Microbial fermentation tank with stirring function

Abstract

The utility model relates to a kind of microbial fermentation tank with stirring function, including jar body, the outside of jar body is covered with jacket, cooling cavity is formed between jacket and jar body, the bottom of jar body is equipped with discharge pipe, discharge pipe extends to outside through cooling cavity, the top of jar body is vertically equipped with hollow sleeve, hollow sleeve is rotatably connected with the top of jar body, stirring rod is fixedly connected on the outer wall of hollow sleeve in jar body, first drive mechanism for driving hollow sleeve rotation is equipped on jar body, shaft rod is slidably equipped in hollow sleeve, sealing plug for closing discharge pipe is fixedly connected to the lower end of shaft rod, sealing plug is coaxially arranged with discharge pipe, second drive mechanism for driving shaft rod up and down movement is equipped on jar body.The utility model can prevent raw materials from depositing in discharge port, thereby saving raw materials, and multiple sampling points are provided, so that overall sampling result is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of bio-fermentation technology, specifically to a microbial fermentation tank with a stirring function. Background Technology

[0002] Microbial fermentation refers to the process by which microorganisms, under suitable conditions, transform raw materials into products needed by humans through specific metabolic pathways.

[0003] Patent CN212128150U discloses a microbial fermentation tank with a stirring function. It solves the problem that most existing microbial fermentation tanks do not have a stirring function, which makes it impossible to fully ferment the raw materials in the tank and wastes resources. The tank is cooled by a cooling chamber on the outside of the tank.

[0004] This patent involves attaching a sealing jacket to the outside of the tank, creating a cooling chamber between the jacket and the tank body. The discharge port at the bottom passes through this cooling chamber to connect the inside and outside of the tank, resulting in a certain depth at the discharge port. Consequently, in actual use, some fermentation material at the bottom of the tank accumulates in the discharge port, preventing even fermentation. The proposed solution is to first empty and discard this portion of fermentation material from the discharge port before collecting the remaining material. However, this process leads to significant waste of raw materials over time. Furthermore, this patent only provides a sampling port at the top of the tank, which can only assess the uniformity of mixing at the top and cannot accurately determine whether the entire tank is completely uniform, affecting the accuracy of the sampling results. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a microbial fermentation tank with a stirring function, which prevents raw materials from settling into the discharge port, thereby saving raw materials. Furthermore, it sets up multiple sampling points to make the overall sampling results more accurate.

[0006] This utility model is achieved through the following technical solution: a microbial fermenter with stirring function, comprising a tank body, an outer sleeve covering the tank body, forming a cooling chamber between the sleeve and the tank body, a discharge pipe at the bottom of the tank body extending through the cooling chamber to the outside, a vertical hollow sleeve passing through the top of the tank body, the hollow sleeve being rotatably connected to the top of the tank body, a stirring rod fixedly connected to the outer wall of the hollow sleeve inside the tank body, a first driving mechanism for driving the hollow sleeve to rotate on the tank body, a shaft slidingly passing through the hollow sleeve, a sealing plug for sealing the discharge pipe fixedly connected to the lower end of the shaft, the sealing plug being coaxially arranged with the discharge pipe, and a second driving mechanism for driving the shaft to move up and down on the tank body.

[0007] As an optimization, the first drive mechanism includes a motor, a driving bevel gear, and a driven bevel gear. The driven bevel gear is fixed to the outer wall of the hollow sleeve located outside the tank body. The motor is fixed to the top of the tank body. The driving bevel gear is fixed to the output end of the motor and meshes with the driven bevel gear.

[0008] As an optimization, a support is fixedly connected to the top of the tank, and the hollow sleeve is rotatably connected to the support.

[0009] As an optimization, the stirring rod includes a vertical rod and multiple horizontal rods. The upper end of the vertical rod is fixedly connected to the outer wall of the hollow sleeve, and the multiple horizontal rods are evenly distributed along the axial direction of the vertical rod and fixedly connected to the vertical rod.

[0010] As an optimization, the second drive mechanism is a vertically arranged telescopic cylinder, which is fixed to the top of the tank. The telescopic end of the telescopic cylinder is fixed to the upper end of the shaft through a connecting rod.

[0011] As an optimization, the sealing plug includes a lower frustum, with the minor diameter surface of the lower frustum facing downwards. The diameter of the minor diameter surface of the lower frustum is smaller than the inner diameter of the discharge pipe, and the diameter of the major diameter surface of the lower frustum is larger than the inner diameter of the discharge pipe.

[0012] As an optimization, the sealing plug also includes an upper frustum, the minor diameter surface of which is fixedly connected to the lower end of the shaft, and the major diameter surface of which is fixedly connected to the major diameter surface of the lower frustum.

[0013] As an optimization, multiple sampling tubes are provided on the side wall of the tank, and the sampling tubes extend through the cooling cavity to the outside, with the multiple sampling tubes evenly distributed along the axial direction of the tank.

[0014] As an optimization, the tank includes a tank body and a top cover that is detachably mounted on top of the tank body, the top cover forming the top of the tank.

[0015] The beneficial effects of this utility model are as follows: This microbial fermenter uses a first drive mechanism to drive the hollow sleeve to rotate, thereby causing the stirring rod to stir the fermentation raw materials, improving fermentation efficiency and raw material uniformity.

[0016] Before adding raw materials, the tank can be driven by the second drive mechanism to move the shaft downward. Since the sealing plug and the discharge pipe are coaxial, the discharge port is closed by the downward movement of the sealing plug, preventing raw materials from depositing in the discharge port and causing waste.

[0017] The shaft is inserted into the hollow sleeve, optimizing the structural layout so that the rotation of the hollow sleeve and the up-and-down movement of the shaft do not interfere with or affect each other, resulting in a more compact structure and ensuring sufficient space for stirring and fermentation inside the tank.

[0018] The microbial fermenter is equipped with multiple sampling tubes in the tank body, which can be used to sample the fermentation material in different parts of the tank along the axial direction. The sampling results from each sampling point are then comprehensively analyzed and judged, which greatly improves the accuracy of the sampling results. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention (a schematic diagram of the sealing plug in its sealing state). Figure 2 This is a diagram showing the sealing plug in the open position. Figure 3 This is a front view of the present utility model; Figure 4 for Figure 1 Enlarged view of part A; As shown in the figure: 1. Tank body; 17. Top cover; 18. Tank body; 2. Jacket; 3. Cooling chamber; 4. Hollow sleeve; 5. First drive mechanism; 51. Motor; 52. Driving bevel gear; 53. Driven bevel gear; 6. Shaft; 7. Second drive mechanism; 71. Telescopic cylinder; 72. Connecting rod; 8. Sealing plug; 81. Lower truncated cone; 82. Upper truncated cone; 9. Stirring rod; 10. Cooling medium inlet pipe; 11. Cooling medium outlet pipe; 12. Sampling pipe; 13. Control valve; 14. Discharge pipe; 15. Support; 16. Feed pipe. Detailed Implementation

[0020] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0021] like Figures 1-4 As shown, a microbial fermenter with a stirring function includes a tank body 1, with a jacket 2 covering the outside of the tank body 1, forming a cooling chamber 3 between the jacket 2 and the tank body 1. A cooling medium inlet pipe 10 and a cooling medium outlet pipe 11 are fixedly connected to the jacket 2, both communicating with the cooling chamber 3. Cooling medium is introduced into the cooling chamber 3 through the cooling medium inlet pipe 10 and discharged through the cooling medium outlet pipe 11, thereby dissipating heat from the tank body 1 and preventing excessively high temperatures from affecting the normal fermentation process.

[0022] Preferably, a thermometer (not shown in the figure) is installed inside the tank 1 to monitor the internal fermentation temperature in real time.

[0023] A feed pipe 16 is fixedly connected to the upper part of the outer wall of the tank 1. The feed pipe 16 extends through the cooling chamber 3 to the outside, and raw materials are added into the tank 1 through the feed pipe 16. A discharge pipe 14 is provided at the bottom of the tank 1, and the discharge pipe 14 extends through the cooling chamber 3 to the outside. In this embodiment, the discharge pipe 14 is located at the center of the bottom of the tank 1, and the discharge pipe 14 is coaxial with the tank 1. The fermented material is discharged through the discharge pipe 14.

[0024] Control valves 13 are installed on the cooling medium inlet pipe 10, cooling medium outlet pipe 11, feed pipe 16 and discharge pipe 14 to control the opening and closing of each pipe.

[0025] A vertical hollow sleeve 4 is inserted through the top of the tank body 1. The hollow sleeve 4 is rotatably connected to the top of the tank body 1. A stirring rod 9 is fixed to the outer wall of the hollow sleeve 4 located inside the tank body 1. A first driving mechanism 5 is provided on the tank body 1 to drive the hollow sleeve 4 to rotate.

[0026] Specifically, the hollow sleeve 4 is disposed at the top center of the tank body 1, and the hollow sleeve 4 and the tank body 1 are coaxial. The first drive mechanism 5 includes a motor 51, a driving bevel gear 52, and a driven bevel gear 53. The driven bevel gear 53 is fixedly connected to the outer wall of the hollow sleeve 4 located outside the tank body 1, the motor 51 is fixedly mounted on the top of the tank body 1, and the driving bevel gear 52 is fixedly connected to the output end of the motor 51 and meshes with the driven bevel gear 53.

[0027] The motor 51 drives the active bevel gear 52 to rotate, which in turn drives the driven bevel gear 53 to rotate, thereby causing the hollow sleeve 4 to rotate, which in turn causes the stirring rod 9 to rotate and stir the raw materials, improving fermentation efficiency and raw material uniformity.

[0028] Preferably, a bracket 15 is fixedly connected to the top of the tank 1, and the hollow sleeve 4 is rotatably connected to the bracket 15. In this embodiment, the bracket 15 has an inverted U-shaped structure, and the two vertical ends of the bracket 15 are fixedly connected to the top of the tank 1. The upper end of the hollow sleeve 4 extends upward through the horizontal edge of the bracket 15. In this embodiment, the hollow sleeve 4 is rotatably connected to the top of the tank 1 and the bracket 15 via bearings, making the rotation more stable. The support of the hollow sleeve 4 by the two rotation points of the bracket 15 and the top of the tank 1 greatly enhances the stability of the hollow sleeve 4 during rotation.

[0029] Specifically, the stirring rod 9 includes a vertical rod and multiple horizontal rods. The upper end of the vertical rod is fixedly connected to the outer wall of the hollow sleeve 4, and the multiple horizontal rods are evenly distributed along the axial direction of the vertical rod and fixedly connected to it. To facilitate the connection of the upper end of the vertical rod, the upper end of the vertical rod is bent in this embodiment. To improve the stirring efficiency, multiple stirring rods 9 are evenly distributed on the circumferential outer wall of the hollow sleeve 4 in this embodiment.

[0030] A shaft 6 is slidably inserted inside the hollow sleeve 4. A sealing plug 8 that can seal the discharge pipe 14 is fixedly connected to the lower end of the shaft 6. The sealing plug 8 is coaxially arranged with the discharge pipe 14. A second driving mechanism 7 is provided on the tank body 1 to drive the shaft 6 to move up and down.

[0031] Specifically, the shaft 6 is coaxial with the tank body 1, and the length of the shaft 6 is greater than the length of the hollow sleeve 4. When the sealing plug 8 closes the discharge port, the upper end of the shaft 6 is still located outside the hollow sleeve 4. The second drive mechanism 7 is a vertically arranged telescopic cylinder 71, which is fixed to the top of the tank body 1. The telescopic end of the telescopic cylinder 71 is fixed to the upper end of the shaft 6 through a connecting rod 72.

[0032] In this embodiment, the telescopic cylinder 71 can be a hydraulic cylinder, an electric cylinder, or an electric push rod, making procurement convenient. The telescopic cylinder 71 extends and retracts, driving the shaft 6 to move up and down, which in turn moves the sealing plug 8 up and down. When the shaft 6 moves downwards, since the sealing plug 8 and the discharge pipe 14 are coaxial, the downward movement of the sealing plug 8 closes the discharge port, preventing raw material from accumulating in the discharge port and causing waste. When the shaft 6 moves upwards, the sealing plug 8 separates from the discharge port, thereby opening the discharge port.

[0033] Specifically, the sealing plug 8 includes an upper frustum 82 and a lower frustum 81. The minor diameter surface of the lower frustum 81 faces downwards, the minor diameter surface of the upper frustum 82 is fixedly connected to the lower end of the shaft 6, and the major diameter surface of the upper frustum 82 is fixedly connected to the major diameter surface of the lower frustum 81. The diameter of the minor diameter surface of the lower frustum 81 is smaller than the inner diameter of the discharge pipe 14, and the diameter of the major diameter surface of the lower frustum 81 is larger than the inner diameter of the discharge pipe 14.

[0034] The sealing plug 8 is inserted into the discharge pipe 14 through the lower frustum 81, thereby sealing the discharge pipe 14. Furthermore, the outer periphery of the lower frustum 81 is an inclined surface, allowing it to seal discharge pipes 14 of different diameters, thus enhancing its applicability. The inclined surface of the upper frustum 82 forms a slope, facilitating the sliding of raw materials and preventing material deposition on the sealing plug 8.

[0035] Preferably, the upper frustum 82 and the lower frustum 81 are integrally formed, which facilitates processing and provides higher strength.

[0036] Multiple sampling tubes 12 are provided on the side wall of the tank 1, extending through the cooling chamber 3 to the outside. The multiple sampling tubes 12 are evenly distributed along the axial direction of the tank 1. Control valves 13 are also installed on the sampling tubes 12. Through the multiple sampling tubes 12, samples of the fermentation material in different parts of the tank 1 along the axial direction can be taken separately. The sampling results from each sampling point are comprehensively analyzed and judged, thereby greatly improving the accuracy of the sampling results.

[0037] Preferably, the tank body 1 includes a tank body 18 and a top cover 17 detachably mounted on the top of the tank body 18, with the top cover 17 forming the top of the tank body 1. In this embodiment, the top cover 17 is fixed to the tank body 18 by bolts, facilitating disassembly and assembly. The hollow sleeve 4 is rotatably mounted at the center of the top cover 17. The motor 51, telescopic cylinder 71, and bracket 15 are all fixedly mounted on the top cover 17. By opening the top cover 17, the hollow sleeve 4 and shaft 6 can be removed from the tank body 18, facilitating maintenance and cleaning of the interior of the tank body 18, making it more convenient to use.

[0038] Working Principle: Before adding raw materials to tank 1, the telescopic cylinder 71 retracts, causing the shaft 6 to move downwards, thus inserting the sealing plug 8 into the discharge pipe 14 and sealing its port. Fermentation raw materials are then added to tank 1 through the feed pipe 16. The hollow sleeve 4 is rotated by the motor 51, causing the stirring rod 9 to stir the raw materials for fermentation, improving uniformity and efficiency. During fermentation, cooling medium is introduced into the cooling chamber 3 through the cooling medium inlet pipe 10 and discharged through the cooling medium outlet pipe 11, dissipating heat from tank 1 and preventing excessive temperature from affecting fermentation. During fermentation, samples are taken from different areas along the axial direction of tank 1 through the sampling pipes 12. The fermentation status is analyzed based on the sampling results. If the differences between areas are significant, stirring and fermentation continue until the results are satisfactory. After fermentation, the telescopic cylinder 71 extends, causing the shaft 6 to move upwards and opening the discharge pipe 14 port. The control valve 13 of the discharge pipe 14 is then opened to discharge the fermented material.

[0039] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A microbial fermentation tank with stirring function, comprising a tank body (1), a jacket (2) covering the outer side of the tank body (1), a cooling chamber (3) being formed between the jacket (2) and the outer wall of the tank body (1), and a discharge pipe (14) provided at the bottom of the tank body (1), the discharge pipe (14) extending through the cooling chamber (3) to the outside, characterized in that: A vertical hollow sleeve (4) is inserted through the top of the tank (1). The hollow sleeve (4) is rotatably connected to the top of the tank (1). A stirring rod (9) is fixed to the outer wall of the hollow sleeve (4) inside the tank (1). A first driving mechanism (5) is provided on the tank (1) to drive the hollow sleeve (4) to rotate. A shaft (6) is slidably inserted inside the hollow sleeve (4). A sealing plug (8) that can seal the discharge pipe (14) is fixed to the lower end of the shaft (6). The sealing plug (8) is coaxially arranged with the discharge pipe (14). A second driving mechanism (7) is provided on the tank (1) to drive the shaft (6) to move up and down.

2. The microbial fermenter with stirring function according to claim 1, characterized in that: The first drive mechanism (5) includes a motor (51), a drive bevel gear (52) and a driven bevel gear (53). The driven bevel gear (53) is fixed to the outer wall of the hollow sleeve (4) located outside the tank (1). The motor (51) is fixed to the top of the tank (1). The drive bevel gear (52) is fixed to the output end of the motor (51) and meshes with the driven bevel gear (53).

3. The microbial fermenter with stirring function according to claim 1, characterized in that: The top of the tank (1) is fixedly connected to a bracket (15), and the hollow sleeve (4) is rotatably connected to the bracket (15).

4. The microbial fermenter with stirring function according to claim 1, characterized in that: The stirring rod (9) includes a vertical rod and multiple horizontal rods. The upper end of the vertical rod is fixedly connected to the outer wall of the hollow sleeve (4), and the multiple horizontal rods are evenly distributed along the axial direction of the vertical rod and fixedly connected to the vertical rod.

5. The microbial fermenter with stirring function according to claim 1, characterized in that: The second drive mechanism (7) is a vertically arranged telescopic cylinder (71). The telescopic cylinder (71) is fixed on the top of the tank (1). The telescopic end of the telescopic cylinder (71) is fixed to the upper end of the shaft (6) through the connecting rod (72).

6. The microbial fermenter with stirring function according to claim 1, characterized in that: The sealing plug (8) includes a lower frustum (81), with the small diameter surface of the lower frustum (81) facing downwards. The diameter of the small diameter surface of the lower frustum (81) is smaller than the inner diameter of the discharge pipe (14), and the diameter of the large diameter surface of the lower frustum (81) is larger than the inner diameter of the discharge pipe (14).

7. The microbial fermenter with stirring function according to claim 6, characterized in that: The sealing plug (8) also includes an upper frustum (82), the small diameter surface of the upper frustum (82) is fixedly connected to the lower end of the shaft (6), and the large diameter surface of the upper frustum (82) is fixedly connected to the large diameter surface of the lower frustum (81).

8. The microbial fermenter with stirring function according to claim 1, characterized in that: The tank (1) has multiple sampling tubes (12) on its side wall. The sampling tubes (12) extend through the cooling chamber (3) to the outside. The multiple sampling tubes (12) are evenly distributed along the axial direction of the tank (1).

9. The microbial fermenter with stirring function according to claim 1, characterized in that: The tank (1) includes a tank body (18) and a top cover (17) detachably mounted on the top of the tank body (18), the top cover (17) forming the top of the tank body (1).

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