Strain fermentation tank

Abstract

The invention discloses a strain fermentation tank, and belongs to the field of strain fermentation tanks, the strain fermentation tank comprises a fermentation tank main body and a top cover buckled with the fermentation tank main body, the top cover is provided with a feed pipe, the outer wall of the fermentation tank main body is in through connection with a discharge pipe, and the outer wall of the fermentation tank main body is fixedly provided with support legs; the inner bottom wall of the fermentation tank main body is rotatably connected with a shaft rotating rod through a waterproof bearing, the outer wall of the shaft rotating rod is fixedly connected with a spiral blade used for upwards moving strains at the bottom of the fermentation tank main body, and a stirring assembly is connected between the fermentation tank main body and the shaft rotating rod; the stirring assembly comprises a fixing plate, a stirring rod, stirring blades, a gear disc and a clamping tooth ring, the fixing plate is fixedly installed on the outer wall of the shaft rotating rod, the stirring rod is rotationally connected with the fixing plate through a bearing, the stirring blades are fixedly installed on the outer wall of the stirring rod, the gear disc is fixedly installed at the upper end of the stirring rod, and the clamping tooth ring is fixedly installed on the inner wall of the fermentation tank body. And the gear is meshed with the gear disc. According to the invention, the strain fermentation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of microbial fermentation tank technology, and more particularly to a microbial fermentation tank. Background Technology

[0002] In the field of microbial fermentation, fermenters are crucial equipment, and their performance directly affects the quality and efficiency of microbial fermentation. They utilize the principles of biological fermentation to provide optimal nutrition, pH, temperature, and oxygen supply for mycelial growth, enabling the mycelium to grow rapidly and multiply quickly, reaching a certain number of mycelial pellets in a short period of time to complete a fermentation cycle.

[0003] Chinese Patent Publication No. CN118222380B discloses "A Microbial Fermentation Tank". Its technical solution includes a fermentation tank body, a raw material screening tank, an oxygen generator, a base, and a stirring and screening mechanism. The base is installed at the bottom of the fermentation tank body, and raw material screening tanks are located on the left and right sides of the top of the fermentation tank body. An oxygen generator is installed on the back of the fermentation tank body, and a servo motor is supported at the center of the top of the fermentation tank body via a motor mount. The servo motor is connected to the stirring and screening mechanism.

[0004] This fermentation tank uses a servo motor to drive a drive shaft, which in turn drives a meshing main shaft gear and a driven shaft gear to rotate. This, in turn, rotates the main shaft stirring roller, stirring blades, and driven shaft stirring roller, which are connected to the main shaft gear and the driven shaft gear. This process stirs the raw materials and the inoculum (microorganisms), improving the efficiency of the raw materials fermenting inside the fermentation tank.

[0005] However, the overall stirring efficiency is still insufficient, making it difficult for the inoculum to ferment more fully; moreover, the inoculum is prone to sticking to the walls during the process, further reducing the fermentation efficiency; finally, the cleaning and maintenance of the entire fermentation tank in the later stage is also a problem. For this reason, we provide an inoculum fermentation tank. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a microbial fermentation tank.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A microbial fermentation tank includes a fermentation tank body and a top cover that is fastened to it. The top cover is provided with a feed pipe for adding microbial culture into the interior of the fermentation tank body. The outer wall of the fermentation tank body is connected to a discharge pipe for discharging the microbial culture after fermentation. Support legs are fixedly installed on the outer wall of the fermentation tank body. A shaft is rotatably connected to the inner bottom wall of the fermentation tank body through a waterproof bearing. A spiral blade is fixedly connected to the outer wall of the shaft for moving the microbial culture at the bottom of the fermentation tank body upward. A stirring assembly is provided inside the fermentation tank body. The stirring assembly includes a fixed plate, a stirring rod, stirring blades, a gear disk, and a retaining ring. The fixed plate is fixedly installed on the outer wall of the rotating shaft. The stirring rod is rotatably connected to the fixed plate through a bearing. The stirring blades are fixedly installed on the outer wall of the stirring rod. The gear disk is fixedly installed on the upper end of the stirring rod. The retaining ring is fixedly installed on the inner wall of the fermenter body and meshes with the gear disk.

[0008] Preferably, a quick-assembly / disassembly mechanism is provided between the fermentation tank body and the top cover; The quick-assembly and disassembly mechanism includes a through groove, a limiting slide groove, a limiting slider, an annular sleeve, and a limiting insert. The through groove and the limiting slide groove are both formed on the top cover. The limiting slider is fixedly installed on the outer wall of the fermenter body and is used to limit the upward movement of the top cover after it slides into the limiting slide groove. The annular sleeve is slidably fitted onto the outer wall of the fermenter body. The limiting insert is fixedly installed on the annular sleeve and is adapted to the through groove to limit the rotation of the top cover.

[0009] Preferably, a reset component is connected between the fermenter body and the annular sleeve; The reset component includes a strip groove, a fixing rod, a second spring, and a sliding sleeve. The strip groove is vertically formed on the outer wall of the fermenter body. The fixing rod is fixedly connected between the two end walls of the strip groove. The second spring is sleeved on the outer wall of the fixing rod. The sliding sleeve is slidably sleeved on the outer wall of the fixing rod.

[0010] Preferably, a striking mechanism is connected between the fermenter body and the shaft rod to strike the outer wall of the fermenter body to prevent the inoculum from sticking to the inner wall of the fermenter body; The striking mechanism includes a cross plate, an annular plate, an arc-shaped block, a U-shaped seat, a rotating rod, a rubber striking ball, a sliding ball, and a spring. The cross plate is fixedly installed at the lower end of the rotating rod, the annular plate is fixedly installed at the four ends of the cross plate, the arc-shaped block is fixedly connected to the outer wall of the annular plate, the U-shaped seat is fixedly installed on the outer wall of the fermentation tank body, the rotating rod is rotatably connected to the U-shaped seat through a rotating shaft, the rubber striking ball is fixedly installed at one end of the rotating rod, and the sliding ball is fixedly installed at the other end of the rotating rod, used to intermittently contact the arc-shaped block to realize the swinging of the rotating rod, and the spring is fixedly installed between the fermentation tank body and the rotating rod.

[0011] Preferably, a drive motor is fixedly installed at the upper end of the top cover, the output end of the drive motor is fixedly connected to a prism, and a prism groove is opened at the upper end of the shaft.

[0012] Preferably, the outer wall of the sliding sleeve is fixedly connected to the inner wall of the annular sleeve, and the sliding sleeve is slidably connected to the inner wall of the strip groove.

[0013] Preferably, the upper end of the second spring is fixedly connected to the lower end of the sliding sleeve block, and the lower end of the second spring is fixedly connected to the end wall of the strip groove.

[0014] Preferably, an oxygen generator is provided on the outer wall of the fermenter body to supply oxygen to the interior of the fermenter body, and a control valve is provided on the discharge pipe.

[0015] Preferably, the prism is inserted into the inner wall of the prism groove, and is used to drive the rotation of the shaft rod after the drive motor is started. The size of the prism groove is adapted to the size of the prism.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention features a structure in which spiral blades and a stirring assembly work in tandem. The spiral blades welded to the outer wall of the shaft can transport the inoculum from the bottom of the fermenter upwards, preventing it from settling and causing incomplete fermentation. Simultaneously, when the shaft rotates and drives the fixed plate to rotate, the gear disc engages and rolls within the toothed ring, driving the stirring rod and stirring blades to rotate, further stirring the inoculum inside. The synergistic effect of both ensures thorough stirring of the inoculum, effectively improving fermentation efficiency. 2. This invention incorporates a quick-release mechanism and a reset component. In the quick-release mechanism, the limiting slider and the limiting groove cooperate to restrict the upward movement of the top cover, and the annular sleeve and the limiting insert block cooperate to restrict the rotation of the top cover. During disassembly, simply move the annular sleeve downward to pull out the limiting insert block, then rotate the top cover and move it upward to remove it. In the reset component, the elastic force of the second spring can cause the sliding sleeve block to drive the annular sleeve to move upward and reset, allowing the limiting insert block to insert into the through groove, effectively preventing the top cover from rotating. 3. This invention, by setting up a striking mechanism, drives the cross plate, ring plate, and arc-shaped blocks to rotate when the shaft rotates. Multiple arc-shaped blocks intermittently contact and detach from the sliding ball, causing the rotating rod to reciprocate in conjunction with the U-shaped seat and spring. This achieves the striking of the rubber striking ball against the outer wall of the fermenter body, effectively preventing the inoculum inside the fermenter body from sticking to the wall, ensuring the normal flow and mixing of the inoculum during the fermentation process, and further improving the fermentation efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a microbial fermentation tank proposed in this invention; Figure 2 This is a first view of the structure of a microbial fermentation tank after the top cover has been removed, as proposed in this invention. Figure 3This is a second view of the structure of a microbial fermentation tank after the top cover has been removed, as proposed in this invention. Figure 4 This is a schematic diagram of the structure of the top cover in a microbial fermentation tank proposed in this invention; Figure 5 This is a first cross-sectional view of a microbial fermentation tank proposed in this invention; Figure 6 This is a second cross-sectional view of a microbial fermentation tank proposed in this invention; Figure 7 This invention provides a microbial fermentation tank. Figure 2 Enlarged view of the structure at point A in the middle.

[0018] In the diagram: 1. Fermentation tank body; 2. Top cover; 3. Feed pipe; 4. Discharge pipe; 5. Support leg; 6. Shaft rotating rod; 7. Spiral blade; 8. Fixing plate; 9. Stirring rod; 10. Stirring blade; 11. Gear disk; 12. Gear ring; 13. Cross plate; 14. Ring plate; 15. Arc block; 16. U-shaped seat; 17. Rotating rod; 18. Rubber striking ball; 19. Sliding ball; 20. Spring one; 21. Drive motor; 22. Prism; 23. Prism groove; 24. Oxygen generator; 25. Through groove; 26. Limiting slide groove; 27. Limiting slider; 28. Ring sleeve; 29. ​​Limiting insert block; 30. Strip groove; 31. Fixing rod; 32. Spring two; 33. Sliding sleeve block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Example, refer to Figure 1-7 A microbial fermentation tank is described. The main body 1 of the fermentation tank is made of stainless steel, is cylindrical, and hollow inside. The top cover 2 is also made of stainless steel and is fitted to the shape of the main body 1, connected by a snap-fit ​​mechanism. A feed pipe 3, a cylindrical pipe, is welded to the top cover 2 for adding the microbial culture into the fermentation tank 1. A discharge pipe 4, a cylindrical pipe, is welded to one side of the outer wall of the fermentation tank 1 and is equipped with a control valve for discharging the culture after fermentation. Three cylindrical support legs 5 are evenly fixed to the bottom of the outer wall of the fermentation tank 1 to provide stable support for the fermentation tank.

[0021] The bottom wall of the fermenter body 1 is rotatably connected to a shaft rod 6 via a waterproof bearing. The shaft rod 6 is a cylindrical metal rod. The outer wall of the shaft rod 6 is welded with spiral blades 7. The spiral blades 7 are spiral-shaped and can transport the inoculum at the bottom of the fermenter body 1 upwards, so that the inoculum is fully stirred and avoids settling to the bottom, which would lead to incomplete fermentation.

[0022] The stirring assembly is installed between the fermenter body 1 and the shaft 6. The fixing plate 8 is a circular metal plate, fixedly installed on the outer wall of the shaft 6. The stirring rod 9 is a cylindrical metal rod, rotatably connected to the fixing plate 8 via a bearing. The stirring blade 10 is a rectangular metal piece, fixedly installed on the outer wall of the stirring rod 9. The gear disk 11 is a circular gear, fixedly installed on the upper end of the stirring rod 9. The retaining ring 12 is a ring gear, fixedly installed on the inner wall of the fermenter body 1, meshing with the gear disk 11. When the shaft 6 drives the fixing plate 8 to rotate, the gear disk 11 meshes and rolls on the inner wall of the retaining ring 12, driving the stirring rod 9 and the stirring blade 10 to rotate, thus stirring the internal microorganisms and improving fermentation efficiency.

[0023] Furthermore, a quick-release mechanism connects the fermenter body 1 and the top cover 2. The through groove 25 is a rectangular groove located at the edge of the top cover 2. The limiting slide groove 26 is an arc-shaped groove located at the edge of the top cover 2 adjacent to the through groove 25. The limiting slider 27 is a rectangular block, fixedly installed at the top edge of the outer wall of the fermenter body 1. When the top cover 2 is fastened onto the fermenter body 1, the limiting slider 27 slides into the limiting slide groove 26, thus restricting the upward movement of the top cover 2.

[0024] The annular sleeve 28 is a circular metal sleeve that slides onto the outer wall of the fermenter body 1. The limiting block 29 is a rectangular block that is fixedly installed on the annular sleeve 28 and is adapted to be inserted into the inner wall of the through groove 25. When the annular sleeve 28 slides to the point where the limiting block 29 is inserted into the through groove 25, it can restrict the rotation of the top cover 2. When it is necessary to remove the top cover 2, the annular sleeve 28 is moved downward to completely pull the limiting block 29 out of the inner wall of the through groove 25. Then, the top cover 2 is rotated until the limiting slider 27 corresponds to the position of the through groove 25. The top cover 2 can then be moved upward to remove it, facilitating the cleaning of the inside of the fermenter body 1.

[0025] Furthermore, a reset component is connected between the fermenter body 1 and the annular sleeve 28. The strip groove 30 is a rectangular groove, vertically formed on the outer wall of the fermenter body 1. The fixing rod 31 is a cylindrical metal rod, fixedly connected between the two end walls of the strip groove 30. The spring 32 is a helical spring, sleeved on the outer wall of the fixing rod 31. The sliding block 33 is a rectangular block, slidably sleeved on the outer wall of the fixing rod 31, and the outer wall of the sliding block 33 is fixedly connected to the inner wall of the annular sleeve 28, while the sliding block 33 is slidably connected to the inner wall of the strip groove 30.

[0026] The upper end of spring 2 32 is fixedly connected to the lower end of sliding sleeve block 33, and the lower end of spring 2 32 is fixedly connected to the end wall of strip groove 30. When the annular sleeve 28 is moved downward, sliding sleeve block 33 slides downward in strip groove 30, pressing spring 2 32. After the top cover 2 is assembled, the force on the annular sleeve 28 is released, and the elastic force of spring 2 32 will cause sliding sleeve block 33 to drive the annular sleeve 28 to move upward and reset, so that the limiting insert 29 is inserted into the inner wall of through groove 25, effectively preventing the top cover 2 from rotating.

[0027] Furthermore, a striking mechanism is connected between the fermenter body 1 and the shaft rod 6. The cross plate 13 is a cross-shaped metal plate, fixedly installed at the lower end of the shaft rod 6. The annular plate 14 is a circular annular metal plate, fixedly installed at the four ends of the cross plate 13. The arc-shaped block 15 is an arc-shaped metal block, fixedly connected to the outer wall of the annular plate 14; multiple arc-shaped blocks 5 are circumferentially distributed on the annular plate 14 to achieve intermittent contact.

[0028] U-shaped seat 16 is a U-shaped metal seat, fixedly installed on the outer wall of the fermenter body 1. Rotating rod 17 is a cylindrical metal rod, rotatably connected to U-shaped seat 16 via a pivot. Rubber striking ball 18 is a spherical rubber product, fixedly installed at one end of rotating rod 17. Smooth ball 19 is a spherical metal product, fixedly installed at the other end of rotating rod 17. Spring 20 is a helical spring, fixedly installed between fermenter body 1 and rotating rod 17.

[0029] When the shaft rod 6 rotates, it drives the cross plate 13, the ring plate 14 and the arc block 15 to rotate. Multiple arc blocks 15 intermittently contact and detach from the sliding ball 19, causing the rotating rod 17 to reciprocate in conjunction with the U-shaped seat 16 and the spring 20. This enables the rubber striking ball 18 to strike the outer wall of the fermenter body 1, preventing the bacteria inside the fermenter body 1 from sticking to the wall and improving fermentation efficiency.

[0030] Furthermore, a drive motor 21 is bolted to the upper end of the top cover 2. The drive motor 21 is a common electric drive device. A prism 22, which is a multi-prism shape, is fixedly connected to the output end of the drive motor 21. The upper end of the shaft rotating rod 6 has a prismatic groove 23, the size of which is adapted to the size of the prism 22. When the drive motor 21 is started, the prism 22 is inserted into the inner wall of the prismatic groove 23, and the drive motor 21 drives the shaft rotating rod 6 to rotate, thereby driving the spiral blades 7, the fixing plate 8, and other components on the shaft rotating rod 6 to work, realizing the functions of stirring and conveying the inoculum.

[0031] Furthermore, the outer wall of the sliding sleeve 33 is fixedly connected to the inner wall of the annular sleeve 28 by welding, and the sliding sleeve 33 is slidably connected to the inner wall of the strip groove 30. During the up-and-down movement of the annular sleeve 28, the sliding sleeve 33 slides within the strip groove 30, ensuring the stability of the movement of the annular sleeve 28, and also realizing the relative sliding between the annular sleeve 28 and the fermentation tank body 1. This facilitates the insertion and removal of the limiting insert 29 by controlling the annular sleeve 28, and enables the quick assembly and disassembly of the top cover 2.

[0032] Furthermore, the upper end of spring 2 32 is fixedly connected to the lower end of sliding sleeve block 33 by welding, and the lower end of spring 2 32 is fixedly connected to the end wall of strip groove 30 by welding. When the annular sleeve 28 is moved downward, sliding sleeve block 33 compresses spring 2 32, and spring 2 32 generates elastic force. When the annular sleeve 28 is released, the elastic force of spring 2 32 causes sliding sleeve block 33 to drive the annular sleeve 28 to move upward and reset, so that the limiting insert 29 is inserted into the through groove 25, which restricts the rotation of the top cover 2.

[0033] Furthermore, an oxygen generator 24 is installed on the outer wall of the fermenter body 1. The oxygen generator 24 is an oxygen-generating device that is connected to the interior of the fermenter body 1 through a pipeline. It is used to supply oxygen to the interior of the fermenter body 1 to meet the oxygen requirements of the aerobic bacteria during fermentation, so that the aerobic bacteria receive more oxygen and improve the fermentation effect. A control valve is installed on the discharge pipe 4. The control valve is a common valve device that can control the opening and closing of the discharge pipe 4 and adjust the flow rate of the bacteria discharged.

[0034] Furthermore, the prism 22 is inserted into the inner wall of the prismatic groove 23, and the dimensions of the prismatic groove 23 are adapted to the dimensions of the prism 22. When the drive motor 21 is started, the output end of the drive motor 21 drives the prism 22 to rotate. Since the prism 22 and the prismatic groove 23 are closely matched, the prism 22 drives the shaft rod 6 to rotate, thereby realizing the transmission of power from the drive motor 21 to the shaft rod 6. This enables the shaft rod 6 to drive the spiral blade 7, the fixing plate 8 and other components to work normally, complete the functions of stirring and conveying the inoculum, and improve the fermentation efficiency.

[0035] Working principle: First, the inoculum to be fermented is introduced into the fermentation tank body 1 through the feed pipe 3. Then, the drive motor 21 is started. At this time, the drive motor 21, in conjunction with the prism 22 and the prismatic groove 23, drives the shaft rod 6 to rotate, thereby causing the shaft rod 6 to drive the fixed plate 8 to rotate synchronously. When the fixed plate 8 rotates, the gear disk 11 engages and rolls on the inner wall of the toothed ring 12, thereby driving the rotation of the stirring rod 9 and the stirring blade 10, realizing the stirring of the inoculum inside and improving the fermentation efficiency. During the rotation of the shaft rod 6, the spiral blade 7 will also rotate, which will transport the inoculum at the bottom of the fermentation tank body 1 to the top for sufficient stirring, avoiding insufficient fermentation due to settling at the bottom. During the whole process, the oxygen generator 24 is started synchronously to provide sufficient oxygen for the aerobic inoculum. In addition, during the rotation of the shaft rod 6, the cross plate 13, the ring plate 14 and the arc block 15 will also rotate, causing multiple arc blocks 15 to intermittently contact and disengage. The sliding ball 19 allows the rotating rod 17 to reciprocate in conjunction with the U-shaped seat 16 and the spring 20, enabling the rubber striking ball 18 to strike the outer wall of the fermentation tank body 1. This prevents the bacteria inside the fermentation tank body 1 from sticking to the wall, further improving fermentation efficiency. Finally, when the inside of the fermentation tank body 1 needs cleaning, simply move the annular sleeve 28 downwards to allow the limiting insert 29 to be completely pulled out from the inner wall of the through groove 25. Then rotate the top cover 2. When the limiting slider 27 rotates to the position of the through groove 25, moving the top cover 2 upwards will disassemble it. During the downward movement of the annular sleeve 28, it will work with the sliding sleeve block 33 to compress the spring 32. Therefore, after the top cover 2 is assembled, simply release the force on the annular sleeve 28 to allow the annular sleeve 28 to drive the limiting insert 29 to move upwards and reset. The limiting insert 29, after being inserted into the inner wall of the through groove 25, can effectively prevent the rotation of the top cover 2.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A microbial fermentation tank, comprising a fermentation tank body (1) and a top cover (2) fastened thereto, wherein a feed pipe (3) is provided on the top cover (2) for adding microbial culture into the interior of the fermentation tank body (1), and a discharge pipe (4) is connected through the outer wall of the fermentation tank body (1) for discharging the microbial culture after fermentation is completed, and a support leg (5) is fixedly installed on the outer wall of the fermentation tank body (1), characterized in that, The inner bottom wall of the fermentation tank body (1) is rotatably connected to a shaft rod (6) via a waterproof bearing. The outer wall of the shaft rod (6) is fixedly connected to a spiral blade (7) for moving the bacteria at the bottom of the fermentation tank body (1) upward. The fermentation tank body (1) is equipped with a stirring assembly. The stirring assembly includes a fixed plate (8), a stirring rod (9), a stirring blade (10), a gear disk (11), and a retaining ring (12). The fixed plate (8) is fixedly installed on the outer wall of the shaft (6). The stirring rod (9) is rotatably connected to the fixed plate (8) through a bearing. The stirring blade (10) is fixedly installed on the outer wall of the stirring rod (9). The gear disk (11) is fixedly installed on the upper end of the stirring rod (9). The retaining ring (12) is fixedly installed on the inner wall of the fermenter body (1) and meshes with the gear disk (11).

2. The microbial fermentation tank according to claim 1, characterized in that, A quick disassembly mechanism is connected between the main body (1) and the top cover (2) of the fermentation tank; The quick disassembly and assembly mechanism includes a through groove (25), a limiting slide groove (26), a limiting slider (27), an annular sleeve (28), and a limiting insert (29). The through groove (25) and the limiting slide groove (26) are both opened on the top cover (2). The limiting slider (27) is fixedly installed on the outer wall of the fermentation tank body (1) to restrict the top cover (2) from moving upward after sliding into the limiting slide groove (26). The annular sleeve (28) is slidably sleeved on the outer wall of the fermentation tank body (1). The limiting insert (29) is fixedly installed on the annular sleeve (28) and is adapted to the through groove (25) to restrict the rotation of the top cover (2).

3. The microbial fermentation tank according to claim 2, characterized in that, A reset component is connected between the fermenter body (1) and the annular sleeve (28); The reset component includes a strip groove (30), a fixing rod (31), a second spring (32), and a sliding sleeve (33). The strip groove (30) is vertically formed on the outer wall of the fermenter body (1). The fixing rod (31) is fixedly connected between the two end walls of the strip groove (30). The second spring (32) is sleeved on the outer wall of the fixing rod (31). The sliding sleeve (33) is slidably sleeved on the outer wall of the fixing rod (31).

4. The microbial fermentation tank according to claim 1, characterized in that, A striking mechanism is connected between the fermenter body (1) and the shaft rod (6) to strike the outer wall of the fermenter body (1) to prevent the bacteria from sticking to the inner wall of the fermenter body (1); The striking mechanism includes a cross plate (13), an annular plate (14), an arc-shaped block (15), a U-shaped seat (16), a rotating rod (17), a rubber striking ball (18), a sliding ball (19), and a spring (20). The cross plate (13) is fixedly installed at the lower end of the rotating rod (6), the annular plate (14) is fixedly installed at the four ends of the cross plate (13), the arc-shaped block (15) is fixedly connected to the outer wall of the annular plate (14), and the U-shaped seat (16) is fixedly installed on the... The outer wall of the fermenter body (1), the rotating rod (17) is rotatably connected to the U-shaped seat (16) through a rotating shaft, the rubber striking ball (18) is fixedly installed at one end of the rotating rod (17), the sliding ball (19) is fixedly installed at the other end of the rotating rod (17) for intermittently contacting the arc block (15) to realize the swing of the rotating rod (17), and the spring (20) is fixedly installed between the fermenter body (1) and the rotating rod (17).

5. The microbial fermentation tank according to claim 1, characterized in that, The top cover (2) is fixedly installed with a drive motor (21), the output end of the drive motor (21) is fixedly connected to a prism (22), and the upper end of the shaft rod (6) is provided with a prism groove (23).

6. The microbial fermentation tank according to claim 3, characterized in that, The outer wall of the sliding sleeve (33) is fixedly connected to the inner wall of the annular sleeve (28), and the sliding sleeve (33) is slidably connected to the inner wall of the strip groove (30).

7. A microbial fermentation tank according to claim 3, characterized in that, The upper end of the second spring (32) is fixedly connected to the lower end of the sliding sleeve (33), and the lower end of the second spring (32) is fixedly connected to the end wall of the strip groove (30).

8. The microbial fermentation tank according to claim 1, characterized in that, An oxygen generator (24) is provided on the outer wall of the fermentation tank body (1) to supply oxygen to the interior of the fermentation tank body (1), and a control valve is provided on the discharge pipe (4).

9. A microbial fermentation tank according to claim 5, characterized in that, The prism (22) is inserted into the inner wall of the prism groove (23) and is used to drive the rotation of the shaft rod (6) after the drive motor (21) is started. The size of the prism groove (23) is adapted to the size of the prism (22).

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