Composite biological organic bacterial fertilizer production fermentation tank

Abstract

The utility model discloses a composite biological organic bacterial fertilizer production fermentation tank, relates to the technical field of fermentation, and aims to solve the technical problems of oxygen diffusion blocking, fermentation efficiency reduction and peculiar smell gas generation caused by floating foam accumulation due to non-uniform aeration and insufficient stirring when high-moisture materials are fermented, and the composite biological organic bacterial fertilizer production fermentation tank comprises a tank body, a stirring mechanism is arranged at the lower end in the tank body, an aeration mechanism is arranged on the side surface of the stirring mechanism, and a defoaming mechanism is arranged at the upper end in the tank body. The floating foam removing efficiency is optimized through the collaborative design of the guide groove and the bucket, the guide groove adopts an inward inclined slope structure for directional flow guide, floating foam captured by the bucket slides into the temporary storage basin body, the liquid level retention amount is reduced to improve the oxygen diffusion condition, the front end of the bucket is open, the side wall is gradually expanded in a trapezoidal structure, the floating foam gathering range is enlarged, and the floating foam removing efficiency is improved. According to the combination, the local anaerobic risk is reduced through physical diversion, and the problems of fermentation efficiency reduction and peculiar smell caused by floating foam accumulation are relieved through cooperative operation of a stirring mechanism and an aeration mechanism.

Description

Technical Field

[0001] This utility model relates to the field of fermentation technology, and more specifically, to a compound biological organic fertilizer production fermentation tank. Background Technology

[0002] Compound bio-organic fertilizer is a functional fertilizer made from agricultural organic waste (such as kitchen waste and livestock manure) through synergistic fermentation by a complex microbial community. It improves soil and promotes crop growth. In rural areas, traditional organic fertilizer production relies heavily on open-air composting or simple fermentation tanks, which suffer from long production cycles, strong odors, and susceptibility to weather conditions. In recent years, some farmers have begun using small-scale fermentation tanks for closed fermentation, accelerating the decomposition process through stirring and aeration.

[0003] Existing small-scale fermentation tanks used in rural areas often produce foam on the liquid surface when fermenting high-moisture materials (such as kitchen waste and manure) due to uneven aeration or insufficient stirring. This foam hinders oxygen diffusion, creating a localized anaerobic environment, which not only reduces fermentation efficiency but may also breed harmful bacteria and release odorous gases such as hydrogen sulfide. Therefore, we propose a compound bio-organic fertilizer production fermentation tank. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a compound biological organic fertilizer production fermentation tank to solve the technical problems of uneven aeration and insufficient stirring during the fermentation of high-moisture materials, which leads to foam accumulation, obstructed oxygen diffusion, reduced fermentation efficiency, and generation of odorous gases.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a compound biological organic fertilizer production fermentation tank, including a tank body, a stirring mechanism arranged at the lower end of the tank body, an aeration mechanism arranged on the side of the stirring mechanism, a defoaming mechanism arranged at the upper end of the tank body, and the defoaming mechanism is connected to the stirring mechanism, and an outer shell arranged at the lower end of the tank body.

[0006] The defogging mechanism includes a basin, with guide grooves arranged on both sides of the outside of the basin, a notch arranged on the front surface of the guide groove, and a bucket arranged on the notch.

[0007] Preferably, the lower end of the tank body is shaped like a frustum cone, a tank cover is rotatably installed on the upper end of the tank body, a breather cap is arranged on the tank cover, and a discharge port is obliquely arranged on the lower end of the tank body, with a sealing cap rotatably installed on the discharge port.

[0008] Preferably, the stirring mechanism includes a shaft rotatably mounted in the middle of the tank, with helical blades arranged on the middle side of the shaft, and inclined plates arranged symmetrically and oppositely on both sides of the lower end of the shaft.

[0009] Preferably, the stirring mechanism further includes a drive motor fixed inside one end of the housing, and the output end of the drive motor is connected to the lower end surface of the shaft through a gear set.

[0010] Preferably, the aeration mechanism includes a pump body fixed inside the outer shell at the other end, the output end of the pump body is connected to a pipe, one end of the pipe is connected to an aeration head, and the aeration head is arranged inside the lower end of the tank.

[0011] Preferably, a column is arranged in the middle of the inside of the basin, and an insertion port is opened in the column. A rod is inserted into the insertion port, and the lower end of the rod is connected to the upper end of the shaft. Both the insertion port and the rod are in the shape of a cross. Floats are arranged on the outer surface of the basin and the guide groove.

[0012] Preferably, the guide groove has an inclined structure, with one of its inclined ends connected to the interior of the basin, and the bucket is a trapezoidal groove with an open front end and outwardly expanding side walls.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the design of a guide trough and bucket structure, enables directional collection and treatment of surface foam during aeration and stirring. The guide trough adopts an inwardly inclined slope structure, which guides the foam captured by the bucket to slide along the inclined surface to the basin for temporary storage, thereby reducing the amount of foam remaining on the liquid surface and mitigating its obstruction of oxygen diffusion. The bucket adopts a trapezoidal trough configuration with an open front end and gradually expanding side walls, which helps to expand the foam aggregation range and enhance the capture capacity of surface foam. This structural combination improves the gas exchange environment inside the tank through physical flow guidance, reducing the probability of the formation of local anaerobic areas.

[0015] 2. This utility model designs a plug and rod structure, which are connected in a sleeve installation structure, allowing the basin to float and rise along the rod. This enables the bucket to dynamically adjust the defoaming depth according to the material level. The linkage design of the cross-shaped plug and rod ensures that the rotation of the shaft drives the column to rotate synchronously, causing the basin to move circumferentially to expand the foam removal range. The horizontal alignment of the float and the bucket maintains the working state of the bucket being partially submerged in the liquid. The rotation trajectory improves the capture efficiency of surface foam. The guide trough receives the foam transferred from the bucket and temporarily stores it in the basin.

[0016] 3. This utility model optimizes the discharge path of materials inside the tank by designing an inclined plate and a discharge port structure. The inclined plate is fixed to the stirring shaft at a specific angle, and its end maintains a moderate gap with the inner wall of the tank. When the shaft rotates counterclockwise, the tangential thrust generated by the inclined plate can gradually guide the fermented organic fertilizer to the discharge port area. The discharge port adopts an inclined tubular structure design, and its axis forms a complementary angle with the trajectory of the inclined plate. This allows the material pushed to the discharge port to slide down naturally under the dual action of gravity and mechanical thrust, reducing the possibility of adhesion or blockage on the inner wall of the channel. At the same time, the inclined plate can also serve as an auxiliary stirring element during the non-discharge stage, working with the main spiral blades to improve the uniformity of material mixing, forming a dual-function integrated design of "stirring-discharge", which helps to improve the operating efficiency and ease of operation of the fermentation tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention from the front view.

[0019] Figure 3 This is a schematic diagram of the defoaming mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the aeration mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the tank of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Tank body; 2. Agitator; 201. Shaft; 202. Spiral blade; 203. Inclined plate; 204. Drive motor; 205. Gear set; 3. Aeration mechanism; 301. Pump body; 302. Pipeline; 303. Aeration head; 4. Defoaming mechanism; 401. Basin; 402. Guide groove; 403. Notch; 404. Bucket; 405. Column; 406. Inlet; 407. Insert rod; 408. Float; 5. Outer shell; 6. Tank lid; 7. Breathing cap; 8. Discharge port. Detailed Implementation

[0025] like Figures 1 to 6As shown, the present invention relates to a compound biological organic fertilizer production fermentation tank, including a tank body 1, a stirring mechanism 2 arranged at the lower end of the tank body 1, an aeration mechanism 3 arranged on the side of the stirring mechanism 2, a defoaming mechanism 4 arranged at the upper end of the tank body 1, and the defoaming mechanism 4 is connected to the stirring mechanism 2, and an outer shell 5 is arranged at the lower end of the tank body 1.

[0026] The defoaming mechanism 4 includes a basin 401, with guide grooves 402 arranged on both sides of the outer surface of the basin 401. A notch 403 is arranged on the front surface of the guide grooves 402, and a bucket 404 is arranged on the notch 403. This invention, through the design of the guide grooves 402 and the bucket 404, enables the directional collection and treatment of surface foam during aeration and stirring. The guide grooves 402 adopt an inwardly inclined slope structure, which guides the foam captured by the bucket 404 to slide along the inclined surface to the basin 401 for temporary storage, thereby reducing the amount of foam remaining on the liquid surface and mitigating its obstruction of oxygen diffusion.

[0027] In this embodiment of the invention, the lower end of the tank body 1 is shaped like a truncated cone, and a lid 6 is rotatably mounted on the upper end of the tank body 1. A breathing cap 7 is arranged on the lid 6. A discharge port 8 is obliquely arranged on the lower end of the tank body 1, and a sealing cap is rotatably mounted on the discharge port 8. The truncated cone shape of the lower end of the tank body 1 is designed to guide the material to naturally gather to the bottom under the action of gravity. When the spiral blades 202 rotate, they lift the material at the bottom of the tank body 1, allowing it to gather and then be conveyed downwards. This achieves large-area agitation of the material inside the tank body 1, improving stirring efficiency. The breathing cap 7 allows external gas to enter the interior of the tank body 1 through this point, aiding in the fermentation of the material inside the tank body 1.

[0028] In an embodiment of this invention, the stirring mechanism 2 includes a shaft 201 rotatably mounted in the middle of the tank 1. Spiral blades 202 are arranged on the middle side of the shaft 201, and inclined plates 203 are symmetrically arranged on both sides of the lower end of the shaft 201. This invention, through the design of the spiral blades 202, allows the material inside the tank 1 to be agitated from low to high, thereby ensuring sufficient contact between microorganisms and the material, enabling microorganisms to decompose organic matter more efficiently. Furthermore, stirring prevents localized accumulation or stratification of the material within the tank 1, ensuring that all material in the entire tank 1 participates in the fermentation process and guarantees the uniformity of fermentation. The design of the inclined plates 203 and the discharge port 8 optimizes the discharge path of the material inside the tank 1. The inclined plates 203 are fixed to the stirring shaft 201 at a specific angle, with a suitable gap between their ends and the inner wall of the tank 1. When rotating counterclockwise, the tangential thrust generated by the inclined plate 203 can gradually guide the fermented organic fertilizer to the discharge port 8 area. The discharge port 8 adopts an inclined tubular structure design, and its axis forms a complementary angle with the movement trajectory of the inclined plate 203. This allows the material pushed to the discharge port 8 to slide down naturally under the dual action of gravity and mechanical thrust, reducing the possibility of adhesion or blockage on the inner wall of the channel. At the same time, the inclined plate 203 can also be used as an auxiliary stirring element in the non-discharge stage, working with the main spiral blade 202 to improve the uniformity of material mixing, forming a dual-function integrated design of "stirring-discharge", which helps to improve the operating efficiency and operation convenience of the fermenter.

[0029] In an embodiment of this utility model, the stirring mechanism 2 further includes a drive motor 204 fixed inside one end of the outer casing 5. The output end of the drive motor 204 is connected to the lower end surface of the shaft 201 via a gear set 205. The gear set 205 consists of a bevel gear A mounted on the output end of the drive motor 204 and a bevel gear B mounted on the shaft 201. By designing the structure of the drive motor 204 and the gear set 205, the shaft 201 can rotate, achieving the effect of power output.

[0030] In an embodiment of this invention, the aeration mechanism 3 includes a pump body 301 fixed inside the outer casing 5 at one end. The output end of the pump body 301 is connected to a pipe 302, and one end of the pipe 302 is connected to an aeration head 303, which is located at the lower end of the tank 1. By designing the structure of the pump body 301, pipe 302, and aeration head 303, this invention allows gas to be actively transported into the tank 1, aerating the materials placed inside and providing sufficient oxygen to the microorganisms within the tank 1. Under the action of aerobic microorganisms, organic matter can be degraded more quickly.

[0031] In an embodiment of this utility model, a column 405 is arranged in the middle of the inside of the basin 401. An insertion port 406 is opened in the column 405. An insertion rod 407 is inserted into the insertion port 406, and the lower end of the insertion rod 407 is connected to the upper end of the shaft 201. Both the insertion port 406 and the insertion rod 407 are in the shape of a cross. Floats 408 are arranged on the outer surfaces of the basin 401 and the guide groove 402. By designing the structure of the inlet 406 and the rod 407, which are connected in a sleeve-like manner, the basin 401 can float and rise along the rod 407, thereby allowing the bucket 404 to dynamically adjust the defoaming depth according to the material liquid level. The linkage design of the cross-shaped inlet 406 and the rod 407 ensures that when the shaft 201 rotates, it drives the column 405 to rotate synchronously, causing the basin 401 to move circumferentially to expand the foam removal range. The horizontal alignment of the float 408 and the bucket 404 maintains the working state of the bucket 404 being partially submerged in the liquid, and the rotation trajectory improves the capture efficiency of surface foam. The guide trough 402 receives the foam transferred from the bucket 404 and temporarily stores it in the basin 401.

[0032] In this embodiment of the invention, the guide groove 402 has an inclined structure, with its lower inclined end connected to the interior of the basin 401. The bucket 404 is a trapezoidal groove with an open front end and outwardly expanding side walls. The bucket 404 of this invention adopts a trapezoidal groove configuration with an open front end and gradually expanding side walls, which helps to expand the foam aggregation range and enhance the capture capacity of surface foam. This structural combination improves the gas exchange environment inside the tank through physical flow guidance, reducing the probability of the formation of local anaerobic areas.

[0033] Working Principle: This embodiment provides a compound biological organic fertilizer production fermentation tank. When using it, the operator must first place it at the designated location. After placement and securing, the operator can connect an external power supply to the device and control its operation via a controller. The operator places a ladder or other climbing tools on the side of the tank 1. After placing the ladder, the operator climbs to the top of the tank 1, grasps the handle, and applies force to flip open the lid 6. After the lid 6 is open, the operator can pour kitchen waste and feces into the tank 1. After pouring in an appropriate amount, the operator moves the basin 401 within the defoaming mechanism 4 into the tank 1, utilizing the vertical... The insertion port 406 inside column 405 is aligned with the insertion rod 407 and inserted, so that basin 401 slides onto insertion rod 407. Basin 401 will float on the liquid inside tank 1 with the help of float 408, allowing bucket 404 to be partially immersed in the liquid without the liquid directly entering guide groove 402. After preparation, the operator rotates to close tank cover 6. After tank cover 6 is closed, the operator starts drive motor 204. Drive motor 204 drives shaft 201 to rotate clockwise through gear set 205 installed at output end. After shaft 201 rotates, the spiral blades 202 installed on its surface will also rotate. After rotation, the material at the bottom of tank 1 will be carried to the top of tank 1. At this time, the operator needs to start pump 301. Pump 301 operates and delivers gas to aeration head 303 through pipe 302. Aeration head 303 aerates the material. The rotation of spiral blade 202 ensures that the material is fully aerated and evenly mixed. During aeration, foam will be generated on the surface of the liquid inside tank 1. At this time, the bucket 404 is driven synchronously by rod 407 and inlet 406 to scoop the foam into guide trough 402. The inclined slope in guide trough 402 guides the foam to basin 401 for temporary storage. When stirring... After the aeration process is completed, the staff can stop the operation of the drive motor 204 and the pump 301, allowing the material to remain in the tank 1 for fermentation and composting. Once the material in the tank 1 has finished fermenting, the staff rotates the cover on the discharge port 8. After the cover is removed, the staff controls the drive motor 204 to rotate the shaft 201 counterclockwise. This causes the spiral blades 202 and the inclined plate 203 mounted on the shaft 201 to rotate counterclockwise. The counterclockwise rotating spiral blades 202 push the material in the tank 1 downwards, while the counterclockwise inclined plate 203 pushes the material at the bottom of the tank 1 into the discharge port 8, where it is actively discharged.

[0034] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A compound bio-organic fertilizer production fermentation tank, comprising a tank body (1), characterized in that: The tank (1) has a stirring mechanism (2) arranged at the lower end inside, an aeration mechanism (3) arranged on the side of the stirring mechanism (2), a defoaming mechanism (4) arranged at the upper end inside, and the defoaming mechanism (4) is connected to the stirring mechanism (2). The tank (1) has an outer shell (5) arranged at the lower end outside. The defogging mechanism (4) includes a basin (401), and guide grooves (402) are arranged on both sides of the outside of the basin (401). A notch (403) is arranged on the front surface of the guide groove (402), and a bucket (404) is arranged on the notch (403).

2. The compound bio-organic fertilizer production fermentation tank according to claim 1, characterized in that: The lower end of the tank body (1) is shaped like a truncated cone. A tank cover (6) is rotatably installed on the upper end of the tank body (1). A breathing cap (7) is arranged on the tank cover (6). A discharge port (8) is obliquely arranged on the lower end of the tank body (1). A sealing cap is rotatably installed on the discharge port (8).

3. The compound bio-organic fertilizer production fermentation tank according to claim 2, characterized in that: The stirring mechanism (2) includes a shaft (201) rotatably installed in the middle of the tank (1), with spiral blades (202) arranged on the middle side of the shaft (201), and inclined plates (203) arranged symmetrically on both sides of the lower end of the shaft (201).

4. The compound bio-organic fertilizer production fermentation tank according to claim 3, characterized in that: The stirring mechanism (2) also includes a drive motor (204) fixed inside one end of the outer shell (5), and the output end of the drive motor (204) is connected to the lower end surface of the shaft (201) through a gear set (205).

5. The compound bio-organic fertilizer production fermentation tank according to claim 4, characterized in that: The aeration mechanism (3) includes a pump body (301) fixed inside the other end of the outer shell (5). The output end of the pump body (301) is connected to a pipe (302). One end of the pipe (302) is connected to an aeration head (303), and the aeration head (303) is arranged inside the lower end of the tank (1).

6. The compound bio-organic fertilizer production fermentation tank according to claim 5, characterized in that: A column (405) is arranged in the middle of the inside of the basin (401). A socket (406) is opened in the column (405). A rod (407) is inserted into the socket (406), and the lower end of the rod (407) is connected to the upper end of the shaft (201). Both the socket (406) and the rod (407) are in the shape of a cross. Floats (408) are arranged on the outer surface of the basin (401) and the guide groove (402).

7. A compound bio-organic fertilizer production fermentation tank according to claim 6, characterized in that: The guide groove (402) has an inclined structure, and its inclined end is connected to the interior of the basin (401). The bucket (404) is a trapezoidal groove with an open front end and outward expansion of the side walls.

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