Organic fertilizer aerobic fermentation device and method

Abstract

The invention relates to the technical field of organic fertilizer aerobic fermentation, in particular to an organic fertilizer aerobic fermentation device and method.The organic fertilizer aerobic fermentation device comprises a horizontal fermentation body, the horizontal fermentation body comprises a fermentation cylinder arranged in the horizontal axial direction, a feeding port is formed in the upper portion of the left end of the fermentation cylinder, and a discharging port is formed in the lower portion of the right end of the fermentation cylinder; a plurality of aeration holes are formed in the inner bottom wall of the horizontal fermentation main body, a turning and throwing mechanism is arranged in the fermentation cylinder body, and a plurality of auxiliary mechanisms are arranged on the fermentation cylinder body. The device has the advantages that materials are forcibly extruded and cut through the matching of an extrusion plate and a shoveling plate in the auxiliary mechanism, so that the fermentation efficiency and uniformity are obviously improved; through cooperation of the arc-shaped scraper, the guide plate and the anti-blocking piece, continuous and efficient aeration and anti-blocking are achieved, and the stability of the fermentation process is guaranteed; and through the reciprocating motion of the auxiliary mechanism and the cooperation of the pressing mechanism, the device has the self-cleaning and anti-adhesion capacity, and the maintenance cost and the downtime can be reduced.

Description

Technical Field

[0001] This invention relates to the field of aerobic fermentation technology for organic fertilizers, and more particularly to an aerobic fermentation apparatus and method for organic fertilizers. Background Technology

[0002] Cow and sheep manure contains nitrogen, phosphorus, potassium, and various trace elements, making it an excellent raw material for producing organic fertilizer. Aerobic fermentation is the core process for treating cow and sheep manure and other organic solid wastes, transforming them into high-quality organic fertilizer. In this process, microorganisms decompose organic matter under sufficient oxygen conditions, generating high temperatures to achieve the maturation, detoxification, and stabilization of the material.

[0003] Currently, aerobic fermentation devices for organic fertilizers include horizontal fermenters / drums, vertical fermentation reactors, and molecular membrane covered composting systems. The working principle of a horizontal fermenter / drum is as follows: within a container equipped with an internal stirring mechanism, optimal contact and reaction conditions for materials, oxygen, temperature, and microorganisms are forcibly created and maintained through physical means, thereby accelerating the aerobic fermentation process. What originally required dozens of days of natural process is condensed into a highly efficient and clean industrial biological reaction process that can be completed in a few days within a controllable reactor. However, for cow and sheep manure with high moisture content, moisture easily migrates during fermentation, leading to the material caking into lumps. Although existing technologies generally use stirring or turning devices, these are mostly single stirring actions, which have limited ability to break up the already formed solid lumps, affecting the fermentation effect. Secondly, the aeration holes of existing devices are usually located at the bottom of the tank. During long-term operation, damp and fine materials easily accumulate and adhere to the surface of the aeration holes, causing pore blockage, resulting in insufficient local oxygen supply and forming fermentation dead zones. Furthermore, organic matter and fibers in the material adhere to the top wall, bottom, and near the aeration holes of the device, gradually accumulating to form hard "scabs." The traditional solution relies on periodic shutdowns for intensive manual removal, which not only results in harsh working conditions and high maintenance costs but also leads to low equipment operating efficiency, restricting production efficiency.

[0004] Therefore, in order to improve the effect and efficiency of fermentation, this invention provides an aerobic fermentation device and method for organic fertilizer. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing an aerobic fermentation device and method for organic fertilizer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aerobic fermentation device for organic fertilizer, comprising a horizontal fermentation body, wherein the horizontal fermentation body includes a fermentation cylinder arranged along a horizontal axis, a feed inlet is provided at the upper left end of the fermentation cylinder, a discharge outlet is provided at the lower right end of the fermentation cylinder, and a plurality of aeration holes are provided on the inner bottom wall of the horizontal fermentation body.

[0007] The fermentation cylinder is equipped with a turning mechanism inside. The turning mechanism is rotatably installed inside the fermentation cylinder. The turning mechanism includes a shaft and several turning parts that are evenly and equidistantly installed on the outer wall of the shaft. It is used to turn the material over and transport it from left to right during the fermentation process.

[0008] The fermentation cylinder is equipped with multiple auxiliary mechanisms, which are spaced apart along the axial direction of the fermentation cylinder and located between adjacent turning and turning components.

[0009] The auxiliary mechanism includes a connecting component that is rotatably mounted on the fermentation cylinder, and an anti-accumulation component and an anti-blocking component mounted on the connecting component and located inside the fermentation cylinder.

[0010] The material being conveyed is forcibly squeezed and divided by the turning and anti-accumulation components. The anti-accumulation components and anti-clogging components work together to scrape off the bottom material accumulated on the surface of the aeration holes during reciprocating motion, and assist the airflow diffusion in multiple directions while performing self-cleaning operations without stopping the machine.

[0011] In the aforementioned aerobic fermentation device for organic fertilizer, the connecting assembly includes a rotating ring and an arc-shaped baffle that are rotatably connected to the outside of the fermentation cylinder. The arc-shaped baffle is fixedly installed on the inner ring wall of the rotating ring, and a toothed ring is fixedly installed on the outer ring wall of the rotating ring. Two clearance holes are provided on both the rotating ring and the arc-shaped baffle.

[0012] In the aforementioned aerobic fermentation device for organic fertilizer, the anti-accumulation component includes a movable part, which is driven by a connecting component to reciprocate along the inner wall of the fermentation cylinder.

[0013] In the aforementioned aerobic fermentation device for organic fertilizer, the movable components include a movable seat installed on the middle of the side of the arc-shaped baffle away from the rotating ring and an arc-shaped frame fixed on the movable seat.

[0014] In the aforementioned aerobic fermentation device for organic fertilizer, the bottom walls at both ends of the arc-shaped frame are fixedly connected to arc-shaped scrapers attached to the inner wall of the fermentation cylinder, which are used to scrape off the material from the bottom wall of the fermentation cylinder and the surface of the aeration holes.

[0015] In the aforementioned aerobic fermentation device for organic fertilizer, a guide plate is fixedly connected to the side of the arc-shaped scraper away from the inner wall of the fermentation cylinder, which is used to guide the scraped material toward the discharge port.

[0016] In the aforementioned aerobic fermentation device for organic fertilizer, a pressing plate is fixedly connected to the middle of the left side wall of the arc-shaped frame, and multiple blades are fixed on the pressing plate for use in conjunction with the turning and throwing mechanism to press and divide the thrown material.

[0017] In the aforementioned aerobic fermentation device for organic fertilizer, the anti-clogging component includes multiple interconnected arc-shaped covers that can cover the aeration holes, and the arc-shaped covers have several sets of ventilation holes in their circumference.

[0018] In the aforementioned aerobic fermentation device for organic fertilizer, a pressing mechanism is provided on both the fermentation cylinder and the feed inlet. The pressing mechanism includes a horizontal bar that slides vertically and vertically connected to the fermentation cylinder and the feed inlet, as well as multiple pressing vertical bars installed on the bottom wall of the horizontal bar.

[0019] As a preferred technical solution of the present invention, the present invention also provides an aerobic fermentation method for organic fertilizer, which is completed by using the above-mentioned aerobic fermentation device for organic fertilizer, specifically including the following steps: S1: After mixing cattle and sheep manure with auxiliary materials, the mixture is fed into the fermentation cylinder through the feed inlet.

[0020] S2: Oxygen is supplied through the aeration holes, and the turning mechanism is activated to continuously turn the material, so that the material moves towards the discharge port while fermenting.

[0021] S3: During the fermentation process, the auxiliary mechanism performs intermittent reciprocating motion.

[0022] S4: When the auxiliary mechanism moves, the anti-accumulation component scrapes off the material on the bottom wall of the fermentation cylinder and the surface of the aeration holes, and assists in guiding the material towards the discharge port. After scraping, the anti-clogging component covers the aeration holes for protective aeration.

[0023] S5: When the auxiliary mechanism moves to the end of its stroke and pauses briefly, the anti-clogging parts not covered by the aeration holes are cleaned by the pressing mechanism, and the internal accumulated material is discharged.

[0024] S6: After fermentation is complete, the material is discharged from the outlet.

[0025] Compared with existing technologies, the advantages of this invention are: this device improves fermentation efficiency and quality, ensures continuous and stable aeration, achieves self-cleaning, and reduces maintenance costs through the synergistic effect of tumbling and squeezing, automatic scraping and protection, and a self-cleaning system.

[0026] 1. Through continuous turning and axial conveying by the turning mechanism, combined with the cooperation of the extrusion plate and lifting plate in the auxiliary mechanism, the material is forcibly squeezed and divided, effectively breaking the material caking and clumping problems that easily occur during fermentation, significantly improving fermentation efficiency and uniformity, and ensuring product quality. This combination of "dynamic turning + division during turning" ensures a highly uniform distribution of materials, moisture, microorganisms, and temperature, accelerates the decomposition process of microorganisms, and significantly shortens the production cycle.

[0027] 2. Through the combined use of an arc-shaped scraper, guide plate, and anti-clogging component, continuous and efficient aeration and anti-clogging are achieved, ensuring a stable fermentation process. The arc-shaped scraper can promptly scrape away the accumulated material covering the surface of the aeration holes during its reciprocating motion, fundamentally preventing clogging of the aeration holes; after scraping, the anti-clogging component immediately covers the aeration holes, and its circumferentially multi-angled ventilation holes can expand the airflow diffusion range, ensuring oxygen supply even if the top part of the holes is covered by material.

[0028] 3. Through the reciprocating motion of the auxiliary mechanism and the coordination of the pressing mechanism, this device possesses self-cleaning and anti-adhesion capabilities, which helps reduce maintenance costs and downtime. The movement of the arc-shaped scraper not only cleans the aeration holes but also scrapes away the static material layer at the bottom of the cylinder; the continuous movement of the moving parts prevents scaling at the top of the cylinder; and the pressing mechanism periodically discharges any small amount of material that may accumulate in the anti-clogging components. Reducing the adhesion and accumulation of material on the top and bottom walls, aeration holes, and anti-clogging components of the device significantly lowers the failure rate and frequency of manual cleaning caused by clogging or scaling, improves the continuous operation capability and service life of the device, and thus reduces operating and maintenance costs. Attached Figure Description

[0029] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure.

[0030] Figure 2 This is a schematic diagram of the internal structure of the fermentation tank.

[0031] Figure 3 This is a schematic diagram of the tumbling mechanism.

[0032] Figure 4 This is a partial structural diagram of the tumbling and throwing mechanism and its auxiliary mechanisms.

[0033] Figure 5 This is a partial structural breakdown diagram of the auxiliary mechanism.

[0034] Figure 6 A schematic diagram of the anti-clogging component.

[0035] Figure 7 A schematic diagram of the structure when the aeration holes are covered to prevent clogging.

[0036] Figure 8 This is a structural diagram showing the moving part when it has rotated to the rearmost position.

[0037] Figure 9 This is a structural diagram showing the moving part rotated to its foremost position.

[0038] Figure 10 A schematic diagram of the structure when the pressing mechanism pushes the anti-clogging component for cleaning.

[0039] Figure 11 This is a schematic diagram of the structure of the tumbling and extrusion mechanism and the extrusion plate near the front.

[0040] Figure 12 A schematic diagram of the structure for the extrusion and splitting of the tumbling mechanism and extrusion plate.

[0041] In the diagram: 1. Horizontal fermentation body; 11. Fermentation cylinder; 12. Feed inlet; 13. Discharge outlet; 14. Aeration hole; 2. Turning and turning mechanism; 3. Auxiliary mechanism; 31. Connecting component; 311. Rotating ring; 312. Arc-shaped baffle; 313. Clearance hole; 314. Toothed ring component; 32. Anti-accumulation component; 321. Moving part; 322. Arc-shaped scraper; 323. Extrusion plate; 324. Guide plate; 33. Anti-clogging component; 4. Pressing mechanism. Detailed Implementation

[0042] 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.

[0043] Reference Figure 1 and Figure 2 An aerobic fermentation device for organic fertilizer includes a horizontal fermentation body 1, which includes a fermentation cylinder 11 mounted on the ground via a base. The fermentation cylinder 11 is a cylinder oriented left and right. A feed inlet 12 is provided at the upper left end of the fermentation cylinder 11, and a discharge outlet 13 is provided at the lower right end of the fermentation cylinder 11. A plurality of aeration holes 14 are provided on the inner bottom wall of the fermentation cylinder 11. The aeration holes 14 are connected to an external high-pressure blower (not shown in the figure) through an aeration pipe (not shown in the figure) installed inside the fermentation cylinder 11.

[0044] Reference Figures 1 to 3 The fermentation cylinder 11 is equipped with a turning mechanism 2. The turning mechanism 2 includes a shaft rotatably connected to the inner walls of the left and right sides of the horizontal fermentation body 1 and several turning components evenly and equidistantly installed on the outer wall of the shaft. The projections of two adjacent turning components perpendicular to the shaft axis do not overlap, and two adjacent turning components are installed with a 45-degree relative rotation in the axial direction. The shaft is connected to the output end of a high-torque drive motor (not shown in the figure) installed on the outer wall of the fermentation cylinder 11, and the high-torque drive motor drives the shaft to rotate. The turning components include a central mounting ring and four lifting plates circumferentially fixed to the outer ring wall of the central mounting ring. All four lifting plates are inclined.

[0045] A mixture of cow and sheep manure raw materials, straw, mushroom residue, sawdust, and other auxiliary materials is fed into the fermentation cylinder 11 through the feed inlet 12. The turning mechanism 2 continuously turns the materials physically throughout the fermentation process, effectively preventing caking and ensuring a high degree of uniformity in materials, moisture, microorganisms, and temperature. The turning action causes the materials to continuously "loosen and reorganize," and the internal pores are renewed, allowing the air introduced through the bottom aeration holes 14 to come into full contact with the materials. At the same time, the turning also enhances moisture evaporation and heat dissipation. While the materials are turning, they will slowly move from left to right along the axial direction of the fermentation cylinder 11 due to the inclined design of the lifting plates, achieving "fermentation while moving," and finally being discharged from the discharge outlet 13 at the other end.

[0046] It should be noted that cow and sheep manure has a high moisture content (about 70%-85%), and usually needs to be adjusted to a suitable moisture content (about 55%-65%) by adding auxiliary materials such as straw, mushroom residue, and sawdust.

[0047] It is important to note that the decomposition of organic matter by microorganisms generates heat. Due to the uniform mixing, the heat can be transferred rapidly, and the temperature of the material inside the tank rises quickly and evenly to a high temperature range of 55℃-70℃. The temperature and oxygen sensors (not shown in the diagram) inside the tank can be used to monitor this in real time, and the control system can intelligently adjust the oxygen supply of the high-pressure blower and the stirring speed of the turning mechanism 2 according to the temperature to maintain optimal fermentation conditions. The material is typically moved to the discharge port 13 within 24 to 72 hours.

[0048] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 10 The fermentation cylinder 11 is equipped with multiple auxiliary mechanisms 3, each including a connecting component 31, an anti-accumulation component 32, and an anti-blocking component 33. The auxiliary mechanisms 3 are positioned between two adjacent turning components. The connecting component 31 includes a rotating ring 311 and an arc-shaped baffle 312 rotatably connected to the outside of the fermentation cylinder 11. The arc-shaped baffle 312 is fixedly installed on the inner ring wall of the rotating ring 311, and the curvature of the arc-shaped baffle 312 matches the curvature of the inner ring wall of the rotating ring 311. A toothed ring component 314 is fixedly installed on the outer ring wall of the rotating ring 311. The rotating ring 311 and the arc-shaped baffle 312 share two symmetrical clearance holes 313.

[0049] Reference Figure 1 The fermentation cylinder 11 is provided with a drive mechanism mounted on the base. The drive mechanism includes a high-torque drive motor 2, a rotating shaft fixed to the output end of the high-torque drive motor 2, and a drive gear ring mounted on the outer wall of the rotating shaft. The drive gear ring meshes with the gear ring component 314, and the gear ring component 314 is driven to rotate by the drive mechanism.

[0050] Reference Figure 1 , Figure 4, Figure 5 , Figure 8 and Figure 11 The anti-accumulation component 32 includes a movable part 321. The movable part 321 includes a movable seat detachably mounted on the side of the arc-shaped baffle 312 away from the rotating ring 311, and an arc-shaped frame fixed to the movable seat. The movable part 321 can be completely disassembled for maintenance. The arc-shaped frame fits against the inner wall of the fermentation cylinder 11. A groove is provided on the inner top wall of the fermentation cylinder 11 for the movable seat to slide. The arc-shaped baffle 312 prevents material inside the fermentation cylinder 11 from leaking out of the groove. Arc-shaped scrapers 322, which are attached to the inner wall of the fermentation cylinder 11, are fixedly connected to the bottom walls at both ends of the arc-shaped frame. A guide plate 324 is fixedly connected to the side of the arc-shaped scraper 322 away from the inner wall of the fermentation cylinder 11, and the guide plate 324 is inclined from the lower left to the upper right. A pressing plate 323 is fixedly connected to the middle of the left side wall of the arc-shaped frame, and multiple blades are fixed on the pressing plate 323. The pressing plate 323 cooperates with the scraper plate to press and divide the material.

[0051] Reference Figure 5 , Figure 6 and Figure 7 An anti-clogging component 33 is symmetrically slidably connected to the arc frame by a spring (not shown in the figure). The anti-clogging component 33 includes multiple interconnected arc-shaped covers, which correspond to the aeration holes 14 and have multiple sets of ventilation holes.

[0052] Reference Figure 1 , Figure 2 , Figure 5 and Figure 10 The fermentation cylinder 11 and the feed inlet 12 are both equipped with a pressing mechanism 4. The pressing mechanism 4 includes a horizontal bar that is driven to slide up and down on the fermentation cylinder 11 and the feed inlet 12 by a hydraulic cylinder (not shown in the figure) and a plurality of pressing vertical bars installed on the bottom wall of the horizontal bar. The pressing vertical bars correspond to the auxiliary mechanism 3. The clearance hole 313 is adapted to the pressing vertical bars. The top wall of the fermentation cylinder 11 is provided with a hole for the pressing vertical bars to pass through.

[0053] During the fermentation and turning process, the auxiliary mechanism 3 works in conjunction with the turning mechanism 2 to squeeze and divide the turned material. At the same time, the movement of the auxiliary mechanism 3 relative to the fermentation cylinder 11 can prevent material from adhering to the top wall of the fermentation cylinder 11. The moving auxiliary mechanism 3 scrapes and guides the material accumulated at the bottom of the fermentation cylinder 11 and on the surface of the aeration holes 14 to the right to prevent the aeration holes 14 from being blocked. Self-cleaning is achieved through the cooperation of the auxiliary mechanism 3 and the pressing mechanism 4.

[0054] The specific operation is as follows: High-torque motor two is a forward and reverse motor. The rotation of high-torque motor two drives the rotating shaft and the gear ring to rotate. The gear ring 314 drives the rotating ring 311 and the arc-shaped baffle 312 to rotate on the fermentation cylinder 11, with a rotation angle between 90° and 180°. The movable part 321 rotates on the fermentation cylinder 11 to the rearmost and frontmost positions, as detailed below. Figure 8 and Figure 9 As shown. The movable part 321 performs a slow, intermittent, reciprocating movement, pausing briefly for three to five minutes at the rearmost and frontmost positions. The continuous movement of the movable part 321 prevents the accumulation of crusts on the top wall of the fermentation cylinder 11.

[0055] The rotating part 321 drives the arc-shaped scraper 322 to scrape along the inner wall of the fermentation cylinder 11 from top to bottom, scraping the material covering the aeration holes 14 to prevent the aeration holes 14 from being blocked. At the same time, it scrapes the material accumulated on the inner bottom wall of the fermentation cylinder 11 that has not been turned over by the turning mechanism 2, disturbing the relatively stationary material layer at the bottom. The guide plate 324 can guide the material from left to right during the scraping process.

[0056] The anti-clogging component 33 moves along with the movable component 321. After the arc-shaped scraper 322 scrapes away the material covering the aeration holes 14, the anti-clogging component 33 immediately covers the aeration holes 14. Multiple sets of vents on the anti-clogging component 33 are evenly distributed circumferentially on the arc-shaped cover. When air is aerated in the aeration holes 14, it enters the anti-clogging component 33 and diffuses outward through the vents on the anti-clogging component 33. The multiple sets of vents in different directions expand the range of gas outflow.

[0057] It should be noted that the guide plate 324, while guiding the material, also prevents some material from moving towards the anti-clogging component 33, reducing the chance of material falling into the arc-shaped cover through the vent. The anti-clogging component 33... Figure 8 and Figure 9 When the device remains in a certain state, the continuous turning and turning by the turning and turning mechanism 2 will cause the arc-shaped cover to bear pressure if there is material above it, so that the aeration holes 14 will not be blocked by the material quickly. At the same time, if there is more material on the arc-shaped cover, the top of the arc-shaped cover will be higher than the sides. After the ventilation hole at the top of the arc-shaped cover fails, the ventilation holes at other positions of the arc-shaped cover can still play a role in ventilation, thereby maintaining smooth aeration.

[0058] refer to Figures 11 to 12During the fermentation and turning process, the lifting plate of the turning mechanism 2 continuously turns the material located at the bottom of the fermentation cylinder 11 from bottom to top. The movable part 321 drives the extrusion plate 323 to rotate. The extrusion plate 323 gradually approaches the lifting plate of the turning mechanism 2. The blade on the extrusion plate 323 extrudes and divides the material lifted by the lifting plate, which helps to prevent the material from clumping, improve the mixing uniformity of the material, and improve the fermentation efficiency.

[0059] refer to Figure 10 During the brief three-to-five-minute pauses between the last and foremost positions of the movable part 321, cleaning is performed via the pressing mechanism 4. The specific operation is as follows: the output end of the hydraulic cylinder moves downward, causing the horizontal bar and multiple vertical bars to move downward. The vertical bars move downward and insert into the clearance hole 313 and the corresponding hole on the fermentation cylinder 11, until they push the anti-clogging component 33 (not the anti-clogging component 33 covering the aeration hole 14) inside the fermentation cylinder 11. The spring connecting the anti-clogging component 33 to the movable part 321 compresses, causing the anti-clogging component 33 to move downward. The two ends of the arc-shaped cover intersect with the movable part 321. Material inside the arc-shaped cover leaks out from the intersecting outlets of the arc-shaped cover and the movable part 321 and re-enters the fermentation cylinder 11, preventing the accumulation of small amounts of material inside the anti-clogging component 33 over time, thus achieving automatic cleaning of key parts and reducing maintenance costs and downtime.

[0060] In addition, the present invention also provides an aerobic fermentation method for organic fertilizer, which is completed by using the above-mentioned aerobic fermentation device for organic fertilizer, specifically including the following steps: S1: After mixing cattle and sheep manure with auxiliary materials, the mixture is fed into the fermentation cylinder 11 through the feed inlet 12.

[0061] S2: Oxygen is supplied through aeration holes 14, and the turning mechanism 2 is started to continuously turn the material, so that the material moves towards the discharge port 13 while fermenting.

[0062] S3: During the fermentation process, the auxiliary mechanism 3 performs intermittent reciprocating motion.

[0063] S4: When the auxiliary mechanism 3 moves, the anti-accumulation component 32 scrapes off the material on the bottom wall of the fermentation cylinder 11 and the surface of the aeration holes 14, and assists in guiding the material to the discharge port 13. After scraping, the anti-clogging component 33 covers the aeration holes 14 for protective aeration.

[0064] S5: When the auxiliary mechanism 3 moves to the end of its stroke and pauses briefly, the anti-clogging component 33 that is not covered by the aeration hole 14 is cleaned by the pressing mechanism 4, and the internal accumulated material is discharged.

[0065] S6: After fermentation is complete, the material is discharged from the outlet 13.

[0066] Although this device adds auxiliary mechanism 3 compared to existing equipment, increasing equipment costs, the movement of the arc-shaped scraper 322 not only cleans the aeration holes 14 but also scrapes away the static material layer at the bottom of the cylinder; the continuous movement of the moving part 321 prevents crusting at the top of the cylinder; and the pressing mechanism 4 can periodically discharge any small amount of material that may accumulate in the anti-clogging part 33. Through the synergistic effect of tumbling and squeezing, automatic scraping protection, and the self-cleaning system, this device improves fermentation efficiency and quality, ensures continuous and stable aeration, achieves self-cleaning, and reduces maintenance costs. From a long-term development perspective, the economic benefits brought by the added equipment are greatly enhanced, so the cost of adding the mechanism is negligible.

[0067] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An aerobic fermentation device for organic fertilizer, characterized in that: The system includes a horizontal fermentation body, which includes a fermentation cylinder arranged along a horizontal axis. The upper left end of the fermentation cylinder has a feed inlet, and the lower right end of the fermentation cylinder has a discharge outlet. The bottom wall of the horizontal fermentation body has several aeration holes. The fermentation cylinder is equipped with a turning mechanism inside. The turning mechanism is rotatably installed inside the fermentation cylinder. The turning mechanism includes a shaft and several turning parts that are evenly and equidistantly installed on the outer wall of the shaft. It is used to turn the material over and transport it from left to right during the fermentation process. The fermentation cylinder is provided with multiple auxiliary mechanisms, which are spaced apart along the axial direction of the fermentation cylinder and located between adjacent turning and turning components. The auxiliary mechanism includes a connecting component that is rotatably mounted on the fermentation cylinder, and an anti-accumulation component and an anti-blocking component mounted on the connecting component and located inside the fermentation cylinder. The material being conveyed is forcibly squeezed and divided by the turning and anti-accumulation components. The anti-accumulation components and anti-clogging components work together to scrape off the bottom material accumulated on the surface of the aeration holes during reciprocating motion, and assist the airflow diffusion in multiple directions while performing self-cleaning operations without stopping the machine.

2. The aerobic fermentation device for organic fertilizer according to claim 1, characterized in that, The connecting assembly includes a rotating ring and an arc-shaped baffle that are rotatably connected to the outside of the fermentation cylinder. The arc-shaped baffle is fixedly installed on the inner ring wall of the rotating ring, and a toothed ring is fixedly installed on the outer ring wall of the rotating ring. Two clearance holes are opened on both the rotating ring and the arc-shaped baffle.

3. The aerobic fermentation device for organic fertilizer according to claim 2, characterized in that, The anti-accumulation component includes a movable part, which is driven to reciprocate along the inner wall of the fermentation cylinder via a connecting component.

4. The aerobic fermentation device for organic fertilizer according to claim 3, characterized in that, The movable component includes a movable seat installed on the middle of the side of the arc-shaped baffle away from the rotating ring and an arc-shaped frame fixed on the movable seat.

5. The aerobic fermentation device for organic fertilizer according to claim 4, characterized in that, The bottom walls at both ends of the arc-shaped frame are fixedly connected to arc-shaped scrapers that are attached to the inner wall of the fermentation cylinder, which are used to scrape off the material on the bottom wall of the fermentation cylinder and the surface of the aeration holes.

6. The aerobic fermentation device for organic fertilizer according to claim 5, characterized in that, A guide plate is fixedly connected to the side of the arc-shaped scraper away from the inner wall of the fermentation cylinder to guide the scraped material toward the discharge port.

7. The aerobic fermentation device for organic fertilizer according to claim 4, characterized in that, A pressing plate is fixedly connected to the middle of the left side wall of the arc-shaped frame, and multiple blades are fixed on the pressing plate for use in conjunction with the tumbling and throwing mechanism to press and divide the thrown material.

8. The aerobic fermentation device for organic fertilizer according to claim 1, characterized in that, The anti-clogging component includes multiple interconnected arc-shaped covers that can cover the aeration holes, and the arc-shaped covers have several sets of ventilation holes in their circumference.

9. The aerobic fermentation device for organic fertilizer according to claim 1, characterized in that, The fermentation cylinder and the feed inlet are both equipped with a pressing mechanism, which includes a horizontal bar that slides up and down on the fermentation cylinder and the feed inlet, and multiple pressing vertical bars installed on the bottom wall of the horizontal bar.

10. An aerobic fermentation method for organic fertilizer is completed using an aerobic fermentation device for organic fertilizer as described in claim 1, characterized in that: Includes the following steps: S1: Mix the cow and sheep manure with the auxiliary materials and put them into the fermentation cylinder through the feed inlet; S2: Oxygen is supplied through the aeration holes, and the turning mechanism is activated to continuously turn the material, so that the material moves towards the discharge port while fermenting. S3: During the fermentation process, the auxiliary mechanism performs intermittent reciprocating motion; S4: When the auxiliary mechanism moves, the anti-accumulation component scrapes off the material on the bottom wall of the fermentation cylinder and the surface of the aeration holes, and helps guide the material to the discharge port. After scraping, the anti-clogging component covers the aeration holes for protective aeration. S5: When the auxiliary mechanism moves to the end of its stroke and pauses briefly, the anti-clogging parts not covered by the aeration holes are cleaned by the pressing mechanism, and the internal accumulated material is discharged. S6: After fermentation is complete, the material is discharged from the outlet.

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