An anaerobic fermentation device for preparing a microbial seed solution

Abstract

The application discloses an anaerobic fermentation device for preparing microbial seed liquid and relates to the technical field of anaerobic fermentation devices.The device comprises a preparation tank, a tank cover one, a culture tank and a tank cover two, the top of the tank cover one is fixedly provided with a mounting plate, the top surface of the mounting plate is provided with a placing box, a filtering mechanism and a feeding mechanism, the top of the tank cover one is rotatably provided with a hollow shaft, the top of the hollow shaft is provided with a driving mechanism, the outer wall of the hollow shaft is provided with a driving piece, and the outer wall of the bottom of the hollow shaft is uniformly and fixedly provided with a plurality of stirring blades; the preparation tank and the culture tank are communicated through a connecting piece one; the driving piece and the triangular clamping groove are used in cooperation, so that the circular plate can drive the feeding mechanism to work when the circular plate rotates counterclockwise, the acetic acid solution can be filtered first, the precipitate in the acetic acid is prevented from contacting the baking soda and affecting the preparation of carbon dioxide gas, thereby affecting the efficiency of the preparation of the microbial seed liquid, and then the acetic acid solution is added into the baking soda, so that the carbon dioxide gas is prepared.

Description

Technical Field

[0001] This invention relates to the field of anaerobic fermentation equipment technology, and more particularly to an anaerobic fermentation equipment for preparing microbial seed liquid. Background Technology

[0002] The high activity of microorganisms in seed liquid can shorten the fermentation cycle. The number of microorganisms can be increased from slant culture medium to seed liquid, which is also called expansion culture. Microbial fermentation refers to the process of using microorganisms to transform raw materials into products needed by humans through specific metabolic pathways under suitable conditions. When preparing anaerobic fermentation microbial seed liquid, anaerobic fermentation equipment is required.

[0003] However, existing anaerobic fermentation devices use a mixture of acetic acid solution and baking soda to produce carbon dioxide gas. Specifically, the operator needs to add the acetic acid solution to the baking soda. This operation increases the workload of the workers, and there will be precipitates in the acetic acid solution. These precipitates will not react with the baking soda, but instead reduce the contact area between the acetic acid solution and the baking soda, thus affecting the efficiency of carbon dioxide production. Summary of the Invention

[0004] In order to solve the problems in the background art, the present invention proposes an anaerobic fermentation device for preparing microbial seed liquid.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An anaerobic fermentation apparatus for preparing microbial seed liquid includes a preparation tank, a tank cover one, a culture tank, and a tank cover two. An installation plate is fixedly installed on the top of the tank cover one by a bracket. A placement box, a filtration mechanism, and a feeding mechanism are installed on the top surface of the installation plate.

[0007] The top of the can lid is rotatably provided with a hollow shaft, and the top of the hollow shaft moves through the mounting plate and is provided with a drive mechanism that acts on the feeding mechanism. The outer wall of the hollow shaft is provided with a drive component, and multiple stirring blades are uniformly fixed to the bottom outer wall of the hollow shaft.

[0008] The preparation tank and the culture tank are connected by a connector.

[0009] The filtration mechanism includes a filter box mounted on a mounting plate and a triangular filter screen plate disposed inside the filter box. An opening is provided on one side of the filter box, and a waste collection net box is provided inside the opening. A cleaning component that acts on the triangular filter screen plate is provided inside the filter box. A liquid guide pipe is provided on the top surface of the filter box, and one end of the liquid guide pipe movably passes through the placement box and extends to the bottom of the placement box.

[0010] Preferably, the driving mechanism includes a circular plate fixed to the top of the hollow shaft, an annular groove formed on the top surface of the circular plate, and a short cylinder slidably disposed in the annular groove. A rectangular cavity is formed inside the short cylinder, and a control component acting on the short cylinder is provided inside the rectangular cavity. An annular plate is slidably disposed on the outer wall of the short cylinder, and a connecting rod is fixed to one side of the annular plate.

[0011] Preferably, the control component includes a triangular locking block slidably disposed within a rectangular cavity, a compression spring being provided between the triangular locking block and the rectangular cavity, and a plurality of triangular locking slots being evenly provided on the inner wall of the annular groove to cooperate with the triangular locking block.

[0012] Preferably, the feeding mechanism includes a sealing box disposed on the top surface of the mounting plate, a piston slidably disposed within the sealing box, and an annular box rotatably disposed on the outer wall of a hollow shaft. The annular box is fixedly connected to the top surface of the tank cover. Multiple liquid inlet holes are provided on the outer wall of the hollow shaft inside the annular box. The piston is fixedly connected to a connecting rod. The sealing box and the annular box are connected through a liquid outlet pipe. A one-way liquid outlet valve is provided on the outer wall of the liquid outlet pipe. The filter box and the sealing box are connected through a liquid inlet pipe. A one-way liquid inlet valve is provided on the outer wall of the liquid inlet pipe.

[0013] Preferably, the cleaning assembly includes a second connecting rod slidably mounted on the filter box, a limiting plate fixed to the bottom of the second connecting rod, and a movable rod rotatably mounted at the bottom of the second connecting rod via a torsion spring shaft. A return spring is sleeved on the second connecting rod. A stop block cooperating with the movable rod is fixedly mounted on the circular plate. A scraper cooperating with a triangular filter screen is slidably mounted on one end of the second connecting rod via a second connecting piece. A short cylinder is fixedly mounted on the side of the scraper. An adjusting component acting on the scraper is provided on the inner wall of the filter box.

[0014] Preferably, the adjusting component includes a cleaning groove and a return groove formed on the inner wall of the filter box, and the two ends of the return groove and the cleaning groove are connected by an inclined groove, and the two inclined grooves are parallel to each other.

[0015] Preferably, the second connector includes a connecting frame fixed to the second connecting rod, the scraper has rectangular grooves symmetrically formed to match the connecting frame, and the connecting frame is slidably disposed in the rectangular groove, with a compression spring provided above the rectangular groove.

[0016] Preferably, the driving component includes a gear one fixed to the outer wall of the hollow shaft, a short shaft rotatably provided on the top of the can lid one via an L-shaped frame, a gear two meshing with the gear one fixed to the top of the short shaft, a micro motor provided at the bottom, and the micro motor mounted on the top of the can lid one.

[0017] Preferably, the first connecting component includes a first air guide pipe disposed on the top surface of the first can lid, a second air guide pipe disposed on the second can lid, and a check valve disposed on the second air guide pipe. One end of the second air guide pipe is provided with a first regulating valve, which is connected to the first air guide pipe. The second can lid is also provided with a third air guide pipe, on which the second regulating valve is disposed.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] This invention utilizes the coordinated use of control components and triangular slots to facilitate the operation of the feeding mechanism when the circular plate rotates counterclockwise. This allows for the initial filtration of the acetic acid solution, preventing precipitates in the acetic acid from contacting the baking soda and affecting the preparation of carbon dioxide gas, thus impacting the efficiency of microbial seed culture preparation. The acetic acid solution is then added to the baking soda to produce carbon dioxide gas. The hollow shaft drives the stirring blades, ensuring thorough mixing of the acetic acid solution and baking soda, facilitating rapid carbon dioxide gas production and improving the efficiency of anaerobic fermentation seed culture. When the circular plate rotates clockwise, the feeding mechanism is inactive, while the cleaning component operates, facilitating the removal of precipitates from the triangular filter plate and preventing clogging of the mesh, thus promoting acetic acid filtration. Furthermore, the coordinated use of the adjusting component and the short cylinder allows the scraper to lift during resetting, disengaging it from the triangular filter plate and preventing it from carrying precipitates back during resetting. This ensures that impurities are pushed into the waste collection bin for easy precipitate collection. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure from a frontal view provided according to an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the structure from a rear viewpoint provided according to an embodiment of the present invention is shown;

[0022] Figure 3 A partial structural schematic diagram of a preparation vessel provided according to an embodiment of the present invention is shown;

[0023] Figure 4 A cross-sectional view of a preparation vessel provided according to an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of the connection between the drive mechanism and the can lid provided according to an embodiment of the present invention is shown;

[0025] Figure 6 A cross-sectional view of a hollow shaft provided according to an embodiment of the present invention is shown;

[0026] Figure 7A schematic diagram of the feeding mechanism provided according to an embodiment of the present invention is shown;

[0027] Figure 8 A schematic diagram of the structure of a circular plate according to an embodiment of the present invention is shown;

[0028] Figure 9 A schematic diagram of the structure of a circular plate from a top view according to an embodiment of the present invention is shown;

[0029] Figure 10 for Figure 9 A magnified view of a section at point A in the middle;

[0030] Figure 11 A schematic diagram of the structure of a cleaning component provided according to an embodiment of the present invention is shown;

[0031] Figure 12 A schematic diagram of the structure of the adjusting member provided according to an embodiment of the present invention is shown;

[0032] Figure 13 A schematic diagram of the structure of the second connector provided according to an embodiment of the present invention is shown;

[0033] Figure 14 for Figure 4 A magnified view of a section at point B in the middle;

[0034] Figure 15 for Figure 11 A magnified view of a section at point C.

[0035] Legend:

[0036] 1. Preparation tank; 2. Culture tank; 3. Tank lid one; 4. Tank lid two; 5. Short cylinder one; 6. Gas guide tube one; 7. Annular plate; 8. Connecting rod one; 9. One-way liquid outlet valve; 10. Liquid outlet pipe; 11. Mounting plate; 12. Liquid guide tube; 13. Placement box; 14. Sealing box; 15. Regulating valve one; 16. Check valve; 17. Gas guide tube two; 18. One-way liquid inlet valve; 19. Liquid inlet pipe; 20. Filter box; 21. Micro motor; 22. Circular plate; 23. Piston; 24. Annular box; 25. Hollow shaft; 26. Stirring 27. Gear 1; 28. Gear 2; 29. ​​Short shaft; 30. Liquid inlet; 31. Stop block; 32. Compression spring 1; 33. Triangular locking block; 34. Annular groove; 35. Triangular locking groove; 36. Compression spring 2; 37. Waste recycling net box; 38. Triangular filter screen; 39. Adjusting component; 3901. Cleaning groove; 3902. Return groove; 3903. Inclined groove; 40. Scraper; 41. Connecting rod 2; 42. Return spring; 43. Short cylinder 2; 44. Movable rod; 45. Limiting plate; 46. Connecting frame. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1 - Figure 15 The present invention provides a technical solution:

[0039] An anaerobic fermentation apparatus for preparing microbial seed culture includes a preparation tank 1 for holding sodium bicarbonate, a tank cover 3 on top of the preparation tank 1, a culture tank 2 on one side of the preparation tank 1 for holding prepared anaerobic culture medium, a tank cover 4 on the culture tank 2, a mounting plate 11 fixedly mounted above the tank cover 3 by a bracket, a placement box 13 mounted on the top surface of the mounting plate 11 for holding acetic acid solution, a filtration mechanism, and a feeding mechanism. The filtration mechanism facilitates the filtration of the acetic acid solution, preventing precipitates in the acetic acid from contacting the sodium bicarbonate and affecting the preparation of carbon dioxide gas, thus affecting the efficiency of microbial seed culture preparation. The feeding mechanism facilitates the addition of acetic acid solution to the sodium bicarbonate, utilizing the reaction between the acetic acid solution and the sodium bicarbonate to achieve carbon dioxide preparation.

[0040] The top of the tank lid 3 is equipped with a hollow shaft 25, which rotatably passes through the mounting plate 11 and is equipped with a drive mechanism that acts on the feeding mechanism. Through the use of the drive mechanism, the piston 23 can be reciprocated, thereby facilitating the addition of acetic acid solution from the placement box 13 to the preparation tank 1. At the same time, the drive mechanism can also drive the cleaning component to work, which facilitates the cleaning of impurities on the triangular filter plate 38, so as to facilitate the filtration of acetic acid solution. The outer wall of the hollow shaft 25 is equipped with a drive component to provide power. Multiple stirring blades 26 are uniformly fixed to the bottom outer wall of the hollow shaft 25. Through the use of the stirring blades 26, the baking soda and acetic acid solution in the preparation tank 1 can be stirred, so as to mix them quickly and improve the efficiency of carbon dioxide preparation, thereby improving the efficiency of microbial seed liquid preparation.

[0041] Preparation tank 1 and culture tank 2 are connected by a connector; the use of connector 1 facilitates the connection between preparation tank 1 and culture tank 2, thereby facilitating the entry of carbon dioxide gas produced in preparation tank 1 into culture tank 2.

[0042] The filtration mechanism includes a filter box 20 mounted on the mounting plate 11 and a triangular filter screen 38 disposed inside the filter box 20. An opening is provided on one side of the filter box 20, and a waste collection box 37 is provided inside the opening for collecting filtered impurities. A cleaning component is provided inside the filter box 20 to act on the triangular filter screen 38. The use of the cleaning component facilitates the cleaning of the surface of the triangular filter screen 38, preventing impurities from clogging the mesh of the triangular filter screen 38, thereby facilitating the filtration of acetic acid solution. A liquid guide pipe 12 is provided on the top surface of the filter box 20, and one end of the liquid guide pipe 12 movably passes through the placement box 13 and extends to the bottom of the placement box 13.

[0043] In this invention, the driving mechanism includes a circular plate 22 fixedly attached to the top of the hollow shaft 25, an annular groove 34 formed on the top surface of the circular plate 22, and a short cylinder 5 slidably disposed within the annular groove 34. A rectangular cavity is formed within the short cylinder 5, and a control component acting on the short cylinder 5 is provided within the rectangular cavity. Through the cooperation of the control component and the triangular slot 35, the piston 23 can be reciprocated when the circular plate 22 rotates counterclockwise, thereby adding acetic acid solution. When the circular plate 22 rotates clockwise, it can drive the cleaning component to work, thereby cleaning the triangular filter screen 38 to facilitate the filtration of acetic acid solution. An annular plate 7 is slidably disposed on the outer wall of the short cylinder 5, and a connecting rod 8 is fixedly attached to one side of the annular plate 7.

[0044] In this invention, the control component includes a triangular locking block 33 slidably disposed in a rectangular cavity, a compression spring 36 is provided between the triangular locking block 33 and the rectangular cavity, and a plurality of triangular locking slots 35 are evenly provided on the inner wall of the annular groove 34 to cooperate with the triangular locking block 33; by using the compression spring 36, it is easy to compress the triangular locking block 33, thereby making it easy for the triangular locking block 33 to be engaged in the triangular locking slot 35.

[0045] In this invention, the feeding mechanism includes a sealing box 14 disposed on the top surface of the mounting plate 11, a piston 23 slidably disposed within the sealing box 14, and an annular box 24 rotatably disposed on the outer wall of the hollow shaft 25. The annular box 24 is fixedly connected to the top surface of the tank cover 3. Multiple liquid inlet holes 30 are provided on the outer wall of the hollow shaft 25 inside the annular box 24 to facilitate the entry of acetic acid solution into the hollow shaft 25 and then into the preparation tank 1. The piston 23 is fixedly connected to the connecting rod 8. The sealing box 14 and the annular box 24 are connected through a liquid outlet pipe 10. A one-way liquid outlet valve 9 is provided on the outer wall of the liquid outlet pipe 10 to prevent the acetic acid solution from flowing back into the sealing box 14. The filter box 20 is connected to the sealing box 14 through a liquid inlet pipe 19. A one-way liquid inlet valve 18 is provided on the outer wall of the liquid inlet pipe 19 to prevent the acetic acid solution from flowing back into the filter box 20.

[0046] In this invention, the cleaning assembly includes a second connecting rod 41 slidably mounted on the filter box 20, a limiting plate 45 fixedly connected to the bottom of the second connecting rod 41, and a movable rod 44 rotatably mounted on the bottom of the second connecting rod 41 via a torsion spring shaft. The torsion spring shaft consists of a torsion spring and a shaft, providing a force to the movable rod 44 to keep it parallel to the second connecting rod 41. The limiting plate 45 prevents the movable rod 44 from rotating backward, thus ensuring that the connecting rod 41 can move when the circular plate 22 rotates clockwise, thereby enabling the scraper 40 to move. A return spring 42 is sleeved on the second connecting rod 41 for resetting the scraper 40. A retaining plate 45 is fixedly connected to the movable rod 41. The stop block 31, which is matched with the 4-phase material, facilitates the movement of the connecting rod 41. One end of the connecting rod 41 is slidably equipped with a scraper 40 that cooperates with the triangular filter plate 38 via a connector. A short cylinder 43 is fixedly connected to the side of the scraper 40. An adjusting member 39 that acts on the scraper 40 is provided on the inner wall of the filter box 20. Through the cooperation of the adjusting member 39 and the short cylinder 43, the scraper 40 is lifted when it is reset, thereby disengaging the scraper 40 from the triangular filter plate 38 and preventing the scraper 40 from bringing back the sediment when it is reset. This ensures that impurities are pushed into the waste recycling box 37 for easy collection of sediment.

[0047] In this invention, the adjusting member 39 includes a cleaning groove 3901 and a return groove 3902 formed on the inner wall of the filter box 20. The two ends of the return groove 3902 and the cleaning groove 3901 are connected by an inclined groove 3903, and the two inclined grooves 3903 are parallel to each other. When the short cylinder 43 moves in the cleaning groove 3901, the scraper 40 contacts the triangular filter plate 38 to clean the triangular filter plate 38. When the short cylinder 43 moves in the return groove 3902, the scraper 40 is lifted and separated from the triangular filter plate 38, which prevents the scraper 40 from bringing back the sediment when it resets, and facilitates the collection of sediment.

[0048] In this invention, the second connector includes a connecting frame 46 fixed to the second connecting rod 41. The scraper 40 is symmetrically provided with rectangular grooves in cooperation with the connecting frame 46, and the connecting frame 46 is slidably disposed in the rectangular groove. A compression spring 32 is provided above the rectangular groove. By using the compression spring 32, the scraper 40 is easily lifted, so that the second short cylinder 43 enters the return groove 3902.

[0049] In this invention, the driving component includes a gear 27 fixed to the outer wall of the hollow shaft 25, a short shaft 29 rotatably provided on the top of the can lid 3 via an L-shaped frame, a gear 28 meshing with the gear 27 fixed on the top of the short shaft 29, and a micro motor 21 provided at the bottom, and the micro motor 21 is mounted on the top of the can lid 3.

[0050] In this invention, the first connector includes a first gas guide pipe 6 disposed on the top surface of the first can lid 3, a second gas guide pipe 17 disposed on the second can lid 4, and a check valve 16 disposed on the second gas guide pipe 17 to prevent gas from flowing back into the preparation tank 1; one end of the second gas guide pipe 17 is provided with a regulating valve 15 for adjusting the gas flow rate; the regulating valve 15 is connected to the first gas guide pipe 6, and the second can lid 4 is also provided with a third gas guide pipe, on which the second regulating valve is provided.

[0051] Working principle: When using this invention, first place baking soda in preparation tank 1, place acetic acid solution in placement box 13, and finally add the prepared anaerobic culture medium to culture tank 2, with the prepared anaerobic culture medium reaching two-thirds of the way up the culture tank 2; and the preparation tank 1 and culture tank 2 are connected by connector 1.

[0052] Then start the micro motor 21, causing the output shaft of the micro motor 21 to rotate counterclockwise, which in turn drives the short shaft 29 and the second gear 28 to rotate counterclockwise, thereby driving the first gear 27 and the hollow shaft 25 to rotate counterclockwise, and further driving the circular plate 22 and the stirring blade 26 to rotate counterclockwise;

[0053] Then, with the cooperation of the triangular block 33 and the annular groove 34, the short cylinder 5 is engaged in the annular groove 34, which in turn drives the short cylinder 5 to rotate, thereby causing the annular plate 7 and the connecting rod 8 to move back and forth, and further driving the piston 23 to move back and forth.

[0054] When piston 23 moves closer to micro motor 21, the pressure inside sealed box 14 increases, causing the acetic acid solution in box 13 to fall onto triangular filter plate 38 through liquid guide pipe 12, facilitating the filtration of precipitates in the acetic acid solution. The filtered acetic acid solution falls to the bottom of filter box 20, and then enters sealed box 14 through inlet pipe 19. When piston 23 moves away from micro motor 21, the acetic acid solution in sealed box 14 is transported to annular box 24 through outlet pipe 10, and then enters hollow shaft 25 through inlet hole 30. Finally, the acetic acid solution falls from the bottom of hollow shaft 25 into preparation tank 1.

[0055] The acetic acid solution falling into the preparation tank 1 will react with the baking soda to produce carbon dioxide gas; and the hollow shaft 25 will drive the stirring blade 26 to rotate when it rotates, so as to stir the acetic acid solution and baking soda, so as to quickly produce carbon dioxide gas, thereby facilitating the preparation of microbial seed liquid.

[0056] When the circular plate 22 rotates counterclockwise, it will drive the stop block 31 to rotate. When the stop block 31 contacts the movable rod 44, it will cause the movable rod 44 to rotate, thus preventing the movable rod 44 from moving. When the stop block 31 disengages from the movable rod 44, the movable rod 44 will be reset under the action of the torsion spring shaft.

[0057] Then, the carbon dioxide gas produced in preparation tank 1 will enter the regulating valve 15 through the gas delivery pipe 6, and then enter the bottom of culture tank 2 through the gas delivery pipe 17, so that the carbon dioxide gas mixes with the prepared anaerobic culture medium, which facilitates the preparation of microbial seed liquid; when bubbles are continuously generated in culture tank 2, the regulating valve 15 is turned off and the gas delivery pipe 6 is disconnected, and then culture tank 2 is placed in an incubator for incubation at the appropriate temperature.

[0058] Then, the output shaft of the micro motor 21 is rotated clockwise. At this time, when the triangular block 33 contacts the triangular slot 35, the triangular block 33 will enter the rectangular cavity, so that the short cylinder 5 will not rotate with the circular plate 22. At the same time, when the circular plate 22 rotates clockwise, the stop block 31 will rotate. Then, under the action of the limiting plate 45, the stop block 31 contacts the movable rod 44, and the movable rod 44 cannot rotate. Then, the movable rod 44 moves with the rotation of the stop block 31, thereby driving the connecting rod 41 to move.

[0059] As the short cylinder 43 moves within the cleaning trough 3901, the scraper 40 comes into contact with the triangular filter plate 38. As the connecting rod 41 moves, the scraper 40 moves, thus cleaning the sediment on the triangular filter plate 38. The cleaned sediment is then pushed into the garbage recycling box 37 to collect the sediment.

[0060] When the short cylinder 43 moves to the end of the cleaning groove 3901, the scraper 40 moves upward under the action of the compression spring 32, causing the short cylinder 43 to enter one of the inclined grooves 3903; and when the stop block 31 separates from the movable rod 44, the scraper 40 is reset under the action of the return spring 42; then the short cylinder 43 is reset from the return groove 3902, thereby disengaging the scraper 40 from the triangular filter plate 38, preventing the sediment on the triangular filter plate 38 from being carried back; and when When the short cylinder 43 moves into another inclined groove 3903, under the gravity of the scraper 40, the short cylinder 43 moves into another inclined groove 3903. Then, as the connecting rod 41 moves, the scraper 40 moves. At this time, the short cylinder 43 moves downward and enters the cleaning groove 3901, thereby compressing the compression spring 32. The reciprocating movement of the scraper 40 pushes the sediment on the triangular filter plate 38 into the garbage recycling box 37, thus collecting the sediment.

[0061] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anaerobic fermentation apparatus for preparing a seed solution of a microorganism, comprising a preparation tank, a tank cover 1, a culture tank, and a tank cover 2, characterized by, The installation plate is fixedly installed on the upper part of the first tank cover through a support, a placing box, a filtering mechanism and a material adding mechanism are installed on the top surface of the installation plate; a hollow shaft is rotatably arranged on the top of the first tank cover, the top of the hollow shaft movably penetrates the installation plate and is provided with a driving mechanism acting on the material adding mechanism, a driving member is arranged on the outer wall of the hollow shaft, a plurality of stirring blades are uniformly and fixedly connected to the bottom outer wall of the hollow shaft; the preparation tank and the culture tank are connected through a connecting piece one; the filtering mechanism comprises a filtering box arranged on the installation plate and a triangular filter screen plate arranged in the filtering box, an opening is formed in one side surface of the filtering box, a garbage recycling net box is arranged in the opening, a cleaning assembly acting on the triangular filter screen plate is arranged in the filtering box, a liquid guide pipe is arranged on the top surface of the filtering box, one end of the liquid guide pipe movably penetrates the placing box and extends to the bottom of the placing box; the cleaning assembly comprises a connecting rod two slidingly arranged on the filtering box, a limiting plate fixedly connected to the bottom of the connecting rod two and a movable rod rotatably arranged on the bottom of the connecting rod two through a torsion spring shaft, a reset spring is sleeved on the connecting rod two, a stop block cooperating with the movable rod is fixedly connected to the circular plate, a scraping plate cooperating with the triangular filter screen plate is slidingly arranged on one end of the connecting rod two through a connecting piece two, a short cylinder two is fixedly connected to the side surface of the scraping plate, an adjusting member acting on the scraping plate is arranged on the inner wall of the filtering box; the adjusting member comprises a cleaning groove and a return groove formed in the inner wall of the filtering box, the return groove and the cleaning groove are connected through two inclined grooves between the two ends of the return groove and the cleaning groove, and the two inclined grooves are parallel to each other; the material adding mechanism comprises a sealing box arranged on the top surface of the installation plate, a piston slidingly arranged in the sealing box and an annular box rotatably arranged on the outer wall of the hollow shaft, the annular box is fixedly connected to the top surface of the first tank cover, a plurality of liquid inlet holes are formed in the outer wall of the hollow shaft in the annular box, the piston is fixedly connected to the connecting rod one, the sealing box and the annular box are connected through a liquid outlet pipe, a one-way liquid outlet valve is arranged on the outer wall of the liquid outlet pipe, the filtering box and the sealing box are connected through a liquid inlet pipe, and a one-way liquid inlet valve is arranged on the outer wall of the liquid inlet pipe; The driving mechanism comprises a circular plate fixedly connected to the top of the hollow shaft, an annular groove formed in the top surface of the circular plate and a short cylinder one slidingly arranged in the annular groove, a rectangular cavity is formed in the short cylinder one, a control member acting on the short cylinder one is arranged in the rectangular cavity, and an annular plate is slidingly arranged on the outer wall of the short cylinder one; one side surface of the annular plate is fixedly connected to the connecting rod one; The control member comprises a triangular clamping block slidingly arranged in the rectangular cavity, a compression spring two is arranged between the triangular clamping block and the rectangular cavity, and a plurality of triangular clamping grooves are uniformly formed in the inner wall of the annular groove in cooperation with the triangular clamping block; The connecting piece two comprises a connecting frame fixedly connected to the connecting rod two, a rectangular groove is symmetrically formed in the scraping plate in cooperation with the connecting frame, the connecting frame is slidingly arranged in the rectangular groove, and a compression spring one is arranged in the rectangular groove above; The driving member comprises a gear one fixedly connected to the outer wall of the hollow shaft, a short shaft rotatably arranged on the top of the first tank cover through an L-shaped support, a gear two meshing with the gear one is fixedly connected to the top of the short shaft, a micro motor is arranged at the bottom, and the micro motor is installed on the top of the first tank cover. The connecting piece one comprises a gas guide pipe one arranged on the top surface of the can cover one, a gas guide pipe two arranged on the can cover two, a check valve arranged on the gas guide pipe two, an adjusting valve one arranged at one end of the gas guide pipe two, the adjusting valve one being communicated with the gas guide pipe one, and the can cover two further comprising a gas guide pipe three, and an adjusting valve two arranged on the gas guide pipe three.

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