixedly connected to an intermittent stirring shaft (6), the bottom of the intermittent stirring shaft (6) is rotatably connected to a fixed groove, the fixed groove is fixedly connected to the bottom of the liquid-filling cylinder (1), a number of first stirring blades (7) are fixedly connected on the stirring main shaft (5), and a number of second stirring blades (8) are fixedly connected on the intermittent stirring shaft (6), the positions of the first stirring blades and the second stirring blades are staggered.
2. The stirred bio-fermentation tank according to claim 1, characterized in that, The upper part of the side wall of the liquid-filling cylinder (1) is connected to the feed inlet, and the feed inlet is equipped with a first valve (9).
3. The stirred bio-fermentation tank according to claim 2, characterized in that, An air inlet is connected to the outer wall of the liquid-filling cylinder (1) at a location symmetrical to the feed inlet, and a second valve (10) is provided on the air inlet.
4. The stirred bio-fermentation tank according to claim 3, characterized in that, The bottom of the liquid-filling cylinder (1) is connected to a discharge port, and a sealing plate (11) is hinged to the bottom of the discharge port.
5. The stirred bioreactor according to claim 4, characterized in that, The inner wall of the liquid-filling cylinder (1) is fixedly connected with several fixing components for limiting the stirring spindle (5).
6. The stirred bio-fermentation tank according to claim 5, characterized in that, All the fixing components include a fixing ring (13), which is rotatably connected to the stirring shaft (5). Several fixing rods (12) are fixedly connected to the outer wall of the fixing ring (13) along its circumference. The other end of the fixing rods (12) is fixedly connected to the inner wall of the liquid-filling cylinder (1).
7. The stirred bio-fermentation tank according to claim 6, characterized in that, The outer wall of the liquid-filling cylinder (1) is fixedly connected with an insulation layer (14) made of insulation material.
8. The stirred bio-fermentation tank according to claim 7, characterized in that, The bottom wall of the liquid-filling cylinder (1) is fixedly connected with several supports (15).
9. The stirred bio-fermentation tank according to claim 8, characterized in that, The bottom of the bracket (15) is fixedly connected with an anti-slip layer.
10. The stirred bio-fermenter according to claim 9, characterized in that, Bearings (16) are provided at the connection between the bottom wall of the fixed tank and the intermittent stirring shaft (6).