Fermenter impeller optimization device

Abstract

The utility model discloses fermentation tank stirring paddle optimization device, including the fermentation tank body, the upper portion of fermentation tank body is equipped with the jar cover, the upper portion of jar cover is equipped with the feed pipe, the bottom surface of fermentation tank body is equipped with the discharge pipe, and the inside of fermentation tank body is equipped with the height adjustable stirring mechanism, the height adjustable stirring mechanism includes the motor and the protection box, and the motor is connected with the bidirectional screw rod, and the bidirectional screw rod side surface is equipped with the stirring paddle that can move up and down, and the bidirectional screw rod is connected with the first deputy gear, and the protection box is rotatably equipped with the main gear and the outer tube, and the bidirectional screw rod rotates, and the stirring paddle moves down, and the outer tube drives the stirring paddle to rotate. The utility model has the function that the stirring paddle moves up and down, and the multiple positions of fermentation tank body are stirred, avoids the layered stirring of fermentation tank and influences the effect of mixed material quality.

Description

Technical Field

[0001] This utility model belongs to the field of air filtration technology, and in particular relates to an optimized device for agitator paddles in fermenters. Background Technology

[0002] A fermenter is an industrial device used for microbial fermentation. Its main body is typically a cylindrical structure made of stainless steel, with a volume of approximately 1 cubic meter. 3 Up to hundreds of m 3 In design and manufacturing, attention should be paid to a tight and reasonable structure. It should be able to withstand steam sterilization, have a certain degree of operational flexibility, minimize internal accessories (avoiding dead corners), have strong material and energy transfer performance, and be adjustable to facilitate cleaning, reduce contamination, be suitable for the production of various products, and reduce energy consumption.

[0003] Currently, fermentation tanks in practical applications use motors as the drive mechanism to rotate the agitator within the fermenter. The agitator mixes various additives. However, this type of agitator can cause stratification of materials with different particle sizes, with heavier materials settling at the bottom of the fermenter, affecting the mixing quality. To address these issues, an optimized agitator device for fermentation tanks is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an optimized device for the stirring paddle of a fermenter, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an optimized stirring device for fermentation tanks, comprising a fermentation tank body, a detachable tank cover on top of the fermentation tank body, a feed pipe above the tank cover, and a discharge pipe on the bottom surface of the fermentation tank body. The fermentation tank body contains a height-adjustable stirring mechanism. The height-adjustable stirring mechanism includes a motor and a protective box. The output end of the motor is fixedly connected to a bidirectional screw. The circumferential side of the bidirectional screw is provided with several vertically movable stirring paddles. A first auxiliary gear is fixedly connected to the circumferential side of the bidirectional screw. A main gear and an outer cylinder are rotatably mounted inside the protective box. The outer cylinder is sleeved on the outside of the bidirectional screw. When the bidirectional screw rotates, the stirring paddles move downwards, and the outer cylinder drives the stirring paddles to rotate.

[0007] Preferably, the bidirectional screw has two lifting blocks threadedly connected to its circumferential side. Several limiting blocks are fixedly connected to the circumferential side of the lifting blocks. A mounting base is fixedly connected to one surface of the limiting blocks. A slot is opened on one surface of the mounting base. An insert is installed in the slot. The insert is fixedly connected to the stirring paddle. Fixing holes are opened on both sides of the insert and the mounting base. Fixing components are provided in the fixing holes. Loosening the fixing components allows the stirring paddle to be disassembled and replaced.

[0008] Preferably, both the first and second auxiliary gears are arranged perpendicularly to the main gear and are meshed.

[0009] Preferably, the outer cylinder has several limiting grooves on its circumferential side, the limiting block slides in conjunction with the limiting grooves, and the surface of the stirring paddle has several guide grooves.

[0010] Preferably, two sealing strips are fixedly installed in the limiting groove. The sealing strips are made of rubber and are used to seal the bidirectional screw.

[0011] Preferably, the bidirectional screw is rotatably connected to the can lid, and the outer cylinder is rotatably connected to the protective box.

[0012] Preferably, the insert block is inserted into the slot, and the fixing member is threaded into the fixing hole.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model has the function of moving the stirring paddle up and down to stir multiple positions on the fermentation tank body, avoiding the stratification of the fermentation tank and affecting the mixing quality. Specifically, it is equipped with a bidirectional screw, an outer cylinder and lifting blocks. The motor drives the bidirectional screw to rotate, and the two moving blocks move up and down, thereby driving the stirring paddle to move. Through the meshing between gears, the outer cylinder rotates, and the outer cylinder further drives the stirring paddle to rotate, so that the stirring paddle can rotate and stir while moving up and down, avoiding the stratification phenomenon.

[0015] 2. This utility model has the function of replacing the stirring paddle, which is convenient for stirring different kinds of bacteria. Specifically, by setting a fixing part and a plug, the fixing part is loosened and pulled out from the fixing hole, and then the plug is pulled out from the slot to complete the disassembly and replacement of the stirring paddle.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;

[0022] Figure 5 This is an exploded structural diagram of the stirring paddle of this utility model;

[0023] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0024] The components represented by each number in the attached diagram are listed below: 1. Fermentation tank body; 2. Tank lid; 3. Motor; 4. Feed pipe; 5. Discharge pipe; 6. Protective box; 7. Bidirectional screw; 8. Outer cylinder; 9. Mounting base; 10. Stirring paddle; 11. Sealing strip; 12. Main gear; 13. First auxiliary gear; 14. Second auxiliary gear; 15. Slot; 16. Insert block; 17. Fixing hole; 18. Fixing component; 19. Guide channel; 20. Lifting block; 21. Limiting block. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0027] Please see Figures 1-6 As shown, this utility model is an optimized device for a fermenter stirring paddle, including a fermenter body 1, a detachable tank cover 2 on the top of the fermenter body 1, which facilitates the subsequent disassembly and replacement of the stirring paddle 10, a feed pipe 4 on the top of the tank cover 2, and a discharge pipe 5 on the bottom surface of the fermenter body 1. Valves (not shown in the figure, this is prior art and will not be described in detail in the text) are provided on the periphery of both the feed pipe 4 and the discharge pipe 5. The fermenter body 1 is equipped with a height-adjustable stirring mechanism. The fermenter body 1 uses a stirring system (motor 3, stirring paddle 10) to break up materials and enhance gas-liquid mixing. A ventilation system (sterile air input / CO2 exhaust) maintains the aerobic environment for microorganisms. The optimal temperature is adjusted by jacket or coil temperature control (cooling water / steam). Sensors monitor parameters such as pH and dissolved oxygen in real time and adjust them automatically. A circulation system eliminates local differences. Steam sterilization and sealing design ensure sterile conditions, ultimately achieving efficient fermentation (such as organic fertilizer in 15-20 days, yogurt in a few hours).

[0028] The height-adjustable stirring mechanism includes a motor 3 and a protective box 6. The output end of the motor 3 is fixedly connected to a bidirectional screw 7. The bidirectional screw 7 is rotatably connected to the tank cover 2 through a bearing seat. The circumferential side of the bidirectional screw 7 is provided with several vertically movable stirring paddles 10. The circumferential side of the bidirectional screw 7 is fixedly connected to a first auxiliary gear 13. The first auxiliary gear 13 and the second auxiliary gear 14 are both perpendicular to the main gear 12 and mesh with it. The main gear 12 and the outer cylinder 8 are rotatably arranged inside the protective box 6. The outer cylinder 8 is rotatably connected to the protective box 6 and is sleeved on the outside of the bidirectional screw 7. When the bidirectional screw 7 rotates, the stirring paddles 10 move downwards, and the outer cylinder 8 drives the stirring paddles 10 to rotate. The surface of the stirring paddles 10 is provided with several guide grooves 19, which can realize the functions of directional guidance of material flow, enhanced turbulent mixing, improved mass and heat transfer, and reduced dead zone deposition.

[0029] Two lifting blocks 20 are threadedly connected to the circumferential side of the bidirectional screw 7. Several limiting blocks 21 are fixedly connected to the circumferential side of the lifting blocks 20. Several limiting grooves are opened on the circumferential side of the outer cylinder 8. Two sealing strips 11 are fixedly installed in the limiting grooves. The sealing strips 11 are made of rubber. While sealing the bidirectional screw 7, the sealing strips 11 can also not affect the movement of the limiting blocks 21, thus avoiding affecting the threaded engagement between the bidirectional screw 7 and the lifting blocks 20. The limiting blocks 21 slide with the limiting grooves. A mounting base 9 is fixedly connected to one surface of the limiting block 21. A slot 15 is opened on one surface of the mounting base 9. An insert block 16 is installed in the slot 15. The insert block 16 is inserted into the slot 15 and fixedly connected to the stirring paddle 10. Fixing holes 17 are opened on both sides of the insert block 16 and the mounting base 9. Fixing parts 18 are installed in the fixing holes 17. The fixing parts 18 are threadedly engaged with the fixing holes 17. Loosening the fixing parts 18 allows the stirring paddle 10 to be disassembled and replaced.

[0030] Working principle: The material is fed into the fermentation tank body 1 through the feed pipe 4. The valves of the feed pipe 4 and the discharge pipe 5 are closed. The motor 3 is started, which drives the bidirectional screw 7 to rotate. The two lifting blocks 20 move up and down in opposite directions, which in turn drives the stirring paddle 10 to rotate through the limit block 21. At the same time, the bidirectional screw 7 drives the first auxiliary gear 13 to rotate. The first auxiliary gear 13 meshes with the main gear 12, causing the main gear 12 to rotate. The main gear 12 further meshes with the second auxiliary gear 14, causing the second auxiliary gear 14 to drive the outer cylinder 8 to rotate. The outer cylinder 8 further drives the stirring paddle 10. The rotation causes the stirring paddle 10 to move up and down, stirring multiple locations inside the fermentation tank body 1. Furthermore, the guide channel 19 optimizes the material flow path, reducing ineffective "circulating flow" and "turbulent dissipation," allowing the stirring power to be used more efficiently for material mixing and mass and heat transfer. When it is necessary to replace the stirring paddle 10 according to different types of bacteria, disassemble the fermentation tank body 1, then turn the fixing part 18 counterclockwise to pull the fixing part 18 out of the fixing hole 17, and then pull the insert 16 out of the slot 15 to complete the disassembly of the stirring paddle 10, and then replace it. After fermentation is completed, open the valve of the discharge pipe 5 to discharge the material.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fermentation tank stirring paddle optimization device, comprising a fermentation tank body (1), a detachable tank cover (2) above the fermentation tank body (1), a feed pipe (4) above the tank cover (2), and a discharge pipe (5) on the bottom surface of the fermentation tank body (1), characterized in that: The fermenter body (1) is equipped with a height-adjustable stirring mechanism; The height-adjustable stirring mechanism includes a motor (3) and a protective box (6). The output end of the motor (3) is fixedly connected to a bidirectional screw (7). The circumferential side of the bidirectional screw (7) is provided with several stirring paddles (10) that can move up and down. The circumferential side of the bidirectional screw (7) is fixedly connected to a first auxiliary gear (13). The protective box (6) is rotatably provided with a main gear (12) and an outer cylinder (8). The outer cylinder (8) is sleeved on the outside of the bidirectional screw (7). When the bidirectional screw (7) rotates, the stirring paddles (10) move downwards, and the outer cylinder (8) drives the stirring paddles (10) to rotate.

2. The fermenter stirring paddle optimization device according to claim 1, characterized in that: The bidirectional screw (7) has two lifting blocks (20) threadedly connected to its circumferential side. Several limiting blocks (21) are fixedly connected to the circumferential side of the lifting blocks (20). A mounting base (9) is fixedly connected to one surface of the limiting block (21). A slot (15) is opened on one surface of the mounting base (9). An insert (16) is installed in the slot (15). The insert (16) is fixedly connected to the stirring paddle (10). Fixing holes (17) are opened on both sides of the insert (16) and the mounting base (9). Fixing members (18) are provided in the fixing holes (17). The stirring paddle (10) can be disassembled and replaced by loosening the fixing members (18).

3. The fermenter stirring paddle optimization device according to claim 1, characterized in that: The first auxiliary gear (13) and the second auxiliary gear (14) are both perpendicular to the main gear (12) and mesh with each other.

4. The fermenter stirring paddle optimization device according to claim 2, characterized in that: The outer cylinder (8) has several limiting grooves on its circumferential side, and the limiting block (21) slides in cooperation with the limiting groove. The surface of the stirring paddle (10) has several guide grooves (19).

5. The fermenter stirring paddle optimization device according to claim 4, characterized in that: Two sealing strips (11) are fixedly installed in the limiting groove. The sealing strips (11) are made of rubber and seal the bidirectional screw (7).

6. The fermenter stirring paddle optimization device according to claim 1, characterized in that: The bidirectional screw (7) is rotatably connected to the can lid (2), and the outer cylinder (8) is rotatably connected to the protective box (6).

7. The fermenter stirring paddle optimization device according to claim 2, characterized in that: The insert (16) is inserted into the slot (15), and the fixing member (18) is threaded into the fixing hole (17).

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