A microbial fermentation agitator with convenient disassembly and assembly

Abstract

The utility model discloses a convenient disassembly and assembly's microbial fermentation stirrer, including fixed disc and fixed arm. The utility model discloses through the lock formula movable wheel can conveniently move whole frame body to the specified position of specified fermentation tank, then through adjusting the position of moving arm can make sealed inner ring insert to the jar body inner wall realizes the sealing operation when with jar body assembly, and the clamping outer ring can be clamped fastening with jar body outer wall, and then guarantee the structural stability when assembling, facilitate the use of more stable follow -up, then through motor and stirring shaft can normally realize the stirring operation of microbial fermentation, and the same reason after using, through reverse operation can quickly separate stirring shaft and jar body to facilitate the maintenance and cleaning operation of personnel, whole adopts movable and detachable design to promote the use flexibility of structure, facilitate more practical use, has the advantages of convenient disassembly, flexible use, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of microbial fermentation technology, and more specifically, to a microbial fermentation stirrer that is easy to disassemble and assemble. Background Technology

[0002] Fermentation tanks are very common equipment in the food processing, pharmaceutical, and microalgae energy industries. A fermentation tank refers to an industrial device used for microbial fermentation. Its main body is generally a cylindrical column made of stainless steel, with a volume ranging from one to several hundred cubic meters. Fermentation often has temperature requirements, so heating or cooling devices are installed outside the fermentation tank. This is typically achieved by installing a jacket around the fermentation tank or by installing heat exchange coils inside and outside the tank. Hot and cold medium inlets and outlets are located on the jacket or heat exchange coils. Through heat exchange between the hot medium and the outer wall of the fermentation tank, the internal fermentation temperature is maintained at a suitable level. To increase the dissolved oxygen content in the fermentation broth, an agitator with impeller blades is installed inside the fermentation tank. The agitation action of the impeller blades allows more oxygen to dissolve into the fermentation broth, accelerating the fermentation process.

[0003] The existing publicly available technology, application number CN201921617156.9, describes a novel microbial fermenter, comprising a tank body, a tank cover, a bearing support, a motor, a pulley, and a stirrer. The tank body is equipped with a sampling tube, a cooling water inlet, a cooling water outlet, a thermometer interface, a pressure gauge interface, a thermocouple interface, a ventilation pipe, and a discharge port. The tank cover has a manhole, a sight glass, a feed inlet, a replenishment port, and an exhaust port. A hole for a second shaft to pass through is opened in the middle of the tank cover. A bottom bearing is installed inside the bottom of the tank body. The first and second shafts in the middle of the pulley are connected by a coupling. A defoamer and a stirrer are installed on the second shaft, and the bottom end of the second shaft is connected to the bottom bearing. The two ends of the stirrer's connecting member are cylinders, with two mirror-image truncated cones in the middle. First blades are connected to each end of the connecting member, and second blades are connected between corresponding first blades.

[0004] However, the above-mentioned patents still have certain drawbacks in use: most of the existing agitators are fixed together with the fermentation tank, which makes it difficult to install, remove and maintain the agitator, and makes it more complicated and cumbersome to use. The overall flexibility of use is not very good, and there is room for improvement.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a microbial fermentation stirrer that is easy to disassemble and assemble, possessing the advantages of convenient disassembly, flexible use, and strong practicality, thereby solving the problems mentioned in the background technology.

[0007] (II) Technical Solution To achieve the aforementioned advantages of convenient disassembly, flexible use, and strong practicality, the specific technical solution adopted by this utility model is as follows: A microbial fermentation stirrer that is easy to disassemble and assemble includes a fixed plate and a fixed arm. Fixed blocks are symmetrically welded to both sides of the fixed plate. Movable arms are symmetrically installed at the bottom of the fixed blocks. Fixed arms are sleeved around the outer periphery of the movable arms. A sealing inner ring is installed at the middle of the bottom of the fixed plate. Two adjusting grooves are symmetrically opened on the surface of the fixed plate on the sealing inner ring. A sliding rod is installed inside the adjusting groove. A movable block is slidably connected to the surface of the sliding rod. A clamping outer ring is fixedly installed at the bottom of the movable block. Sealing gaskets are installed on the surface of the clamping outer ring and the surface of the sealing inner ring. A limit plate is fixedly installed at the top of the movable block.

[0008] Furthermore, positioning holes are provided on the surface of the limiting plate, the surface of the fixed plate, the surface of the moving arm, and the surface of the fixed arm, and the positioning holes are locked by fasteners.

[0009] Furthermore, a motor is installed at the top center of the fixed plate, and one end of the motor passes through one side of the sealing inner ring and is connected to the stirring shaft.

[0010] Furthermore, several sets of lockable casters are symmetrically installed at the bottom of the fixed arm.

[0011] Furthermore, the clamping outer ring has a semi-circular structure.

[0012] Furthermore, the distance between the moving arms is greater than the diameter of the microbial fermentation tank.

[0013] Furthermore, the maximum upward movement of the stirring shaft is greater than the height of the microbial fermentation tank.

[0014] Furthermore, a cavity is provided inside the fixed arm for the movement of the movable arm.

[0015] (III) Beneficial Effects Compared with the prior art, this utility model provides a microbial fermentation stirrer that is easy to disassemble and assemble, and has the following beneficial effects: This invention utilizes lockable casters to easily move the entire frame to a designated position on a fermentation tank. Adjusting the position of the moving arm allows the inner sealing ring to be inserted into the tank's inner wall for sealing during assembly. Simultaneously, the outer clamping ring secures itself to the tank's outer wall, ensuring structural stability during assembly and facilitating subsequent stable use. The motor and stirring shaft then enable normal microbial fermentation. After use, the stirring shaft can be quickly separated from the tank via reverse operation, facilitating maintenance and cleaning. The overall design is movable and detachable, enhancing structural flexibility and practicality. It offers advantages such as easy disassembly, flexible use, and high practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0017] Figure 1 This is a schematic diagram of the structure of a microbial fermentation stirrer that is easy to disassemble and assemble according to this utility model; Figure 2 This is a schematic diagram of the clamping outer ring of this utility model; Figure 3 This is a top view of the fixed plate of this utility model; Figure 4 This is a schematic diagram of the structure of the movable block of this utility model.

[0018] In the picture: 1. Fixed plate; 2. Motor; 3. Sealing inner ring; 4. Stirring shaft; 5. Limiting plate; 6. Moving block; 7. Slide rod; 8. Fixed block; 9. Moving arm; 10. Positioning hole; 11. Fixed arm; 12. Lockable moving wheel; 13. Clamping outer ring; 14. Sealing gasket; 15. Adjustment groove. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a microbial fermentation stirrer that is easy to disassemble and assemble is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a microbial fermentation stirrer for easy disassembly and assembly according to an embodiment of the present invention includes a fixed plate 1 and a fixed arm 11. Fixed blocks 8 are symmetrically welded to both sides of the fixed plate 1. Movable arms 9 are symmetrically installed at the bottom of the fixed blocks 8. The fixed arms 11 are sleeved around the outer periphery of the movable arms 9. A sealing inner ring 3 is installed at the middle of the bottom of the fixed plate 1. Two adjusting grooves 15 are symmetrically opened on the surface of the sealing inner ring 3 on the surface of the fixed plate 1. A sliding rod 7 is installed inside the adjusting groove 15. A movable block 6 is slidably connected to the surface of the sliding rod 7. A clamping outer ring 13 is fixedly installed at the bottom of the movable block 6. Sealing gaskets 14 are installed on the surface of the clamping outer ring 13 and the surface of the sealing inner ring 3. A limiting plate 5 is fixedly installed at the top of the movable block 6. The sealing inner ring 3 is fixed at the middle of the bottom of the fixed plate 1 by bolts or adhesive. The sealing inner ring 3 is an annular structure, made of corrosion-resistant rubber or stainless steel with a rubber sealing layer. Its outer diameter matches the inner diameter of the fermenter and can be inserted into the inner wall of the top opening of the fermenter. The sealing gasket 14 is made of silicone rubber, with a temperature resistance of -20-120℃, suitable for the temperature range of microbial fermentation. When the inner sealing ring 3 is inserted into the tank wall, the sealing gasket 14 is compressed and deformed, filling the gap between the inner ring and the tank wall, achieving a "tank-to-tank-outside" seal, preventing leakage of fermentation liquid and the intrusion of external bacteria. On the surface of the fixing plate 1, symmetrical adjustment grooves 15 are formed on both sides of the inner sealing ring 3. The adjustment grooves 15 are rectangular through grooves, with a length adapted to the adjustment range of the fermenter diameter. Solid sliding rods 7 are welded inside the grooves. The metal rod is chrome-plated to reduce friction. The sliding rod 7 is connected to the moving block 6, a rectangular metal block that fits with the adjusting groove 15 with a clearance. The moving block 6 can slide freely along the sliding rod 7. The bottom is fixed with bolts to clamp the outer ring 13. The sealing inner ring 3 is inserted into the inner wall of the tank and is sealed on the inside. The clamping outer ring 13 hugs the outer wall of the tank and is clamped on the outside, forming a "double fixing" structure. The inner sealing prevents the fermentation liquid from leaking and the contamination by miscellaneous bacteria. The outer clamping ensures the stable connection between the fixed plate 1 and the fermentation tank and prevents the fixed plate 1 from shifting during stirring.

[0022] like Figure 1 , Figure 3 and Figure 4As shown, positioning holes 10 are provided on the surfaces of the limiting plate 5, the fixed plate 1, the moving arm 9, and the fixed arm 11. These positioning holes 10 are locked by fasteners. The positioning holes 10 are circular through holes with diameters adapted to fasteners such as bolts or pins, and are evenly distributed at the following locations: Surface of the limiting plate 5: Corresponding one-to-one with the positioning holes 10 on the surface of the fixed plate 1, used to lock the moving block 6 and clamp the outer ring 13; Surface of the moving arm 9: Evenly distributed along its length, corresponding to the positioning holes 10 on the surface of the fixed arm 11, used to lock the moving arm 9 and the height of the fixed plate 1; Surface of the fixed plate 1: Opening around the adjusting groove 15, cooperating with the positioning holes 10 of the limiting plate 5; Surface of the fixed arm 11: Opening at the top position, cooperating with the positioning holes 10 of the moving arm 9; When locked, the fasteners pass through the two aligned sets of positioning holes 10. For example, the positioning holes 10 of the movable arm 9 and the fixed arm 11 are fixed with nuts or pins to ensure that the position is not loose. The height locking of the movable arm 9 and the position locking of the clamping outer ring 13 are carried out simultaneously. First, the movable arm 9 is adjusted so that the stirring shaft 4 extends into the fermentation tank to a suitable depth, and the positioning holes 10 of the movable arm 9 and the fixed arm 11 are locked. Then, the movable block 6 is slid so that the clamping outer ring 13 hugs the tank wall, and the positioning holes 10 of the limit plate 5 and the fixed plate 1 are locked. The double locking ensures the stability of the overall structure. The locking of multiple sets of positioning holes 10 ensures that the stirrer has no displacement or loosening during operation, avoiding the displacement of the stirring shaft 4 and the failure of the seal due to structural loosening, thus reducing the failure rate. The uniform distribution of the positioning holes 10 makes the adjustment of the height and clamping position precise and controllable, avoiding errors caused by manual estimation, ensuring stable stirring effect, repeatable fermentation process, and reducing batch-to-batch differences.

[0023] like Figure 1 As shown, a motor 2 is installed at the top center of the fixed plate 1. One end of the motor 2 passes through the inner sealing ring 3 and is connected to the stirring shaft 4. The motor 2 is mounted at the top center of the fixed plate 1 via a bracket, such as a geared motor 2. The bracket (not shown) is a metal frame, welded or bolted to the fixed plate 1. The output end of the motor 2 is vertically downward, passing through the center hole of the fixed plate 1 and the center hole of the inner sealing ring 3. A sealed bearing is installed at the penetration point. The inner ring of the bearing is interference-fitted with the output shaft of the motor 2, and the outer ring is fixed to the inner sealing ring 3. The sealed bearing ensures the free rotation of the output shaft of the motor 2 while preventing the fermentation liquid from flowing out of the inner sealing ring 3. Leakage at the penetration point; the output end of motor 2 is connected to the top of stirring shaft 4 via a coupling. Stirring shaft 4 is a solid stainless steel rod, and stirring blades, such as paddle or turbine types, can be installed on its surface as needed. The material of the stirring blades is the same as that of stirring shaft 4, and the surface is polished to eliminate dead corners, making it easy to clean and preventing microbial residue; the coaxiality of the output shaft of motor 2 and stirring shaft 4 ensures that there is no radial runout when stirring shaft 4 rotates, avoiding collision between stirring blades and the inner wall of fermentation tank; the length design of stirring shaft 4 places the stirring blades in the middle and lower part of fermentation tank, and the stirring range covers more than 80% of the fermentation liquid in the tank, ensuring uniform stirring.

[0024] like Figure 1As shown, several sets of lockable casters 12 are symmetrically installed at the bottom of the fixed arm 11. Typically, four sets are distributed at the four corners of the bottom of the fixed arm 11 and secured to the pre-drilled mounting holes at the bottom of the fixed arm 11 with bolts to prevent the wheels from loosening during operation. The lockable casters 12 are made of rubber, which is wear-resistant and shock-absorbing. They have a built-in foot-operated brake mechanism. When unlocked, the wheels can roll freely, making it easy to push the frame to align with the fermentation tank. When locked, the brake pads are tightly fitted to the wheels to prevent the frame from moving during stirring. The symmetrical distribution of the lockable casters 12 ensures even force distribution on the frame, preventing tilting during pushing and facilitating precise alignment with the fermentation tank opening. After the brake is locked, the frame remains stationary during stirring, ensuring the coaxiality of the stirring shaft 4 during rotation and preventing uneven stirring or damage to the fermentation tank.

[0025] like Figure 1 and Figure 2 As shown, the clamping outer ring 13 has a semi-circular structure and is a semi-circular arc-shaped metal plate with an anti-slip rubber pad attached to the inner wall. Each set of moving blocks 6 corresponds to a set of semi-circular clamping outer rings 13. Two sets of semi-circular structures can be spliced ​​together to form a complete circle, which is adapted to the outer diameter of the fermentation tank. The top of the moving block 6 is welded with a limiting plate 5, a rectangular metal plate with a size larger than the width of the adjustment groove 15, which is used to restrict the moving block 6 from sliding out of the adjustment groove 15. At the same time, the limiting plate 5 has positioning holes 10 on its surface. After aligning with the positioning holes 10 on the surface of the fixed plate 1, the position of the moving block 6 is locked by fasteners. The semi-circular structure design allows the clamping outer ring 13 to be inserted from the side of the fermentation tank without having to be clipped from the top down, further improving the ease of disassembly.

[0026] like Figure 1 As shown, the spacing between the movable arms 9 is greater than the diameter of the microbial fermenter, ensuring that the fermenter can pass between the two sets of movable arms 9 without disassembling the movable arms 9 to align with the tank opening.

[0027] like Figure 1 As shown, the maximum upward movement of the stirring shaft 4 is greater than the height of the microbial fermentation tank. The length design of the internal cavity of the fixed arm 11 ensures that the maximum adjustment stroke of the moving arm 9 meets the requirement that "the maximum upward movement of the stirring shaft 4 is greater than the height of the microbial fermentation tank". That is, when the moving arm 9 is moved to the highest position, the stirring shaft 4 can be completely removed from the fermentation tank, which facilitates subsequent disassembly, cleaning and maintenance.

[0028] like Figure 1As shown, the fixed arm 11 has a cavity inside for the movement of the movable arm 9. The fixed plate 1 is the core load-bearing component of the entire agitator. Fixed blocks 8 are fully welded to its two sides along the axis of symmetry. The fixed blocks 8 are rectangular metal blocks, and the movable arm 9 is fixed to the bottom by bolts or welding. The movable arm 9 is a solid metal rod with a chrome-plated surface for friction reduction and rust prevention. It extends vertically downwards and is fitted with the fixed arm 11. The fixed arm 11 is a hollow metal cylinder with an internal cavity. The inner diameter of the cavity is clearance-fitted with the outer diameter of the movable arm 9. The length of the fixed arm 11 is adapted to the height range of the fermentation tank. The inner wall of the internal cavity is polished to ensure the smooth movement of the movable arm 9. The movable arm 9 can slide smoothly up and down along the cavity, allowing for height adjustment of the fixed plate 1. The clearance fit between the movable arm 9 and the fixed arm 11 ensures no radial offset during sliding, preventing the fixed plate 1 from tilting and causing the stirring shaft 4 to collide with the inner wall of the fermentation tank. The hollow structure of the fixed arm 11 reduces the overall weight and provides stable guidance for the movable arm 9. Alignment: Release the brake on the lockable movable wheel 12, push the frame to the side of the fermentation tank, positioning the fermentation tank between the two sets of fixed arms 11, aligning the sealing inner ring 3 at the bottom of the fixed plate 1 with the tank opening, and lock the brake. Height adjustment: Loosen the fasteners on the positioning holes 10 of the movable arm 9 and the fixed arm 11, and move downwards... Slide the movable arm 9 so that the inner sealing ring 3 is inserted into the inner wall of the fermenter, and the stirring shaft 4 extends into the tank to a suitable depth. The stirring blades are located in the lower middle part. Lock the movable arm 9 and the positioning hole 10 of the fixed arm 11. Clamping and fixing: Loosen the fasteners of the limiting plate 5 and the positioning hole 10 of the fixed plate 1, slide the movable block 6 along the slide rod 7 so that the two sets of semi-circular clamping outer rings 13 hug the outer wall of the fermenter, and the sealing gasket 14 fits against the tank wall. Align the positioning hole 10 of the limiting plate 5 and the fixed plate 1, and lock the fasteners. Stirring operation: Start the motor 2, adjust the speed to the fermentation requirements, and the stirring shaft 4 drives the blades to rotate to carry out microbial fermentation stirring. During the process, through The sealing inner ring 3 and the clamping outer ring 13 ensure sealing and stability; disassembly and maintenance: after fermentation, turn off the motor 2, loosen the positioning holes 10 of the limit plate 5 and the fixed plate 1, and loosen the clamping outer ring 13 by sliding the moving block 6; loosen the positioning holes 10 of the moving arm 9 and the fixed arm 11, and move the moving arm 9 upward to completely remove the stirring shaft 4 from the fermentation tank; loosen the lockable moving wheel 12, push the frame away, and clean the stirring shaft 4 and the blades; the fermentation tank or the main body of the mixer does not need to be disassembled throughout the process, and disassembly can be completed simply by loosening the fasteners of the positioning holes 10, which solves the pain point of "difficult disassembly and long time consumption" of traditional integrated mixers and improves maintenance efficiency.

[0029] Working Principle: In actual use, personnel can easily move the entire frame structure by releasing the brakes on the lockable moving wheels 12, pushing it to the area where the microbial fermentation tank is located, positioning the fermentation tank between the two sets of fixed arms 11. Then, by releasing the moving arm 9, the fixed plate 1 covers the top of the fermentation tank. At this time, the sealing inner ring 3 at the bottom of the fixed plate 1 can be inserted into the inner wall of the fermentation tank, while the outer side of the fermentation tank can be fixed by the symmetrically arranged clamping outer rings 13, thus ensuring the connection effect between the structure and the fermentation tank. The sealing inner ring 3 ensures the sealing of the connection with the tank body, while the clamping outer ring 13 ensures the stability of the connection, facilitating subsequent use. Then, materials can be added through the pre-set pipes on the tank body. Then, the operation of the motor 2 drives the stirring shaft 4 to rotate, thereby realizing the stirring operation of microbial fermentation, which is convenient for better use. The device as a whole has the advantages of easy disassembly, flexible use, and strong practicality.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microbial fermentation stirrer that is easy to disassemble and assemble, comprising a fixed plate (1) and a fixed arm (11), characterized in that, Fixed blocks (8) are symmetrically welded to both sides of the fixed disk (1). Movable arms (9) are symmetrically installed at the bottom of the fixed blocks (8). Fixed arms (11) are fitted around the outer periphery of the movable arms (9). A sealing inner ring (3) is installed at the middle of the bottom of the fixed disk (1). Two adjusting grooves (15) are symmetrically opened on the surface of the fixed disk (1) of the sealing inner ring (3). A sliding rod (7) is installed inside the adjusting groove (15). A movable block (6) is slidably connected to the surface of the sliding rod (7). A clamping outer ring (13) is fixedly installed at the bottom of the movable block (6). A sealing gasket (14) is installed on the surface of the clamping outer ring (13) and the surface of the sealing inner ring (3). A limit plate (5) is fixedly installed at the top of the movable block (6).

2. The microbial fermentation stirrer that is easy to disassemble and assemble according to claim 1, characterized in that, Positioning holes (10) are provided on the surface of the limiting plate (5), the surface of the fixed plate (1), the surface of the moving arm (9), and the surface of the fixed arm (11), and the positioning holes (10) are locked by fasteners.

3. The microbial fermentation stirrer for easy disassembly and assembly according to claim 1, characterized in that, A motor (2) is installed at the top center of the fixed plate (1). One end of the motor (2) passes through the sealing inner ring (3) and is connected to the stirring shaft (4).

4. A microbial fermentation stirrer that is easy to disassemble and assemble according to claim 1, characterized in that, Several sets of lockable casters (12) are symmetrically installed at the bottom of the fixed arm (11).

5. A microbial fermentation stirrer that is easy to disassemble and assemble according to claim 1, characterized in that, The clamping outer ring (13) has a semi-circular structure.

6. A microbial fermentation stirrer that is easy to disassemble and assemble according to claim 1, characterized in that, The spacing between the movable arms (9) is greater than the diameter of the microbial fermentation tank.

7. A microbial fermentation stirrer that is easy to disassemble and assemble according to claim 3, characterized in that, The maximum upward movement of the stirring shaft (4) is greater than the height of the microbial fermentation tank.

8. A microbial fermentation stirrer that is easy to disassemble and assemble according to claim 1, characterized in that, The fixed arm (11) has a cavity inside for the moving arm (9) to move.

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