Fermentation device for preparing agricultural organic fertilizer

Abstract

The invention discloses a fermentation device for agricultural organic fertilizer preparation, and relates to the technical field of agricultural organic fertilizer preparation, the fermentation device comprises a fermentation box and an overturning assembly, the overturning assembly is arranged in the fermentation box, the overturning assembly comprises a motor fixedly installed outside the bottom end of the fermentation box, and the rotating end of the motor is fixedly connected with a rotating shaft; a driving umbrella wheel is coaxially mounted at the bottom end of the rotating shaft, a lifting auger is coaxially mounted at the top end of the rotating shaft, and the outer edge of the lifting auger is in close fit with the inner wall of the middle hole of the lifting cylinder. According to the fermentation device for preparing the agricultural organic fertilizer, due to the design of the flatly-laid bowl opening, the contact area between compost raw materials and strains or water sprayed by the annular spraying pipe is increased, and the decomposition and fermentation effects of aerobic bacteria and microorganisms on the fertilizer are improved; uninterrupted turning of compost raw materials from bottom to top is achieved through rotation of the lifting auger in the lifting barrel, closed-loop rotation of the compost raw materials located in the lifting barrel and the fermentation box is formed, and it is guaranteed that the raw materials in the whole box can participate in uniform fermentation.

Description

Technical Field

[0001] This invention relates to the field of agricultural organic fertilizer preparation technology, specifically to a fermentation device for preparing agricultural organic fertilizer. Background Technology

[0002] Organic fertilizer is a type of fertilizer obtained mainly through the fermentation of animal and plant waste. After processing, toxic and harmful substances are eliminated, while a large number of beneficial substances are retained. It has the functions of providing comprehensive nutrition for crops, increasing and renewing the organic matter in the soil, and promoting the reproduction of microorganisms.

[0003] In simple terms, the fermentation of organic fertilizer involves three stages: a heating stage, a high-temperature stage, a cooling stage, and a composting and preservation stage. The first three stages involve aerobic bacteria and microorganisms decomposing and fermenting the fertilizer. During these stages, the fertilizer needs to be turned over periodically; otherwise, the accumulation of fertilizer will lead to stickiness, excessive moisture, and insufficient oxygen for aerobic bacteria. Existing fertilizer fermentation devices often result in very high fertilizer piles. Even with a stirring device, the lower the pile, the less oxygen it receives, and the more sticky it becomes. This leads to shorter first three stages, insufficient humus formation, and unsatisfactory composting results. Furthermore, in the final composting and preservation stage, the reduced-volume pile needs to be compressed to induce an anaerobic state, thereby reducing nutrient loss. However, existing devices, due to the presence of a stirring device, do not compress the pile sufficiently, resulting in a high nutrient loss rate. Summary of the Invention

[0004] The purpose of this invention is to provide a fermentation apparatus for preparing agricultural organic fertilizer, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fermentation device for preparing agricultural organic fertilizer, comprising a fermentation box and a turning component. The fermentation box contains the turning component, which includes a motor fixedly installed outside the bottom of the fermentation box. The rotating end of the motor is fixedly connected to a rotating shaft, and a drive umbrella wheel is coaxially installed at the bottom of the rotating shaft. A lifting auger is coaxially installed at the top of the rotating shaft. The outer edge of the lifting auger is tightly fitted with the inner wall of the hole in the lifting cylinder. The bottom opening of the lifting cylinder is fixed with concentric arrays of overhead feet, and the lifting cylinder is supported inside the bottom of the fermentation box by the overhead feet. A flat bowl is integrally fixed at the top of the lifting cylinder, and the inner diameter of the flat bowl gradually increases compared to the inner diameter of the lifting cylinder. The conical surface of the inner wall of the flat bowl transitions to the top opening of the lifting cylinder in a stepped manner.

[0006] Furthermore, an opening and closing control assembly is installed on the side of the flat bowl opening. The opening and closing control assembly includes a machine body fixedly installed on the side of the flat bowl opening. An electric cylinder is fixedly installed on the side of the machine body, and a U-shaped frame is fixedly connected to the telescopic end of the electric cylinder. The U-shaped frame is in a limiting sliding fit with the inner wall of the machine body.

[0007] Furthermore, the opening and closing control assembly also includes grooved plates symmetrically fixed at both ends of the U-shaped frame recess, a core rod is provided at the front end of the U-shaped frame recess, and a right half plate is fixedly installed on the side end of the core rod.

[0008] Furthermore, the opening and closing control assembly also includes a sleeve disposed at the rear end of the U-shaped frame notch, with a left half plate fixedly installed on the side end of the sleeve, and the sleeve being sleeved on the outside of the core rod.

[0009] Furthermore, the sleeve and the pin at the end of the core rod are respectively engaged with the groove plates at both ends of the U-shaped frame notch, and the core rod drives the right half plate to rotate on the side of the flat bowl opening, and the sleeve drives the left half plate to rotate on the other side of the flat bowl opening. Moreover, the outer circle dimension of the right half plate and the left half plate after they are joined together matches the outer circle dimension of the flat bowl opening.

[0010] Furthermore, a feed pipe is connected to the left side of the fermentation chamber, and a discharge door is provided at the bottom of the fermentation chamber.

[0011] Furthermore, a water pump is fixedly installed at the top of the fermentation tank, and one end of the water pump is connected to a water storage tank, which is fixedly installed outside the side of the fermentation tank. The other end of the water pump is connected to an annular spray pipe, which is installed at the top of the fermentation tank cavity.

[0012] Furthermore, the fermentation tank has a U-shaped equipment compartment at the bottom, and an inspection door is bolted to the front opening of the equipment compartment. Guide plates are symmetrically fixed on both sides of the bottom of the fermentation tank, and the bottom of the conical surface of the guide plate is located outside the overhead leg array.

[0013] Furthermore, the equipment compartment is equipped with a linkage aeration assembly, which includes brackets fixedly installed on both sides of the equipment compartment. A driven cone rod is rotatably installed inside the brackets on both sides, and one end of the driven cone rod is coaxial with the bottom end of the rotating shaft to engage with a drive umbrella wheel for transmission.

[0014] Furthermore, the linkage aeration assembly also includes a synchronous belt sleeved on the other end of the driven cone rod. The synchronous belt is connected to a pulley at the end opposite to the driven cone rod, and the pulley is coaxially mounted on the rotating end of the air slip ring. The fixed end of the air slip ring is fixedly mounted on the outside of the fermentation tank, and the side end of the air slip ring is connected to the air outlet of the aeration blower through an air inlet. A turntable is coaxially connected to the inner side of the pulley, and aeration pipes are installed in a concentric array on the surface of the turntable. The turntable is located in the gap between the lifting cylinder and the side wall of the fermentation tank cavity.

[0015] This invention provides a fermentation apparatus for preparing agricultural organic fertilizer, which has the following beneficial effects; 1. When this application is used, the flat bowl design increases the contact area between the composting raw materials and the bacteria or water sprayed from the ring spray pipe, thereby improving the decomposition and fermentation effect of aerobic bacteria and microorganisms on the fertilizer. The rotation of the lifting auger inside the lifting cylinder enables the composting raw materials to be continuously turned from bottom to top, forming a closed loop rotation of the composting raw materials in the lifting cylinder and fermentation box, ensuring that all raw materials in the box can participate in uniform fermentation.

[0016] 2. When this application is used, the lifting and turning of the lifting auger and the rotation and stirring of the aeration pipe form a dual synergy, which not only covers the raw materials inside and outside the lifting cylinder, but also specifically solves the hidden danger of accumulation in the gap, ensuring that the compost raw materials are in a loose and uniform state throughout the fermentation process.

[0017] 3. When this application is used, the modular design of the flat bowl opening and closing controllable and the aeration and stirring integrated aeration pipe can be flexibly adjusted according to the needs of different fermentation stages such as heating, high temperature, cooling and decomposition, adapting to the process requirements of the entire composting process and having strong applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the device of the present invention; Figure 2 This is a top view of the internal structure of the device of the present invention; Figure 3 This is a bottom view of the internal structure of the device of the present invention; Figure 4 This is a schematic diagram of the annular spray pipe structure of the present invention; Figure 5 This is a schematic diagram of part of the structure of the device of the present invention; Figure 6 This is a cross-sectional view of the flipping component of the present invention; Figure 7 This is a schematic diagram of the opening and closing control component structure of the present invention; Figure 8 This is a schematic diagram of the split structure of the right and left halves of the present invention.

[0019] In the diagram: 1. Fermentation box; 2. Turning assembly; 201. Motor; 202. Rotating shaft; 203. Drive umbrella wheel; 204. Lifting auger; 205. Lifting cylinder; 206. Elevating foot; 207. Flat bowl opening; 3. Opening and closing control assembly; 301. Machine body; 302. Electric cylinder; 303. U-shaped frame; 304. Slot plate; 305. Core rod; 306. Right half plate; 307. Sleeve; 308 1. Left half plate; 4. Feed pipe; 5. Discharge gate; 6. Water pump; 7. Water storage tank; 8. Annular spray pipe; 9. Equipment compartment; 10. Inspection door; 11. Guide plate; 12. Linkage aeration assembly; 1201. Support; 1202. Driven cone rod; 1203. Synchronous belt; 1204. Pulley; 1205. Air slip ring; 1206. Air inlet; 1207. Turntable; 1208. Aeration pipe. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention. Please see Figures 1 to 6 This invention provides a technical solution: a fermentation device for preparing agricultural organic fertilizer, including a fermentation box 1 and a turning component 2. The fermentation box 1 is equipped with the turning component 2. The turning component 2 includes a motor 201 fixedly installed outside the bottom end of the fermentation box 1. The rotating end of the motor 201 is fixedly connected to a rotating shaft 202. A drive umbrella wheel 203 is coaxially installed at the bottom end of the rotating shaft 202. A lifting auger 204 is coaxially installed at the top end of the rotating shaft 202. The outer edge of the lifting auger 204 is tightly fitted with the inner wall of the hole in the lifting cylinder 205. The bottom opening of the lifting cylinder 205 is concentrically arrayed with overhead feet 206. The lifting cylinder 205 is supported inside the bottom end of the fermentation box 1 by the overhead feet 206. A flat bowl 207 is integrally fixed at the top end of the lifting cylinder 205. The inner diameter of the flat bowl 207 gradually increases compared to the inner diameter of the lifting cylinder 205. The conical surface of the inner wall of the flat bowl 207 transitions to the top opening of the lifting cylinder 205 in a stepped manner. The specific operation is as follows: the composting material is fed into the fermentation tank 1 through the feed pipe 4. The motor 201 is activated to drive the lifting auger 204, which is coaxial with the top of the rotating shaft 202, to rotate. The composting material accumulated in the gap between the lifting cylinder 205 and the side wall of the fermentation tank 1 is lifted from the bottom to the top. As the composting material accumulates at the top opening of the lifting cylinder 205, it will gradually overflow from the edge of the flat bowl rim 207, and then fall back into the gap between the lifting cylinder 205 and the side wall of the fermentation tank 1, and exit through the gap of the support legs 206 at the bottom of the lifting cylinder 205. The composting material is re-entered into the lifting cylinder 205 to complete the closed loop, achieving continuous turning of the composting material. The design of the flat bowl 207 in this application increases the contact area between the composting material and the bacteria or water sprayed from the annular spray pipe 8, improving the decomposition and fermentation effect of aerobic bacteria and microorganisms on the fertilizer. The rotation of the lifting auger 204 in the lifting cylinder 205 achieves continuous turning of the composting material from bottom to top, forming a closed loop rotation of the composting material in the lifting cylinder 205 and the fermentation box 1, ensuring that all the materials in the box can participate in uniform fermentation. Please see Figures 7 to 8 A control assembly 3 is installed on the side of the flat bowl opening 207. The control assembly 3 includes a body 301 fixedly installed on the side of the flat bowl opening 207. An electric cylinder 302 is fixedly installed on the side of the body 301, and a U-shaped frame 303 is fixedly connected to the telescopic end of the electric cylinder 302. The U-shaped frame 303 is in a limited sliding fit with the inner wall of the body 301. The control assembly 3 also includes groove plates 304 symmetrically fixed at both ends of the recess of the U-shaped frame 303. A core rod 305 is provided at the front end of the recess of the U-shaped frame 303, and a right half plate 306 is fixedly installed on the side end of the core rod 305. The control assembly 3 also includes A sleeve 307 is provided at the rear end of the U-shaped frame 303 recess. A left half plate 308 is fixedly installed on the side end of the sleeve 307, and the sleeve 307 is sleeved on the outside of the core rod 305. The pins at the ends of the sleeve 307 and the core rod 305 are respectively engaged with the slot plates 304 at both ends of the U-shaped frame 303 recess. The core rod 305 drives the right half plate 306 to rotate on one side of the opening of the flat bowl 207, and the sleeve 307 drives the left half plate 308 to rotate on the other side of the opening of the flat bowl 207. Moreover, the outer circle dimension of the right half plate 306 and the left half plate 308 after they are closed matches the outer circle dimension of the flat bowl 207. The specific operation is as follows: After the three stages of heating, high temperature, and cooling, where aerobic bacteria and microorganisms decompose and ferment the fertilizer, the final composting and fertilizer preservation stage requires compressing the reduced-volume fertilizer pile to induce an anaerobic state, thereby reducing nutrient loss. The electric cylinder 302 on the outer edge of the flat bowl 207 is activated, and its telescopic end pushes the U-shaped frame 303 to move horizontally within the machine body 301. Under the pushing action of the groove plates 304 at both ends of the U-shaped frame 303's notch on the core rod 305 and the pin at the end of the sleeve 307, the core rod 305 causes the right half plate 306 to rotate on the side of the opening of the flat bowl 207, and the sleeve 307 causes the left half plate 308 to rotate on the other side of the opening of the flat bowl 207, thus causing the right half plate 306 to rotate. The outer circle dimension of 06 after it is closed with the left half plate 308 matches the outer circle dimension of the flat bowl 207. At this time, the opening of the flat bowl 207 is closed. The compost material lifted from bottom to top by the lifting auger 204 cannot be discharged and accumulates inside the flat bowl 207. As the accumulation gradually increases while the volume of the container remains unchanged, the volume of the compost material shrinks and is subjected to continuous pressure, so that the compost can smoothly transition from an aerobic fermentation state to an anaerobic state, which meets the process requirements of the maturation stage. The controllable opening and closing of the flat bowl 207 and the integrated aeration and stirring of the aeration pipe 1208 in this application have modular features. The functions can be flexibly adjusted according to the needs of different fermentation stages such as heating, high temperature, cooling, and maturation, which are suitable for the process requirements of the entire composting process and have strong applicability. Please see Figures 2 to 5The fermentation chamber 1 has a feed pipe 4 connected to the left side of its cavity, and a discharge door 5 at the bottom of its cavity. A water pump 6 is fixedly installed at the top of the fermentation chamber 1, with one end of the water pump 6 connected to a water storage tank 7, which is fixedly installed outside the side of the fermentation chamber 1. The other end of the water pump 6 is connected to an annular spray pipe 8, which is installed at the top of the fermentation chamber 1. A U-shaped equipment compartment 9 is opened at the bottom of the fermentation chamber 1, and an inspection door 10 is bolted to the front opening of the equipment compartment 9. Guide plates 11 are symmetrically fixed on both sides of the bottom of the fermentation chamber 1, with the bottom of the conical surface of the guide plates 11 located outside the array of overhead feet 206. The equipment compartment 9 contains a linkage aeration assembly 12, which includes brackets 1201 fixedly installed on both sides of the equipment compartment 9. The brackets 1201 on both sides rotate inside. The aeration assembly 12 is equipped with a driven cone rod 1202, and a drive umbrella wheel 203 is meshed with the bottom end of the rotating shaft 202 at one end of the driven cone rod 1202. The linkage aeration assembly 12 also includes a synchronous belt 1203 sleeved on the other end of the driven cone rod 1202. The synchronous belt 1203 is connected to a pulley 1204 at the end away from the driven cone rod 1202. The pulley 1204 is coaxially installed on the rotating end of the air slip ring 1205. The fixed end of the air slip ring 1205 is fixedly installed on the outside of the fermentation box 1. The side end of the air slip ring 1205 is connected to the air outlet of the aeration blower through the air inlet 1206. The inner side of the pulley 1204 is coaxially connected to a turntable 1207. The turntable 1207 is concentrically arrayed with aeration pipes 1208 on its surface. The turntable 1207 is located in the gap between the lifting cylinder 205 and the side wall of the fermentation box 1. The specific operation is as follows: While the motor 201 drives the lifting auger 204, which is coaxially mounted at the top of the rotating shaft 202, to rotate, the drive umbrella wheel 203, which is coaxially mounted at the bottom of the rotating shaft 202, also simultaneously engages with the driven cone rods 1202 on both sides for transmission. This causes the driven cone rods 1202 to drive the pulley 1204 at the rotating end of the air slip ring 1205 to rotate via the synchronous belt 1203. In this application, aeration pipes 1208 are concentrically arrayed on the surface of the turntable 1207, which rotates coaxially with the pulley 1204. The aeration blower is connected to the aeration pipes 1208 on the turntable 1207 via the fixed end of the air slip ring 1205 to provide oxygen. At the same time, the rotating aeration pipe 1208 can also play a stirring role, which can not only prevent the composting raw materials from sticking and accumulating in the gap between the lifting cylinder 205 and the side wall of the fermentation box 1, but also make the structure between the composting raw materials loose, ensuring that aerobic bacteria can obtain enough oxygen, and further improve the aeration and fermentation effect. This application forms a dual synergy through the up and down lifting and turning of the lifting auger 204 and the rotation and stirring of the aeration pipe 1208, which not only covers the raw materials inside and outside the lifting cylinder 205, but also specifically solves the hidden danger of accumulation in the gap, ensuring that the composting raw materials are in a loose and uniform state throughout the fermentation process.

[0021] In summary, when using this fermentation device for preparing agricultural organic fertilizer: First, the composting material is fed into the fermentation tank 1 through the feed pipe 4. The motor 201 is then activated to drive the coaxial lifting auger 204 at the top of the rotating shaft 202 to rotate, lifting the composting material accumulated in the gap between the lifting cylinder 205 and the side wall of the fermentation tank 1 from the bottom to the top. As the composting material accumulates at the top opening of the lifting cylinder 205, it gradually overflows from the edge of the flat bowl rim 207, then falls back into the gap between the lifting cylinder 205 and the side wall of the fermentation tank 1, and is then re-emerged through the gap in the support legs 206 at the bottom of the lifting cylinder 205. The composting material enters the lifting cylinder 205 to complete the closed loop, achieving continuous turning of the composting material. The design of the flat bowl 207 in this application increases the contact area between the composting material and the bacteria or water sprayed from the annular spray pipe 8, improving the effect of aerobic bacteria and microorganisms on the decomposition and fermentation of fertilizer. The rotation of the lifting auger 204 in the lifting cylinder 205 achieves continuous turning of the composting material from bottom to top, forming a closed loop rotation of the composting material in the lifting cylinder 205 and the fermentation box 1, ensuring that all materials in the box can participate in uniform fermentation. Secondly, while the motor 201 drives the lifting auger 204 coaxially at the top of the rotating shaft 202 to rotate, the drive umbrella wheel 203 coaxially at the bottom of the rotating shaft 202 also simultaneously engages with the driven cone rods 1202 on both sides for transmission. This causes the driven cone rods 1202 to drive the pulley 1204 at the rotating end of the air slip ring 1205 to rotate via the synchronous belt 1203. In this application, aeration pipes 1208 are concentrically arrayed on the surface of the turntable 1207 that rotates coaxially with the pulley 1204. The aeration blower is connected to the aeration pipes 1208 on the turntable 1207 through the fixed end of the air slip ring 1205 to provide oxygen. Meanwhile, the rotating aeration pipe 1208 can also play a stirring role, which can not only prevent the composting raw materials from sticking and accumulating in the gap between the lifting cylinder 205 and the side wall of the fermentation tank 1, but also make the structure between the composting raw materials loose, ensuring that aerobic bacteria can obtain enough oxygen, and further improve the aeration and fermentation effect. This application forms a dual synergy between the up and down lifting and turning of the lifting auger 204 and the rotation and stirring of the aeration pipe 1208, which not only covers the raw materials inside and outside the lifting cylinder 205, but also specifically solves the hidden danger of accumulation in the gap, ensuring that the composting raw materials are in a loose and uniform state throughout the fermentation process; Finally, after the three stages of decomposition and fermentation of fertilizer by aerobic bacteria and microorganisms—heating, high temperature, and cooling—the final composting and fertilizer preservation stage requires compressing the reduced-volume compost pile to induce an anaerobic state, thereby reducing nutrient loss. The electric cylinder 302, located on the outer edge of the flat bowl 207, pushes the U-shaped frame 303 within the machine body 301 via its telescopic end. Under the pushing action of the grooved plates 304 at both ends of the U-shaped frame 303's notch on the core rod 305 and the pin at the end of the sleeve 307, the core rod 305 causes the right half-plate 306 to rotate on the open side of the flat bowl 207, and the sleeve 307 causes the left half-plate 308 to rotate on the other side of the opening of the flat bowl 207, thus causing the right half-plate 306 to rotate. The outer circle dimension after the left half plate 308 is closed matches the outer circle dimension of the flat bowl 207. At this time, the opening of the flat bowl 207 is closed. The compost material lifted from bottom to top by the lifting auger 204 cannot be discharged and accumulates inside the flat bowl 207. As the accumulation gradually increases while the volume of the container remains unchanged, the volume of the compost material shrinks and is subjected to continuous pressure, so that the compost smoothly transitions from an aerobic fermentation state to an anaerobic state, which meets the process requirements of the maturation stage. The controllable opening and closing of the flat bowl 207 and the integrated aeration and stirring design of the aeration pipe 1208 in this application have modular features. The functions can be flexibly adjusted according to the needs of different fermentation stages such as heating, high temperature, cooling, and maturation, adapting to the process requirements of the entire composting process and having strong applicability.

[0022] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A fermentation device for preparing agricultural organic fertilizer, comprising a fermentation chamber (1) and a turning assembly (2), characterized in that, The fermentation tank (1) is equipped with a turning assembly (2). The turning assembly (2) includes a motor (201) fixedly installed on the outside of the bottom of the fermentation tank (1). The rotating end of the motor (201) is fixedly connected to a rotating shaft (202). A drive umbrella wheel (203) is coaxially installed at the bottom end of the rotating shaft (202), and a lifting auger (204) is coaxially installed at the top end of the rotating shaft (202). The outer edge of the lifting auger (204) is tightly fitted with the inner wall of the central hole of the lifting cylinder (205). The bottom opening of the lifting cylinder (205) is concentrically arrayed with overhead feet (206), and the lifting cylinder (205) is supported inside the bottom of the fermentation box (1) by the overhead feet (206). The top of the lifting cylinder (205) is integrally fixed with a flat bowl mouth (207), and the inner diameter of the flat bowl mouth (207) gradually increases compared with the inner diameter of the lifting cylinder (205). The conical surface of the inner wall of the flat bowl mouth (207) transitions to the top opening of the lifting cylinder (205) in a stepped manner.

2. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 1, characterized in that, An opening and closing control assembly (3) is installed on the side of the flat bowl opening (207). The opening and closing control assembly (3) includes a body (301) fixedly installed on the side of the flat bowl opening (207). An electric cylinder (302) is fixedly installed on the side of the body (301), and a U-shaped frame (303) is fixedly connected to the telescopic end of the electric cylinder (302). The U-shaped frame (303) is limited and slidably engaged with the inner wall of the body (301).

3. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 2, characterized in that, The opening and closing control component (3) also includes a slotted plate (304) symmetrically fixed at both ends of the U-shaped frame (303) recess. A core rod (305) is provided at the front end of the U-shaped frame (303) recess, and a right half plate (306) is fixedly installed on the side end of the core rod (305).

4. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 3, characterized in that, The opening and closing control assembly (3) also includes a sleeve (307) disposed at the rear end of the notch of the U-shaped frame (303), a left half plate (308) is fixedly installed on the side end of the sleeve (307), and the sleeve (307) is sleeved on the outside of the core rod (305).

5. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 4, characterized in that, The sleeve (307) and the pin at the end of the core rod (305) are respectively engaged with the groove plates (304) at both ends of the U-shaped frame (303) notch. The core rod (305) drives the right half plate (306) to rotate on the side of the opening of the flat bowl (207), and the sleeve (307) drives the left half plate (308) to rotate on the other side of the opening of the flat bowl (207). Moreover, the outer circle dimension of the right half plate (306) and the left half plate (308) after they are closed matches the outer circle dimension of the flat bowl (207).

6. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 5, characterized in that, The fermentation chamber (1) has a feed pipe (4) connected to the left side of the chamber, and a discharge door (5) is provided at the bottom of the fermentation chamber (1).

7. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 6, characterized in that, A water pump (6) is fixedly installed at the top of the fermentation box (1), and one end of the water pump (6) is connected to the water storage tank (7). The water storage tank (7) is fixedly installed outside the side of the fermentation box (1). The other end of the water pump (6) is connected to the annular spray pipe (8), and the annular spray pipe (8) is installed at the top of the cavity of the fermentation box (1).

8. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 7, characterized in that, The fermentation box (1) has a U-shaped equipment compartment (9) at the bottom, and the front opening of the equipment compartment (9) is bolted with an inspection door (10). The fermentation box (1) has guide plates (11) symmetrically fixed on both sides of the bottom, and the bottom of the conical surface of the guide plate (11) is located outside the array of overhead feet (206).

9. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 8, characterized in that, The equipment compartment (9) is equipped with a linkage aeration assembly (12). The linkage aeration assembly (12) includes brackets (1201) fixedly installed on both sides of the equipment compartment (9). A driven cone rod (1202) is rotatably installed inside the brackets (1201) on both sides, and a drive umbrella wheel (203) coaxial with the bottom end of the rotating shaft (202) is engaged for transmission.

10. The fermentation apparatus for preparing agricultural organic fertilizer according to claim 9, characterized in that, The linkage aeration assembly (12) also includes a synchronous belt (1203) sleeved on the other end of the driven cone rod (1202). The synchronous belt (1203) is connected to a pulley (1204) at the end away from the driven cone rod (1202). The pulley (1204) is coaxially installed on the rotating end of the air slip ring (1205). The fixed end of the air slip ring (1205) is fixedly installed on the outside of the fermentation box (1). The side end of the air slip ring (1205) is connected to the air outlet of the aeration blower through the air inlet interface (1206). The inner side of the pulley (1204) is coaxially connected to a turntable (1207). The turntable (1207) is concentrically arrayed with aeration pipes (1208) on its surface. The turntable (1207) is located in the gap between the lifting cylinder (205) and the side wall of the fermentation box (1).

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