Silage corn fermentation device

Abstract

The utility model discloses a silage corn fermentation device which comprises a fermentation tank, a stirring mechanism is arranged on the fermentation tank, the stirring mechanism comprises a mounting frame, a transmission mechanism, a shaft sleeve, a rotating rod, a mounting frame and stirring blades, and a pressure relief mechanism is arranged on the fermentation tank. The pressure relief mechanism comprises a pressure relief sleeve, a sealing sleeve, a center rod, a conical block, supporting plates, a push spring and a sealing block, the pressure relief sleeve is mounted at the top end of the fermentation tank, the sealing sleeve is arranged in the pressure relief sleeve, the center rod is mounted on the top surface of the sealing sleeve, the conical block is mounted at the top end of the center rod, and multiple groups of supporting plates are mounted in the pressure relief sleeve. The push springs are installed on the inner sides of the multiple sets of supporting plates, the sealing blocks are installed at the top ends of the multiple sets of push springs, the pressure relief mechanism plays a crucial role in the fermentation process, and when the gas pressure in the fermentation tank rises, especially when the temperature is high or fermentation is violent, the pressure relief mechanism can sensitively respond and release too high pressure.

Description

Technical Field

[0001] This utility model relates to the field of modern agricultural production technology, and more specifically, it relates to a silage corn fermentation device. Background Technology

[0002] In modern agricultural production, silage corn fermentation is a commonly used feed processing method. Its core is to extend the storage time of feed and improve its nutritional value through the fermentation process. However, in the existing technology, there are obvious deficiencies in the pretreatment of silage corn before fermentation, especially in the process of material mixing, which makes it difficult to achieve uniform stirring. Due to insufficient contact between the fermenting agent and silage corn, the efficiency and effect of the fermentation process will be limited, which can easily lead to incomplete fermentation of some materials, thus affecting the final feed quality.

[0003] During fermentation, as the organic matter inside the silage corn decomposes, a large amount of gas is produced, causing the gas pressure inside the fermentation device to gradually increase. Especially under high temperature or vigorous fermentation conditions, this pressure may rise rapidly. If excessive gas cannot be discharged in time, the gas pressure inside the tank may exceed the safe range, thereby causing the tank to rupture or other safety accidents. This not only threatens the safety of the equipment, but may also cause economic losses and personal injury.

[0004] Furthermore, in the process of injecting the fermenting agent, it is impossible to accurately adjust the amount of fermenting agent added according to the different material requirements and fermentation stages. This uncontrollable method of adding the agent may result in the use of too much or too little fermenting agent, which in turn affects the uniformity and efficiency of fermentation, while increasing production costs and limiting the optimal use of the silage corn fermentation device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a silage corn fermentation device to solve the technical problems mentioned in the background art, such as the difficulty in achieving uniform stirring and the inability to timely discharge excessive gas.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a silage corn fermentation device, comprising a fermentation tank, wherein a stirring mechanism is provided on the fermentation tank, the stirring mechanism comprising a mounting frame, a transmission mechanism, a bushing, a rotating rod, a mounting frame, and stirring blades, the mounting frame being mounted on the top surface of the fermentation tank, the bushing being rotatably mounted on the fermentation tank, the rotating rod being rotatably connected to the bushing and the fermentation tank, the mounting frame being mounted on the bottom end of the bushing, and multiple sets of stirring blades being respectively mounted on the outside of the rotating rod and the mounting frame, wherein a pressure relief mechanism is provided on the fermentation tank, the pressure relief mechanism comprising a pressure relief sleeve, a sealing sleeve, a central rod, a cone block, a support plate, a push spring, and a sealing block, the pressure relief sleeve being mounted on the top of the fermentation tank, the sealing sleeve being disposed inside the pressure relief sleeve, the central rod being mounted on the top surface of the sealing sleeve, the cone block being mounted on the top of the central rod, multiple sets of support plates being disposed inside the pressure relief sleeve, the push springs being mounted on the inner side of the multiple sets of support plates, and the sealing block being mounted on the top of the multiple sets of push springs.

[0009] The present invention is further configured such that the transmission mechanism includes a motor, a main gear, a driven gear, and a secondary gear. The motor is mounted on one side of the mounting frame, the main gear is mounted on the output end of the motor, the driven gear is rotatably mounted on the mounting frame and fixedly connected to the rotating rod, and the secondary gear is fixedly mounted on the top of the bushing. This realizes efficient transmission of motor drive to the rotating rod, ensures stable power output of the equipment, helps the stable operation of the stirring mechanism, and improves the mixing efficiency during the fermentation process.

[0010] The present invention is further configured such that a limiting sleeve is provided on the outside of the sealing sleeve, and the limiting sleeve is slidably connected to multiple sets of the support plates. Through the design of the limiting sleeve, the movement of the sealing sleeve is effectively restricted, ensuring that the sealing sleeve is tightly fitted with other components, preventing leakage of materials inside and outside the fermenter, and improving the sealing performance and safety of the equipment.

[0011] The present invention is further configured such that baffles are installed at the top of each of the multiple sets of support plates. The baffles are provided in multiple sets and are slidably connected to the upper and lower sides of the sealing block. The sliding cooperation between the baffles and the sealing block ensures the high efficiency of sealing and avoids sealing failure caused by the displacement of the sealing block. This improves the airtightness of the fermenter and ensures the safety and efficiency of the fermentation process.

[0012] The present invention is further configured such that the top surface of the cone block slides in contact with the bottom surface of the multiple sets of sealing blocks. Through the sliding contact between the cone block and the sealing blocks, the airtightness of the fermentation tank is effectively achieved, preventing gas leakage during the fermentation process, and enhancing the stability and sealing performance of the fermentation environment.

[0013] The present invention is further configured such that a feed inlet is provided on the top surface of the fermentation tank, and a sealing cover is rotatably installed on the feed inlet. The design of the sealing cover not only facilitates operation, but also effectively seals the feed inlet, preventing gas leakage and pollution of the external environment, thereby improving the efficiency and safety of the fermentation process.

[0014] The present invention is further configured such that a volume control mechanism is provided at the top of the fermentation tank. The volume control mechanism includes a volume control sleeve, an adjusting sleeve, a connecting sleeve, a screw, a sealing rod, a flow-through sleeve, a flow-through hole, and a connecting pipe. The volume control sleeve is installed on the top surface of the fermentation tank. The adjusting sleeve is rotatably installed at the top of the volume control sleeve. The connecting sleeve is installed inside the adjusting sleeve. The screw is threadedly connected to the connecting sleeve. The sealing rod is rotatably installed at the bottom end of the screw. The flow-through sleeve is installed inside the volume control sleeve and is slidably connected to the sealing rod. Multiple sets of flow-through holes are distributed on the flow-through sleeve. The connecting pipe is rotatably installed at the top of the adjusting sleeve and connected to an external delivery pipe. This mechanism design also ensures the uniformity of the fermentation agent injection, which helps to improve the uniformity and effect of fermentation, and further improves the quality and production efficiency of silage corn fermentation.

[0015] The present invention is further configured such that a sliding groove is provided on the outer wall of the sealing rod, and a sliding strip is provided on the inner wall of the flow sleeve. Multiple sets of the sliding groove and the sliding strip are provided and slidably connected. The cooperative design of the sliding groove and the sliding strip can improve the stability and control accuracy of the sealing rod.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a silage corn fermentation device, which has the following features:

[0018] Beneficial effects:

[0019] 1. The mixing mechanism effectively solves the problem of uneven material mixing through the coordinated work of components such as the mixing blades and rotating rods installed on the fermentation tank. The multi-blade design of the mixing blades can generate uniform liquid flow and mixing force in the fermentation tank, avoiding raw material sedimentation or stratification, and ensuring a more uniform fermentation process for silage corn. This uniform mixing not only helps to improve the contact efficiency of the fermenting agent and enhance the effect of the fermentation process, but also promotes the decomposition of organic matter, making the fermentation more efficient, thereby improving the nutritional value and preservation of the feed.

[0020] 2. The pressure relief mechanism plays a crucial role in the fermentation process. When the gas pressure inside the fermenter rises, especially at high temperatures or during vigorous fermentation, the pressure relief mechanism can respond sensitively and release excessive pressure. The sealing sleeve, through its sliding action in conjunction with the support plate and push spring, drives the sealing block to slide along the baffle, releasing the accumulated gas. This avoids the risk of the fermenter rupture or equipment damage due to excessive pressure. At the same time, the gas release process maintains a safe gas pressure environment inside the fermenter, thereby ensuring the safety and operational stability of the equipment. This mechanism, through continuous cyclical operation, ensures that the gas pressure remains in a safe and balanced state during fermentation, avoiding potential safety hazards.

[0021] 3. The flow control mechanism ensures the stability of the fermentation environment by adjusting the injection amount of the fermenting agent. Through the cooperation of components such as the adjusting sleeve, connecting sleeve, and screw, this mechanism can precisely adjust the movement of the sealing rod, thereby controlling the opening of multiple sets of flow holes and regulating the flow rate of the fermenting agent entering the fermenter. In this way, the amount of fermenting agent added can be flexibly adjusted according to actual needs, avoiding the problems of over- or under-injection, ensuring a stable inflow of materials, optimizing the efficiency of fermenting agent use, and reducing production costs. At the same time, the design of this mechanism also ensures the uniformity of fermenting agent injection, which helps to improve the uniformity and effect of fermentation, further enhancing the quality and production efficiency of silage corn fermentation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a silage corn fermentation device according to the present invention;

[0023] Figure 2 This is a cross-sectional view of the fermenter in this utility model.

[0024] Figure 3 This is a cross-sectional view of the pressure relief sleeve in this utility model;

[0025] Figure 4 This is a cross-sectional view of the central control measuring sleeve of this utility model;

[0026] Figure 5 This is a schematic diagram of the limiting sleeve in this utility model.

[0027] In the diagram: 1. Fermentation tank; 2. Mounting frame; 3. Bushing; 4. Rotating rod; 5. Mounting frame; 6. Stirring blade; 7. Pressure relief sleeve; 8. Sealing sleeve; 9. Center rod; 10. Cone block; 11. Support plate; 12. Push spring; 13. Sealing block; 14. Motor; 15. Main gear; 16. Driven gear; 17. Secondary gear; 18. Limiting sleeve; 19. Baffle; 20. Feed inlet; 21. Sealing cover; 22. Quantity control sleeve; 23. Adjusting sleeve; 24. Connecting sleeve; 25. Screw; 26. Sealing rod; 27. Flow sleeve; 28. Flow hole; 29. ​​Connecting pipe; 30. Slide groove; 31. Slide bar. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 A silage corn fermentation device includes a fermentation tank 1. The fermentation tank 1 is equipped with a stirring mechanism, which includes a mounting frame 2, a transmission mechanism, a bushing 3, a rotating rod 4, a mounting frame 5, and stirring blades 6. The mounting frame 2 is installed on the top surface of the fermentation tank 1. The bushing 3 is rotatably installed on the fermentation tank 1. The rotating rod 4 rotatably connects the bushing 3 to the fermentation tank 1. The mounting frame 5 is installed at the bottom end of the bushing 3. Multiple sets of stirring blades 6 are respectively installed on the outer sides of the rotating rod 4 and the mounting frame 5. The fermentation tank 1 is equipped with a pressure relief mechanism, which includes a pressure relief sleeve 7, a sealing sleeve 8, a central rod 9, a cone block 10, a support plate 11, a push spring 12, and a sealing block 13. The pressure relief sleeve 7 is installed at the top of the fermentation tank 1. The sealing sleeve 8 is located inside the pressure relief sleeve 7. The central rod 9 is installed on the top surface of the sealing sleeve 8. The cone block 10 is installed at the top of the central rod 9. Multiple sets of support plates 11 are installed inside the pressure relief sleeve 7. The push spring 12 is installed inside the multiple sets of support plates 11. The sealing block 13 is installed at the top of the multiple sets of push springs 12.

[0032] The transmission mechanism includes a motor 14, a main gear 15, a driven gear 16, and a secondary gear 17. The motor 14 is mounted on one side of the mounting bracket 2, the main gear 15 is mounted on the output end of the motor 14, the driven gear 16 is rotatably mounted on the mounting bracket 2 and fixedly connected to the rotating rod 4, and the secondary gear 17 is fixedly mounted on the top of the bushing 3. The motor 14 drives the main gear 15, thereby driving the driven gear 16 that meshes with it to rotate, and the power is transmitted through the rotating rod 4 connected to the driven gear 16. The secondary gear 17 optimizes the power distribution and ensures the coordinated operation of each component.

[0033] A limiting sleeve 18 is provided on the outside of the sealing sleeve 8. The limiting sleeve 18 is slidably connected to multiple sets of support plates 11. The limiting sleeve 18 limits the range of motion of the sealing sleeve 8 by slidably connecting to the support plates 11, thereby ensuring its stability and sealing performance during operation.

[0034] Each of the multiple support plates 11 has a baffle 19 installed at its top. The baffle 19 is provided in multiple sets and is slidably connected to the upper and lower sides of the sealing block 13 to provide guidance and ensure that the sealing block 13 is always in the correct position, thus ensuring the accuracy of the sealing operation.

[0035] The top surface of the cone block 10 slides in contact with the bottom surface of multiple sets of sealing blocks 13. The cone block 10 and the sealing blocks 13 transmit pressure through sliding contact, maintain sealing, prevent gas leakage, and enhance the airtightness of the equipment.

[0036] The fermenter 1 has a feed inlet 20 on its top surface. A sealing cover 21 is rotatably installed on the feed inlet 20. The sealing cover 21 installed on the feed inlet 20 of the fermenter 1 is controlled by a rotary switch, which facilitates feeding and effectively prevents material leakage and external pollution.

[0037] In this embodiment, the material is injected into the fermentation tank 1 through the feed inlet 20. After injection, the feed inlet 20 is sealed with the sealing cap 21. The motor 14 is started, driving the main gear 15 to rotate, which in turn drives the auxiliary gear 17 and the driven gear 16 to rotate. The auxiliary gear 17 drives the mounting frame 5 to rotate through the bushing 3, and the driven gear 16 drives the rotating rod 4 to rotate. The mounting frame 5 and the rotating rod 4 drive the stirring blades 6 mounted on their surfaces to rotate. The rotation of the stirring blades 6 generates a certain liquid flow or stirring force in the fermentation tank 1, promoting the uniform mixing of the silage corn raw materials. This effectively mixes the materials and prevents sedimentation or stratification. During the fermentation process, as the silage corn ferments, the gas pressure in the fermentation tank 1 gradually increases. Especially under high temperature or vigorous fermentation conditions, the pressure may rise rapidly. When the gas pressure reaches the preset value, it will push the sealing sleeve 8 to move upward. The sealing sleeve 8 slides along multiple sets of support plates 11 through the limiting sleeve 18. The central rod 9 inside the sealing sleeve 8 pushes the cone block 10 to move upward and pushes multiple sets of sealing blocks 13, so that the multiple sets of sealing blocks 13 slide along the baffle 19 and push the push spring 12 to squeeze. The change in the gap between the cone block 10 and the sealing block 13 promotes gas discharge. The design of the support plate 11 and the push spring 12 can ensure the sensitive response of the pressure relief mechanism. As the pressure is released, the gas escapes through the channels of the pressure relief sleeve 7, the sealing sleeve 8 and the cone block 10. When the gas pressure drops to a safe range, the reaction force of the push spring 12 will restore the pressure relief system to the initial state, ensuring that the pressure inside the tank is in a safe and balanced state. This process is continuously cyclical, ensuring that the pressure inside the tank is always effectively controlled throughout the fermentation process.

[0038] Please see Figure 4 As one implementation of the flow control mechanism: A flow control mechanism is provided at the top of the fermenter 1. The flow control mechanism includes a flow control sleeve 22, an adjusting sleeve 23, a connecting sleeve 24, a screw 25, a sealing rod 26, a flow passage sleeve 27, a flow passage hole 28, and a connecting pipe 29. The flow control sleeve 22 is installed on the top surface of the fermenter 1. The adjusting sleeve 23 is rotatably installed at the top of the flow control sleeve 22. The connecting sleeve 24 is installed inside the adjusting sleeve 23. The screw 25 is threadedly installed inside the connecting sleeve 24. The sealing rod 26 is rotatably installed at the bottom end of the screw 25. The flow passage sleeve 27 is installed inside the flow control sleeve 22 and is slidably connected to the sealing rod 26. Multiple sets of flow passage holes 28 are provided on the flow passage sleeve 27. The connecting pipe 29 is rotatably installed at the top of the adjusting sleeve 23 and is connected to an external conveying pipe.

[0039] The outer wall of the sealing rod 26 is provided with a groove 30, and the inner wall of the flow sleeve 27 is provided with a slide bar 31. Multiple sets of grooves 30 and slide bars 31 are provided and are slidably connected. The grooves 30 on the sealing rod 26 are slidably connected with the slide bars 31 on the inner wall of the flow sleeve 27. Through precise sliding cooperation, the smoothness of the movement of the sealing rod 26 and the accurate control of the flow are ensured.

[0040] More specifically, during the fermentation process, the external fermentation agent delivery pipe is connected to the connecting pipe 29. When it is necessary to adjust the injection amount of the fermentation agent, the adjusting sleeve 23 is rotated to drive the connecting sleeve 24 to rotate. The rotating connecting sleeve 24 engages with the screw 25 through a threaded connection, thereby driving the screw 25 to move along the connecting sleeve 24. The movement of the screw 25 simultaneously drives the sealing rod 26 to move. The sealing rod 26 is positioned by the sliding groove 30 and the sliding strip 31. The sealing rod 26 slides along the flow sleeve 27 to change the sealing area of ​​the multiple sets of flow holes 28, thereby adjusting the fluid flow rate in the flow sleeve 27, ensuring a stable inflow of materials, avoiding excessive or insufficient feeding, and ensuring the stability of the fermentation environment.

[0041] In summary, during the use or operation of the entire equipment: material is injected into the fermentation tank 1 through the feed inlet 20. After injection, the feed inlet 20 is sealed with the sealing cap 21. The motor 14 starts, driving the main gear 15 to rotate, which in turn drives the auxiliary gear 17 and the driven gear 16 to rotate. The auxiliary gear 17 drives the mounting frame 5 to rotate through the bushing 3, and the driven gear 16 drives the rotating rod 4 to rotate. The mounting frame 5 and the rotating rod 4 respectively drive the stirring blades 6 mounted on their surfaces to rotate. The rotation of the stirring blades 6 generates a certain liquid flow or stirring force in the fermentation tank 1, promoting the uniform mixing of the silage corn raw materials. This effectively mixes the materials and prevents sedimentation or stratification. During the fermentation process, as the silage corn ferments, the gas pressure in the fermentation tank 1 will gradually increase, especially under conditions of high temperature or vigorous fermentation, where the pressure may rise rapidly. When the gas pressure inside the tank reaches a preset value, it will push the sealing sleeve 8 to move upward. The sealing sleeve 8 slides along multiple sets of support plates 11 through the limiting sleeve 18. The central rod 9 inside the sealing sleeve 8 pushes the cone block 10 to move upward and pushes multiple sets of sealing blocks 13, so that the multiple sets of sealing blocks 13 slide along the baffle 19 and push the push spring 12 to squeeze. The change in the gap between the cone block 10 and the sealing block 13 promotes gas discharge. The design of the support plate 11 and the push spring 12 can ensure the sensitive response of the pressure relief mechanism. As the pressure is released, the gas escapes through the channels of the pressure relief sleeve 7, the sealing sleeve 8 and the cone block 10. When the gas pressure drops to a safe range, the reaction force of the push spring 12 will restore the pressure relief system to the initial state, ensuring that the pressure inside the tank is in a safe and balanced state. This process is continuously cycled to ensure that the pressure inside the tank is always effectively controlled throughout the fermentation process.

[0042] During fermentation, the external fermentation agent delivery pipe is connected to the connecting pipe 29. When it is necessary to adjust the injection amount of fermentation agent, rotating the adjusting sleeve 23 drives the connecting sleeve 24 to rotate. The rotating connecting sleeve 24 engages with the screw 25 through a threaded connection, thereby driving the screw 25 to move along the connecting sleeve 24. The movement of the screw 25 simultaneously drives the sealing rod 26 to move. The sealing rod 26 is positioned by the sliding groove 30 and the sliding strip 31. The sealing rod 26 slides along the flow sleeve 27 to change the sealing area of ​​the multiple sets of flow holes 28, thereby adjusting the fluid flow rate in the flow sleeve 27, ensuring a stable inflow of material, avoiding excessive or insufficient feeding, and ensuring the stability of the fermentation environment.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A silage corn fermentation device, comprising a fermentation tank (1), characterized in that: The fermentation tank (1) is equipped with a stirring mechanism, which includes a mounting frame (2), a transmission mechanism, a bushing (3), a rotating rod (4), a mounting frame (5), and stirring blades (6). The mounting frame (2) is installed on the top surface of the fermentation tank (1). The bushing (3) is rotatably installed on the fermentation tank (1). The rotating rod (4) rotatably connects the bushing (3) and the fermentation tank (1). The mounting frame (5) is installed at the bottom end of the bushing (3). Multiple sets of stirring blades (6) are respectively installed on the outside of the rotating rod (4) and the mounting frame (5). The fermentation tank (1) is equipped with a pressure relief mechanism, which includes... The components include a pressure relief sleeve (7), a sealing sleeve (8), a central rod (9), a cone block (10), a support plate (11), a push spring (12), and a sealing block (13). The pressure relief sleeve (7) is installed at the top of the fermenter (1). The sealing sleeve (8) is located inside the pressure relief sleeve (7). The central rod (9) is installed on the top surface of the sealing sleeve (8). The cone block (10) is installed at the top of the central rod (9). Multiple sets of support plates (11) are installed inside the pressure relief sleeve (7). The push spring (12) is installed inside the multiple sets of support plates (11). The sealing block (13) is installed at the top of the multiple sets of push springs (12).

2. The silage corn fermentation device according to claim 1, characterized in that: The transmission mechanism includes a motor (14), a main gear (15), a driven gear (16), and a secondary gear (17). The motor (14) is mounted on one side of the mounting bracket (2). The main gear (15) is mounted on the output end of the motor (14). The driven gear (16) is rotatably mounted on the mounting bracket (2) and fixedly connected to the rotating rod (4). The secondary gear (17) is fixedly mounted on the top of the bushing (3).

3. The silage corn fermentation device according to claim 2, characterized in that: The sealing sleeve (8) is provided with a limiting sleeve (18) on the outside, and the limiting sleeve (18) is slidably connected to multiple sets of the support plates (11).

4. The silage corn fermentation device according to claim 3, characterized in that: multiple sets Each of the support plates (11) is equipped with a baffle (19) at its top. Multiple sets of the baffle (19) are provided and are slidably connected to the upper and lower sides of the sealing block (13).

5. The silage corn fermentation device according to claim 4, characterized in that: The top surface of the cone block (10) slides in contact with the bottom surface of the multiple sets of sealing blocks (13).

6. The silage corn fermentation device according to claim 5, characterized in that: The fermenter (1) has a feed inlet (20) on its top surface, and a sealing cover (21) is rotatably installed on the feed inlet (20).

7. A silage corn fermentation device according to claim 6, characterized in that: The fermenter (1) is provided with a flow control mechanism at the top. The flow control mechanism includes a flow control sleeve (22), an adjusting sleeve (23), a connecting sleeve (24), a screw (25), a sealing rod (26), a flow passage sleeve (27), a flow passage hole (28), and a connecting pipe (29). The flow control sleeve (22) is installed on the top surface of the fermenter (1). The adjusting sleeve (23) is rotatably installed on the top of the flow control sleeve (22). The connecting sleeve (24) is installed inside the adjusting sleeve (23). The screw (25) is threadedly installed inside the connecting sleeve (24). The sealing rod (26) is rotatably installed at the bottom end of the screw (25). The flow passage sleeve (27) is installed inside the flow control sleeve (22) and is slidably connected to the sealing rod (26). The flow passage hole (28) is provided in multiple sets distributed on the flow passage sleeve (27). The connecting pipe (29) is rotatably installed on the top of the adjusting sleeve (23) and connected to an external conveying pipe.

8. A silage corn fermentation device according to claim 7, characterized in that: The sealing rod (26) has a groove (30) on its outer wall and a slide bar (31) on its inner wall. The groove (30) and the slide bar (31) are provided in multiple sets and are slidably connected.

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