A biological feed fermentation device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANGZHOU UNIV
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-29
AI Technical Summary
Existing biological feed fermentation devices are difficult to sample quickly and effectively, making it impossible to accurately grasp the degree of fermentation and the fermentation status of feed at different locations.
The system employs a drive mechanism that includes a stirring mechanism and a driving sampling tube. The horizontal and vertical movement of the sampling tube is controlled by a motor, and the biological feed is stirred and sampled by a spiral shaft, achieving rapid and accurate sampling.
It improves the efficiency of mixing and sampling of biological feed, ensures sample representativeness, facilitates timely understanding of fermentation, and improves fermentation quality.
Smart Images

Figure CN122104389A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of biological feed production equipment technology, and in particular to a biological feed fermentation device. Background Technology
[0002] Biological feed refers to a general term for feed products developed using feed raw materials and additives through bioengineering technologies such as fermentation engineering, enzyme engineering, protein engineering, and genetic engineering. In the production process of biological feed, fermentation is carried out through fermentation devices to transform raw materials into feed that is more easily digestible and has higher nutritional value, thereby improving feed quality, reducing costs, and improving safety.
[0003] Most existing biological feed fermentation devices involve mixing the biological feed thoroughly before fermentation, and then mixing it again during the fermentation process based on the actual fermentation situation. However, existing biological feed fermentation devices do not allow for easy sampling and observation of the biological feed, making it difficult to clearly understand the degree of fermentation and to sample the biological feed from different locations.
[0004] The Chinese Patent Database discloses a microbial fermentation device and method for feed, publication number CN117384743 A, published on January 12, 2024. The device includes a fermentation tank with a discharge pipe at the bottom. A first solenoid valve is installed inside the discharge pipe, and a feeding pipe is located outside the fermentation tank. This device can collect the fermentation raw materials inside, and can collect fermentation raw materials located at different heights and different positions at the same height, enabling more comprehensive collection of fermentation raw materials and improving the accuracy of the final test results. The drawback of this device is that since most feeds are solid or viscous liquids, relying solely on gravity makes it difficult for the collection bottle to move downwards on its own, or the downward movement is slow. Feed collection is time-consuming, inefficient, and inconvenient to use. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a biological feed fermentation device. The sampling device can quickly reach the sampling point, has high sampling efficiency, is easy to use, and helps users to conveniently and quickly grasp the fermentation status of biological feed in the fermentation tank.
[0006] The objective of this invention is achieved as follows: a biological feed fermentation device includes a fermentation tank, on which an inlet pipe and a first outlet pipe are connected. A support is provided inside the fermentation tank along the radial direction of the fermentation tank. A first motor is provided in the middle of the support. The output shaft end of the first motor is driven and connected to a first rotating rod. The first rotating rod extends into the fermentation tank and is fixedly connected to a rotating disk at the bottom of the fermentation tank. A stirring mechanism for mixing and stirring the biological feed inside the fermentation tank is provided on the first rotating rod.
[0007] When this invention is in operation, the first motor is started, and the output shaft of the first motor drives the first rotating rod to rotate. The first rotating rod drives the fixed frame on the mounting block to rotate. The gear outside the fixed frame rotates with the fixed frame and rolls around the teeth on the inner wall of the fermenter with the first rotating rod as the axis. The gear drives the reciprocating screw on the second rotating rod to rotate. Through the thread action, the moving block on the reciprocating screw drives the limiting ring on the connecting plate to move. The limiting ring drives the sampling tube to move along the limiting groove on the rotating disk, so that the horizontal movement of the sampling tube and the rotation of the circular shaft are carried out simultaneously, improving the mixing efficiency of the biological feed.
[0008] Furthermore, the stirring mechanism includes a mounting block connected to a first rotating rod above the feed pipe. A fixed frame is horizontally connected to both sides of the mounting block. A second rotating rod is provided inside the fixed frame. The two ends of the second rotating rod are rotatably connected to the side walls of the fixed frame via rotating shafts. The end of the second rotating rod extends out of the fixed frame and is connected to a gear. A gear ring meshing with the gear is provided on the inner wall of the fermenter. A reciprocating screw is fitted onto the surface of the second rotating rod. A moving block is fitted onto the surface of the reciprocating screw. The moving block reciprocates within the fixed frame following the rotation of the reciprocating screw. A connecting plate is connected to the moving block outside the fixed frame. A limiting ring is provided on the connecting plate. A sampling cylinder is slidably connected to the inner wall of the limiting ring. A driving mechanism for moving the sampling cylinder is provided on the limiting ring.
[0009] Furthermore, the driving mechanism includes a third motor fixedly installed below the fixed frame, the output shaft of the third motor being drivenly connected to a friction roller, the sidewall surface of the friction roller being in close contact with the sampling cylinder; the lower sidewall surface of the sampling cylinder is provided with an opening, a second discharge pipe is connected to the upper sidewall of the sampling cylinder, the inside of the sampling cylinder is provided with a spiral shaft for vertically transporting feed, the lower end of the spiral shaft is provided with a sealing plate for sealing the opening, the top of the sampling cylinder is provided with a second motor, the output shaft of the second motor being drivenly connected to the spiral shaft.
[0010] Furthermore, two of each of the second and third motors are provided with the sampling tube. The second and third motors are independently powered by batteries, and the sampling points are precisely controlled by the motors, resulting in fast sampling speed.
[0011] Furthermore, the sampling cylinder sidewall is provided with several friction protrusions to increase the friction between the sampling cylinder sidewall and the limiting ring and friction roller.
[0012] Furthermore, the fixing frame is detachably connected to both sides of the mounting block by bolts, which facilitates installation and maintenance.
[0013] Furthermore, the rotating disk is provided with a limiting groove adapted to the sampling tube. Two limiting grooves are provided parallel to each other on the front and back of the fixed frame, corresponding to the sampling tube. The lower end of the sampling tube moves back and forth in the limiting groove.
[0014] Furthermore, the two ends of the support are fixedly connected to the inner wall of the fermentation tank by welding, and the bottom surface of the support is provided with reinforcing ribs to improve the structural strength of the support.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: First, the mixing mechanism and the driving mechanism that drives the sampling tube to move allow the sampling tube to move horizontally and rotate simultaneously, thereby improving the mixing efficiency of the biological feed and enhancing the representativeness of the collected samples.
[0016] Secondly, in this device, the horizontal position of the sampling tube is adjusted by a reciprocating screw, the vertical position of the sampling tube is adjusted by a friction roller, and then the biological feed is collected by rotating the spiral shaft. The stationary position of the sampling tube can be controlled by the motor, thereby realizing sampling at different positions, improving the sampling efficiency of biological feed, making it easier for staff to understand the fermentation status of biological feed in a timely manner, making corresponding judgments, and helping to improve the fermentation quality of biological feed.
[0017] Third, the sampling tube in this device moves up and down via a motor, resulting in short sample collection time, high efficiency, and ease of use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention.
[0020] Figure 3 This is a schematic diagram of the stirring mechanism in this invention.
[0021] Figure 4 This is a schematic diagram of the sampling component in this invention.
[0022] Figure 5 This is a schematic diagram of the structure of the helical shaft in this invention.
[0023] The components include: 1. Fermentation tank; 2. Feed pipe; 3. Mounting block; 4. First motor; 5. Fixing frame; 6. Bracket; 7. Second motor; 8. Gear; 9. Limiting ring; 10. Friction roller; 11. Gear ring; 12. Sampling cylinder; 13. Opening; 14. Limiting groove; 15. Rotating disk; 16. First discharge pipe; 17. First rotating rod; 18. Second rotating rod; 19. Connecting plate; 20. Moving block; 21. Reciprocating screw; 22. Second discharge pipe; 23. Third motor; 24. Sealing plate; 25. Spiral shaft. Detailed Implementation
[0024] like Figures 1-5 The biological feed fermentation device shown includes a fermentation tank 1, with an inlet pipe 2 and a first outlet pipe 16 connected to the fermentation tank 1. A support 6 is provided radially inside the fermentation tank 1, and a first motor 4 is provided in the middle of the support 6. The output shaft end of the first motor 4 is drivenly connected to a first rotating rod 17. The first rotating rod 17 extends into the fermentation tank 1 and is fixedly connected to a rotating disk 15 at the bottom of the fermentation tank 1. A stirring mechanism is provided on the first rotating rod 17 for mixing and stirring the biological feed inside the fermentation tank 1.
[0025] The stirring mechanism includes a mounting block 3 connected to a first rotating rod 17 above the feed pipe 2. The mounting block 3 is horizontally connected to a fixed frame 5 on both sides. A second rotating rod 18 is provided inside the fixed frame 5. The two ends of the second rotating rod 18 are rotatably connected to the side walls of the fixed frame 5 via rotating shafts. The end of the second rotating rod 18 extends out of the fixed frame 5 and is connected to a gear 8. A toothed ring 11 that meshes with the gear 8 is provided on the inner wall of the fermentation tank 1. A reciprocating screw 21 is sleeved on the surface of the second rotating rod 18. A moving block 20 is sleeved on the surface of the reciprocating screw 21. The moving block 20 moves back and forth within the fixed frame 5 following the rotation of the reciprocating screw 21. A connecting plate 19 is connected to the moving block 20 outside the fixed frame 5. A limiting ring 9 is provided on the connecting plate 19. A sampling cylinder 12 is slidably connected to the inner wall of the limiting ring 9. A driving mechanism for driving the sampling cylinder 12 to move is provided on the limiting ring 9.
[0026] The driving mechanism includes a third motor 23 fixedly installed below the fixed frame 5. The output shaft of the third motor 23 is connected to a friction roller 10. The side wall surface of the friction roller 10 is in close contact with the sampling cylinder 12. The lower side wall surface of the sampling cylinder 12 is provided with an opening 13. A second discharge pipe 22 is connected to the upper side wall of the sampling cylinder 12. The inside of the sampling cylinder 12 is provided with a spiral shaft 25 for vertically transporting feed. The lower end of the spiral shaft 25 is provided with a sealing plate 24 for sealing the opening 13. A second motor 7 is provided at the top of the sampling cylinder 12. The output shaft of the second motor 7 is connected to the spiral shaft 25.
[0027] The second motor 7 and the third motor 23 are respectively provided with two corresponding sampling tubes 12. The second motor 7 and the third motor 23 are independently powered by batteries. The sampling point is precisely controlled by the motor, and the sampling speed is fast.
[0028] Several friction protrusions are provided on the side wall of the sampling cylinder 12 to increase the friction between the side wall of the sampling cylinder 12 and the limiting ring 9 and the friction roller 10.
[0029] The fixing frame 5 is detachably connected to both sides of the mounting block 3 by bolts, which facilitates installation and maintenance.
[0030] The rotating disk 15 is provided with a limiting groove 14 that is adapted to the sampling tube 12. Two limiting grooves 14 are provided in parallel to the front and rear of the fixed frame 5, corresponding to the sampling tube 12. The lower end of the sampling tube 12 moves back and forth in the limiting groove 14.
[0031] The two ends of the support 6 are fixedly connected to the inner wall of the fermentation tank 1 by welding, and the bottom surface of the support 6 is provided with reinforcing ribs to improve the structural strength of the support 6.
[0032] In operation, the biological feed and fermentation inoculum to be fermented are fed into the fermentation tank through the feed pipe 2 for fermentation. The first motor 4 is started, and the output shaft of the first motor 4 drives the first rotating rod 17 to rotate. The first rotating rod 17 drives the fixed frame 5 on the mounting block 3 to rotate. The gear 8 outside the fixed frame 5 rotates with the fixed frame 5, and rolls circumferentially around the first rotating rod 17 along the toothed ring 11 on the inner wall of the fermentation tank 1. The gear 8 drives the reciprocating screw 21 on the second rotating rod 18 to rotate. Through the thread action, the moving block 20 on the reciprocating screw 21 drives the limiting ring 9 on the connecting plate 19 to move. The limiting ring 9 drives the sampling tube 12 to move along the limiting groove 14 on the rotating disk 15, so that the horizontal movement of the sampling tube 12 and the rotation of the circular shaft are carried out simultaneously, so as to uniformly mix the biological feed and fermentation inoculum in the fermentation tank 1 and improve the mixing efficiency of the biological feed.
[0033] During sampling, the sampling cylinder 12 is first moved to the designated horizontal position. Then, the third motor 23 is started. The output shaft of the third motor 23 drives the friction roller 10 to rotate. Due to the friction between the friction roller 10 and the outer surface of the sampling cylinder 12, the sampling cylinder 12 is driven to move vertically up and down within the limiting ring 9, thereby changing the position of the sampling cylinder 12 in the vertical direction. Then, the second motor 7 is started. The second motor 7 drives the spiral shaft 25 to rotate. The sealing plate 24 at the bottom of the spiral shaft 25 also rotates accordingly, closing or opening the opening 13. When the opening 13 is open, the biological feed enters the sampling cylinder through the opening 13. The spiral shaft 25 lifts the biological feed and discharges it through the second discharge pipe 22 at the top of the sampling cylinder 12, thus completing the sampling of the biological feed. The height of the sampling tube 12 inside the fermentation tank 1 can be precisely adjusted by the third motor 23. The motor drive increases the movement speed of the sampling tube 12 in the feed, improving sampling efficiency and ensuring that the movement of the sampling tube 12 is not affected by feed accumulation and blockage. The collected biological feed samples are more representative and the results are more accurate. After fermentation is completed, the feed is discharged through the first discharge pipe 16 on the fermentation tank 1, completing the fermentation process of the biological feed.
[0034] The biological feed fermentation device of this invention, with its stirring mechanism and driving mechanism for moving the sampling tube, enables the sampling tube to move horizontally and rotate simultaneously, improving the efficiency of uniform mixing of the biological feed and enhancing the representativeness of the collected samples. The horizontal position of the sampling tube is adjusted by a reciprocating screw, and the vertical position is adjusted by a friction roller. Then, the biological feed is sampled by rotating the spiral shaft, thus achieving sampling at different locations, improving the sampling efficiency of the biological feed, facilitating timely understanding of the biological feed's condition by staff, enabling appropriate judgments, and improving the fermentation quality of the biological feed.
[0035] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.
Claims
1. A biological feed fermentation device, comprising a fermentation tank (1), wherein a feed pipe (2) and a first discharge pipe (16) are connected to the fermentation tank (1), a support (6) is provided radially inside the fermentation tank (1), a first motor (4) is provided in the middle of the support (6), and a first rotating rod (17) is drivenly connected to the output shaft end of the first motor (4), characterized in that: The first rotating rod (17) extends into the fermentation tank (1) and is fixedly connected to the rotating disk (15) at the bottom of the fermentation tank (1). The first rotating rod (17) is provided with a stirring mechanism for mixing the biological feed inside the fermentation tank (1).
2. The biological feed fermentation device according to claim 1, characterized in that: The stirring mechanism includes a mounting block (3) connected to a first rotating rod (17) above the feed pipe (2). The mounting block (3) is horizontally connected to a fixed frame (5) on both sides. A second rotating rod (18) is provided inside the fixed frame (5). The two ends of the second rotating rod (18) are rotatably connected to the two side walls of the fixed frame (5) through a rotating shaft. The end of the second rotating rod (18) extends out of the fixed frame (5) and is connected to a gear (8). A toothed ring (11) that meshes with the gear (8) is provided on the inner wall of the fermentation tank (1). The second rotating rod (18) is fitted with a reciprocating screw (21), and a moving block (20) is fitted with the surface of the reciprocating screw (21). The moving block (20) moves back and forth within the fixed frame (5) as the reciprocating screw (21) rotates. The moving block (20) is connected to a connecting plate (19) outside the fixed frame (5). A limiting ring (9) is provided on the connecting plate (19). A sampling tube (12) is slidably connected to the inner wall of the limiting ring (9). A driving mechanism for driving the sampling tube (12) to move is provided on the limiting ring (9).
3. The biological feed fermentation device according to claim 2, characterized in that: The driving mechanism includes a third motor (23) fixedly installed below the fixed frame (5). The output shaft end of the third motor (23) is connected to a friction roller (10). The side wall surface of the friction roller (10) is in close contact with the sampling cylinder (12). The lower side wall surface of the sampling cylinder (12) is provided with an opening (13). A second discharge pipe (22) is connected to the upper side wall of the sampling cylinder (12). The inside of the sampling cylinder (12) is provided with a spiral shaft (25) for conveying feed up and down. The lower end of the spiral shaft (25) is provided with a sealing plate (24) for sealing the opening (13). The top of the sampling cylinder (12) is provided with a second motor (7). The output shaft end of the second motor (7) is connected to the spiral shaft (25).
4. The biological feed fermentation device according to claim 3, characterized in that: The second motor (7), the third motor (23) and the sampling tube (12) are respectively provided in two. The second motor (7) and the third motor (23) are powered independently by batteries.
5. The biological feed fermentation device according to claim 3, characterized in that: The sampling tube (12) has several friction protrusions on its side wall.
6. The biological feed fermentation device according to claim 2, characterized in that: The fixing frame (5) is detachably connected to both sides of the mounting block (3) by bolts.
7. The biological feed fermentation device according to claim 2, characterized in that: The rotating disk (15) is provided with a limiting groove (14) that is compatible with the sampling tube (12). Two limiting grooves (14) and two sampling tubes (12) are provided in parallel to each other in front and behind the fixed frame (5). The lower end of the sampling tube (12) moves back and forth in the limiting groove (14).
8. The biological feed fermentation device according to claim 1, characterized in that: The two ends of the support (6) are fixedly connected to the inner wall of the fermentation tank (1) by welding, and the bottom surface of the support (6) is provided with reinforcing ribs to improve the structural strength of the support (6).