A bio-fertilizer fermentation tank with an air-filling and stirring device

Abstract

This invention discloses a bio-fertilizer fermentation tank with an air-supplementing and stirring device, belonging to the technical field of fermentation devices. It includes a base, a tank body mounted on the top of the base, and an air-supplementing mechanism inside the tank body. This mechanism includes an air pump mounted on the outer surface of the tank body. The output end of the air pump is connected to an air inlet pipe, which is connected to the interior of the tank body. The input end of the air pump is connected to a sterile generator for introducing sterile air. A mixing mechanism is also installed inside the tank body, including a motor mounted on the top of the tank body. This invention uses the air pump to introduce sterile air generated by the sterile generator into a fixed rod, which is then evenly released into the bio-fertilizer inside the tank body through multiple air outlets on the outer surface of the fixed rod. This design ensures that the sterile air is evenly distributed and integrated into the bio-fertilizer, providing sufficient and uniform oxygen supply for aerobic microorganisms, maintaining good metabolic activity of the microorganisms, and thus improving the fermentation effect of the bio-fertilizer.

Description

Technical Field

[0001] This invention relates to the field of fermentation equipment technology, and in particular to a bio-fertilizer fermentation tank with an aeration and stirring device. Background Technology

[0002] In the production of bio-fertilizer, the fermentation process is crucial, and the fermentation tank, as the core equipment for bio-fertilizer fermentation, directly affects the fermentation effect and quality. Continuous aeration is a key factor in maintaining the metabolic activity of aerobic microorganisms. Aerobic microorganisms require sufficient oxygen for respiration during fermentation to maintain their normal life activities and metabolic functions, thereby converting organic matter into the effective components of bio-fertilizer. In actual fermentation tank aeration operations, improper operation or design flaws can lead to decreased efficiency. Uneven aeration, in particular, can prevent some microorganisms from obtaining enough oxygen, thus affecting their metabolic activity and reducing fermentation efficiency. Conversely, excessive aeration or excessively fast airflow may damage microorganisms, disrupting their cell structure, affecting their normal growth and reproduction, or even causing microbial death, ultimately impacting the fermentation quality of the bio-fertilizer. Summary of the Invention

[0003] The purpose of this invention is to provide a bio-fertilizer fermentation tank with an aeration and stirring device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bio-fertilizer fermentation tank with an air-injection and stirring device, comprising a base, a tank body mounted on the top of the base, an air-injection mechanism disposed inside the tank body, the air-injection mechanism comprising an air pump mounted on the outer surface of the tank body, an air inlet pipe connected to the output end of the air pump and connected to the interior of the tank body, a sterile generator for introducing sterile air connected to the input end of the air pump, a mixing mechanism disposed inside the tank body, the mixing mechanism comprising a motor mounted on the top of the tank body, a fixing rod fixedly mounted on the output shaft of the motor, an air collecting plate fixedly mounted on the outer surface of the fixing rod, the air inlet pipe connected to the interior of the fixing rod through the air collecting plate, and multiple air outlet holes for air injection opened on the outer surface of the fixing rod, and multiple defoaming components for removing air bubbles disposed on the outer surface of the fixing rod.

[0005] As a preferred embodiment of the present invention, the defoaming assembly includes a plurality of spiral scrapers disposed on the outer surface of a fixed rod. A groove is provided on the outer surface of the fixed rod. A slider is fixedly installed at one end of each spiral scraper and is slidably installed inside the groove. A float plate is fixedly installed at the free end of each spiral scraper.

[0006] As a preferred embodiment of the present invention, the float plate has an arc-shaped cross section and an activated carbon adsorption plate is provided inside the float plate. The float plate is made of high-density polyethylene material.

[0007] As a preferred embodiment of the present invention, the air intake pipe is provided with an air filter assembly, the air filter assembly including a filter box connected to and installed on the air intake pipe, and the interior of the filter box is provided with multiple layers of breathable and waterproof membrane.

[0008] As a preferred embodiment of the present invention, the tank body is provided with a turning assembly. The turning assembly includes an annular frame fixedly installed inside the tank body. Multiple telescopic members are fixedly installed on the inner surface of the annular frame near the fixed rod. A push plate for turning the bio-fertilizer is fixedly installed on the free end of the telescopic member. Multiple conical spikes are fixedly installed on the outer surface of the push plate. An exhaust pipe is connected to the input end of the air pump. The exhaust pipe is connected to the interior of the telescopic member through the annular frame, and the air inlet pipe is connected to the interior of the annular frame through a connecting pipe.

[0009] As a preferred embodiment of the present invention, an auxiliary component is provided between the connecting pipe and the exhaust pipe. The auxiliary component includes a first fixing plate fixedly mounted on the exhaust pipe and a second fixing plate rotatably mounted on the connecting pipe. The first fixing plate has a connecting hole near the connecting pipe, and the second fixing plate has a connecting hole near the interior of the exhaust pipe. A sealing gasket is provided between the first fixing plate and the second fixing plate. A first bevel gear is fixedly mounted on the outer surface of the second fixing plate, and a second bevel gear is fixedly mounted on the outer surface of the fixing rod. The first bevel gear and the second bevel gear mesh with each other.

[0010] As a preferred embodiment of the present invention, a first sealing plate and a second sealing plate are respectively fixedly installed on the surfaces of the first fixing plate and the second fixing plate, and the arc end of one end of the first sealing plate is inserted into and sealed with the arc groove of the second sealing plate.

[0011] As a preferred embodiment of the present invention, a cooling inner tube for cooling bio-fertilizer material is fixedly installed inside the fixing rod, and a plurality of stirring rods for stirring bio-fertilizer are fixedly installed at the bottom end of the fixing rod. The cooling inner tube is connected to the inside of the stirring rods. An inner cavity for replenishing air is provided between the cooling inner tube and the fixing rod, and the inner cavity is connected to the inside of the tank through an air outlet.

[0012] As a preferred embodiment of the present invention, a water tank is fixedly installed on the inner bottom wall of the tank, a negative pressure plate is connected to one end of the fixing rod located inside the water tank, a screw is fixedly installed at the bottom end of the negative pressure plate, a threaded sleeve is threaded on the outer surface of the screw, a movable plate is slidably installed inside the water tank, and the movable plate is fixedly connected to the threaded sleeve, and a limit rod is fixedly installed inside the water tank, and the limit rod slides through the movable plate.

[0013] As a preferred embodiment of the present invention, a storage tank for storing fermented bio-fertilizer is fixedly installed on the outside of the tank body, and the storage tank is connected to the bottom of the tank body through a one-way valve.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention uses an air pump to introduce sterile air generated by a sterile generator into the interior of a fixed rod through an air inlet pipe and an air collecting plate. Then, the air is evenly released into the bio-fertilizer inside the tank through multiple air outlets on the outer surface of the fixed rod. This design ensures that the sterile air is evenly distributed and integrated into the interior of the bio-fertilizer, providing a sufficient and uniform oxygen supply for aerobic microorganisms, maintaining good metabolic activity of microorganisms, and thus improving the fermentation effect of the bio-fertilizer.

[0016] 2. This invention features a defoaming component on the outer surface of a fixed rod. The floating plate is made of high-density polyethylene and floats on the surface of the fermentation liquid. As stirring proceeds, the spiral scraper slides within the trough, moving the floating plate across the surface of the fermentation liquid. This effectively removes and eliminates the foam generated during fermentation, preventing foam from covering the surface of the fermentation liquid and hindering air contact with the liquid, thus reducing the oxygen transfer coefficient. This ensures normal aeration and stirring, as well as the respiration and metabolism of microorganisms, guaranteeing the smooth progress of the fermentation process.

[0017] 3. This invention utilizes an auxiliary component to enable an air pump to intermittently introduce and release air into the interior of the telescopic component, thereby driving the push plate to extend, retract, and move. Multiple cones on the push plate can penetrate deep into the bio-fertilizer, thoroughly and deeply mixing the bio-fertilizer, making the components of the bio-fertilizer more uniform, creating a more consistent fermentation environment for microorganisms, and improving the overall fermentation quality of the bio-fertilizer.

[0018] 4. In this invention, during the mixing of bio-fertilizer, the fixed rod drives the screw to rotate. The screw engages with the threaded sleeve, and under the limiting action of the limiting rod, the threaded sleeve drives the moving plate to move back and forth in the water tank. This allows the cooling water in the water tank to continuously flow inside the stirring rod, which can promptly remove the heat generated during the fermentation of bio-fertilizer, achieving uninterrupted cooling of the bio-fertilizer. This provides a suitable temperature environment for microorganisms, avoiding the inhibition of microbial activity or even the death of microorganisms due to high temperatures, thereby optimizing the fermentation environment and improving the fermentation effect.

[0019] 5. By installing an air filter assembly on the air inlet pipe, the multi-layer breathable and waterproof membrane inside the filter box can effectively filter the air entering the tank, preventing impurities, dust, and potentially harmful microorganisms in the air from entering the fermentation tank and contaminating the bio-fertilizer fermentation environment. This ensures the safety of the fermentation process and helps produce high-quality bio-fertilizer products. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the tank of the present invention;

[0022] Figure 3 This is a schematic diagram of the stirring rod structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the cooling inner tube structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the auxiliary component of the present invention;

[0025] Figure 6 This is a schematic diagram of the air pump structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the pusher plate structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the floating plate structure of the present invention.

[0028] In the diagram: 1. Base; 2. Tank; 3. Air supply mechanism; 31. Storage tank; 32. Aseptic generator; 33. Air pump; 34. Air inlet pipe; 35. Auxiliary components; 351. First fixing plate; 352. First sealing plate; 353. Second sealing plate; 354. Second fixing plate; 355. First bevel gear; 356. Second bevel gear; 357. Sealing gasket; 358. Connecting hole; 36. Air filtration assembly; 37. Tilting assembly Components; 371. Exhaust pipe; 372. Ring frame; 373. Telescopic component; 374. Push plate; 38. Defogging assembly; 381. Float plate; 382. Spiral scraper; 383. Slide groove; 39. Air collection plate; 4. Mixing mechanism; 41. Motor; 42. Fixing rod; 43. Stirring rod; 44. Water tank; 45. Negative pressure plate; 46. Screw; 47. Limiting rod; 48. Moving plate; 49. Threaded sleeve; 410. Cooling inner tube. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-8 This invention provides a bio-fertilizer fermentation tank with an air-injection and stirring device, including a base 1, a tank body 2 mounted on the top of the base 1, an air-injection mechanism 3 inside the tank body 2, the air-injection mechanism 3 including an air pump 33 mounted on the outer surface of the tank body 2, an air inlet pipe 34 connected to the output end of the air pump 33 and connected to the interior of the tank body 2, and a sterile generator 32 for introducing sterile air connected to the input end of the air pump 33, a mixing mechanism 4 inside the tank body 2, the mixing mechanism 4 including a motor 41 mounted on the top of the tank body 2, a fixing rod 42 fixedly mounted on the output shaft of the motor 41, an air collecting plate 39 fixedly mounted on the outer surface of the fixing rod 42, and the air inlet pipe 34 connected to the interior of the fixing rod 42 through the air collecting plate 39, and multiple air outlet holes for air injection on the outer surface of the fixing rod 42, and multiple defoaming components 38 for removing air bubbles on the outer surface of the fixing rod 42.

[0031] In the bio-fertilizer fermentation tank, the base 1 supports the tank body 2, and the tank body 2 is equipped with an air replenishment mechanism 3 and a mixing mechanism 4. The air replenishment mechanism 3 introduces sterile air generated by the sterile generator 32 into the tank body 2 through the air inlet pipe 34 via the air pump 33, so that the sterile air is integrated into the interior of the bio-fertilizer, resulting in better fermentation. The mixing mechanism 4 is driven by the motor 41 to rotate the fixed rod 42. The air inlet pipe 34 is connected to the interior of the fixed rod 42 through the air collection plate 39. After the sterile air enters the fixed rod 42, it is discharged from the air outlet on its outer surface to replenish the air. At the same time, the fixed rod 42 rotates to stir the bio-fertilizer, and the fixed rod 42 is equipped with a defoaming component 38 to remove air bubbles, resulting in better fermentation.

[0032] In some embodiments, the defoaming assembly 38 includes a plurality of spiral scrapers 382 disposed on the outer surface of the fixed rod 42. The outer surface of the fixed rod 42 is provided with a groove 383. A slider is fixedly installed at one end of the spiral scraper 382 and the slider is slidably installed inside the groove 383. A float plate 381 is fixedly installed at the free end of the spiral scraper 382.

[0033] During fermentation, foaming substances such as proteins generate a large amount of foam under strong aeration and stirring. The foam covers the surface of the fermentation liquid, hindering the contact between air and the fermentation liquid, reducing the oxygen transfer coefficient, and in severe cases, aeration and stirring cannot be carried out, affecting the respiration and metabolism of microorganisms. Therefore, the motor 41 drives the spiral scraper 382 and the float plate 381 to rotate, and the float plate 381 floats on the surface of the fermentation liquid, thus effectively scraping off the foam on the surface of the fermentation liquid, preventing the foam from covering the surface of the fermentation liquid and hindering the contact between air and the fermentation liquid, ensuring the oxygen transfer coefficient, maintaining normal aeration and stirring, and benefiting the respiration and metabolism of microorganisms.

[0034] In some embodiments, the float plate 381 has an arc-shaped cross section, and an activated carbon adsorption plate is provided inside the float plate 381. The float plate 381 is made of high-density polyethylene material.

[0035] The arc-shaped design increases the contact area with the fermentation liquid surface, maximizing defoaming, and the high-density polyethylene material gives the float 381 good buoyancy and corrosion resistance; the activated carbon adsorption plate can adsorb some harmful gases and impurities, reducing the hazards of gas leaks.

[0036] In some embodiments, an air filter assembly 36 is provided on the air intake pipe 34. The air filter assembly 36 includes a filter box connected to the air intake pipe 34, and the interior of the filter box is provided with multiple layers of breathable and waterproof membrane.

[0037] The filter box is connected to the air inlet pipe 34 and has multiple layers of breathable and waterproof membranes inside. When air enters the tank 2 through the air inlet pipe 34, it must pass through the filter box. The multiple layers of membranes filter the air, effectively filtering impurities, dust and harmful microorganisms in the air entering the tank 2, preventing pollution of the bio-fertilizer fermentation environment, and ensuring the safety of the fermentation process and the quality of the bio-fertilizer.

[0038] In some embodiments, a turning assembly 37 is provided inside the tank body 2. The turning assembly 37 includes an annular frame 372 fixedly installed inside the tank body 2. Multiple telescopic members 373 are fixedly installed on the inner surface of the annular frame 372 near the fixed rod 42. A push plate 374 for turning the bio-fertilizer is fixedly installed on the free end of the telescopic member 373. Multiple cones are fixedly installed on the outer surface of the push plate 374. An exhaust pipe 371 is connected to the input end of the air pump 33. The exhaust pipe 371 is connected to the interior of the telescopic member 373 through the annular frame 372. The air inlet pipe 34 is connected to the interior of the annular frame 372 through a connecting pipe.

[0039] The air pump 33 has an input end connected to the exhaust pipe 371. The exhaust pipe 371 is connected to the inside of the telescopic component 373 through the annular frame 372. The air inlet pipe 34 is connected to the inside of the annular frame 372 through the connecting pipe. By controlling the gas to enter and exit the annular frame 372 and the telescopic component 373, the telescopic component 373 is extended and retracted, which drives the push plate 374 to move. The cones on the push plate 374 can penetrate deep into the bio-fertilizer to achieve all-round and deep mixing, making the bio-fertilizer components more uniform, creating a good fermentation environment for microorganisms, and improving the fermentation effect.

[0040] In some embodiments, an auxiliary component 35 is provided between the connecting pipe and the exhaust pipe 371. The auxiliary component 35 includes a first fixing plate 351 fixedly mounted on the exhaust pipe 371 and a second fixing plate 354 rotatably mounted on the connecting pipe. The first fixing plate 351 has a connecting hole 358 near the connecting pipe, and the second fixing plate 354 has a connecting hole 358 near the interior of the exhaust pipe 371. A sealing gasket 357 is provided between the first fixing plate 351 and the second fixing plate 354. A first bevel gear 355 is fixedly mounted on the outer surface of the second fixing plate 354, and a second bevel gear 356 is fixedly mounted on the outer surface of the fixing rod 42, and the first bevel gear 355 and the second bevel gear 356 mesh.

[0041] Among them, the motor 41 drives the second bevel gear 356 to rotate, the second bevel gear 356 drives the first bevel gear 355 to rotate, and the first bevel gear 355 drives the second fixed plate 354 to rotate. For this purpose, gas flow is achieved between the connecting pipe and the exhaust pipe 371 through the connecting hole 358, which provides power support for the air pump 33 to intermittently introduce and release air into the telescopic component 373, ensuring the telescopic use of the telescopic component 373, and at the same time realizing the flipping of the push plate 374 to improve the fermentation effect.

[0042] In some embodiments, a first sealing plate 352 and a second sealing plate 353 are fixedly installed on the surfaces of the first fixing plate 351 and the second fixing plate 354, respectively, and the arc end of one end of the first sealing plate 352 is inserted into and sealed with the arc groove of the second sealing plate 353.

[0043] When the second fixing plate 354 rotates to a certain position, the first sealing plate 352 and the second sealing plate 353 are respectively installed on the surfaces of the first fixing plate 351 and the second fixing plate 354. The arc end of the first sealing plate 352 is inserted into the arc groove of the second sealing plate 353 to seal. The arc end is inserted into the arc groove to achieve a seal, preventing gas from passing through, enhancing the sealing between the connecting pipe and the exhaust pipe 371, preventing gas leakage, ensuring the accuracy of the air pump 33 in controlling the gas inside the telescopic component 373, and ensuring the stable operation of the flipping assembly 37.

[0044] In some embodiments, a cooling inner tube 410 for cooling bio-fertilizer material is fixedly installed inside the fixing rod 42, and a plurality of stirring rods 43 for stirring bio-fertilizer are fixedly installed at the bottom end of the fixing rod 42. The cooling inner tube 410 is connected to the interior of the stirring rods 43. An inner cavity for replenishing air is provided between the cooling inner tube 410 and the fixing rod 42, and the inner cavity is connected to the interior of the tank 2 through an air outlet.

[0045] The cooling inner tube 410 is fixedly installed inside the fixing rod 42. An inner cavity for gas replenishment is set between the cooling inner tube 410 and the fixing rod 42 to facilitate gas replenishment inside the tank 2. When the stirring rod 43 rotates, it can directly mix and stir the bio-fertilizer, thus realizing the integration of stirring, gas replenishment and cooling functions.

[0046] In some embodiments, a water tank 44 is fixedly installed on the inner bottom wall of the tank body 2. A negative pressure plate 45 is connected to one end of the fixing rod 42 located inside the water tank 44. A screw 46 is fixedly installed at the bottom end of the negative pressure plate 45. A threaded sleeve 49 is threaded on the outer surface of the screw 46. A movable plate 48 is slidably installed inside the water tank 44 and is fixedly connected to the threaded sleeve 49. A limit rod 47 is fixedly installed inside the water tank 44 and slides through the movable plate 48.

[0047] During the mixing process, the fixed rod 42 drives the screw 46 to rotate, and the moving plate 48 is limited by the limiting rod 47. The screw 46 drives the threaded sleeve 49 to move back and forth, and the threaded sleeve 49 drives the moving plate 48 to move back and forth, so that the cooling water flows continuously inside the stirring rod 43, realizing uninterrupted cooling of the bio-fertilizer, enhancing the cooling water circulation effect, improving the cooling efficiency of the bio-fertilizer, ensuring stable fermentation temperature, and being conducive to the growth and metabolism of microorganisms.

[0048] In some embodiments, a storage tank 31 for storing fermented bio-fertilizer is fixedly installed on the outside of the tank body 2, and the storage tank 31 is connected to the bottom of the tank body 2 through a one-way valve.

[0049] Once the bio-fertilizer fermentation in tank 2 is complete, under pressure, the bio-fertilizer flows from tank 2 into storage tank 31 through a one-way valve, ensuring the independence and stability of the fermentation process and improving production efficiency.

[0050] Working principle: In the bio-fertilizer fermentation tank, sterile air generated by the sterile generator 32 is introduced into the tank body 2 through the air inlet pipe 34 via the air pump 33. The air inlet pipe 34 is connected to the inside of the fixed rod 42 through the air collecting plate 39. After entering the fixed rod 42, the sterile air is discharged from the air outlet on its outer surface to replenish the air, so that the sterile air is integrated into the interior of the bio-fertilizer and the fermentation effect is better. At the same time, the motor 41 drives the spiral scraper 382 and the float plate 381 to rotate. The float plate 381 floats on the surface of the fermentation liquid, so it can effectively scrape off the foam on the surface of the fermentation liquid, prevent the foam from covering the surface of the fermentation liquid and hindering the contact between the air and the fermentation liquid, ensure the oxygen transfer coefficient, maintain normal ventilation and stirring, and facilitate the respiration and metabolism of microorganisms.

[0051] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A bio-fertilizer fermentation tank with an aeration and stirring device, comprising a base (1), characterized in that: A tank (2) is installed at the top of the base (1). An air replenishment mechanism (3) is provided inside the tank (2). The air replenishment mechanism (3) includes an air pump (33) installed on the outer surface of the tank (2). An air inlet pipe (34) is connected to the output end of the air pump (33), and the air inlet pipe (34) is connected to the inside of the tank (2). A sterile generator (32) for introducing sterile air is connected to the input end of the air pump (33). A mixing mechanism (4) is provided inside the tank (2). The mixing mechanism (4) includes a motor (41) installed at the top of the tank (2). The output shaft of the motor (41) is fixedly mounted with a fixing rod (42). The outer surface of the fixing rod (42) is fixedly mounted with a gas collecting plate (39). The air inlet pipe (34) is connected to the interior of the fixing rod (42) through the gas collecting plate (39). The outer surface of the fixing rod (42) is provided with multiple air outlet holes for replenishing air. The outer surface of the fixing rod (42) is provided with multiple defoaming components (38) for removing air bubbles. The defoaming assembly (38) includes a plurality of spiral scrapers (382) disposed on the outer surface of the fixed rod (42). The outer surface of the fixed rod (42) is provided with a groove (383). A slider is fixedly installed at one end of the spiral scraper (382), and the slider is slidably installed inside the groove (383). A float plate (381) is fixedly installed at the free end of the spiral scraper (382). The fixed rod (42) is fixedly installed with a cooling inner tube (410) for cooling the bio-fertilizer material. The bottom end of the fixed rod (42) is fixedly installed with a plurality of stirring rods (43) for stirring the bio-fertilizer. The cooling inner tube (410) is connected to the inside of the stirring rods (43). An inner cavity for replenishing air is provided between the cooling inner tube (410) and the fixed rod (42). The inner cavity is connected to the inside of the tank (2) through an air outlet.

2. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 1, characterized in that: The float plate (381) has an arc-shaped cross section and an activated carbon adsorption plate is provided inside the float plate (381). The float plate (381) is made of high-density polyethylene material.

3. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 1, characterized in that: The air intake pipe (34) is provided with an air filter assembly (36), which includes a filter box connected to the air intake pipe (34) and the inside of the filter box is provided with multiple layers of breathable and waterproof membrane.

4. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 1, characterized in that: The tank (2) is equipped with a turning assembly (37). The turning assembly (37) includes an annular frame (372) fixedly installed inside the tank (2). Multiple telescopic components (373) are fixedly installed on the inner surface of the annular frame (372) near the fixed rod (42). A push plate (374) for turning the bio-fertilizer is fixedly installed on the free end of the telescopic component (373). Multiple cones are fixedly installed on the outer surface of the push plate (374). An exhaust pipe (371) is connected to the input end of the air pump (33). The exhaust pipe (371) is connected to the interior of the telescopic component (373) through the annular frame (372). The air inlet pipe (34) is connected to the interior of the annular frame (372) through a connecting pipe.

5. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 4, characterized in that: An auxiliary component (35) is provided between the connecting pipe and the exhaust pipe (371). The auxiliary component (35) includes a first fixing plate (351) fixedly installed on the exhaust pipe (371) and a second fixing plate (354) rotatably installed on the connecting pipe. The first fixing plate (351) has a connecting hole (358) near the connecting pipe, and the second fixing plate (354) has a connecting hole (358) near the interior of the exhaust pipe (371). A sealing gasket (357) is provided between the first fixing plate (351) and the second fixing plate (354). A first bevel gear (355) is fixedly installed on the outer surface of the second fixing plate (354), and a second bevel gear (356) is fixedly installed on the outer surface of the fixing rod (42). The first bevel gear (355) and the second bevel gear (356) mesh with each other.

6. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 5, characterized in that: The first fixing plate (351) and the second fixing plate (354) are respectively fixedly installed with a first sealing plate (352) and a second sealing plate (353), and the arc end of one end of the first sealing plate (352) is inserted into the arc groove of the second sealing plate (353) for sealing.

7. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 1, characterized in that: A water tank (44) is fixedly installed on the inner bottom wall of the tank (2). A negative pressure plate (45) is connected to one end of the fixed rod (42) inside the water tank (44). A screw (46) is fixedly installed at the bottom end of the negative pressure plate (45). A threaded sleeve (49) is threaded on the outer surface of the screw (46). A movable plate (48) is slidably installed inside the water tank (44), and the movable plate (48) is fixedly connected to the threaded sleeve (49). A limit rod (47) is fixedly installed inside the water tank (44), and the limit rod (47) slides through the movable plate (48).

8. A bio-fertilizer fermentation tank with an aeration and stirring device according to claim 1, characterized in that: A storage tank (31) for storing fermented bio-fertilizer is fixedly installed on the outside of the tank (2), and the storage tank (31) is connected to the bottom of the tank (2) through a one-way valve.

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