A simple silage device for whole soybean stalk

By using the sealing ring and air bladder design of the whole-plant soybean straw silage device, and utilizing inert gas replacement and multiple sealing structures, the problems of airtightness and anaerobic environment are solved, thus achieving the protection of nutritional value and extension of shelf life.

CN224473951UActive Publication Date: 2026-07-10WEIFANG ACADEMY OF AGRICULTURAL SCIENCES ( WEIFANG BRANCH OF SHANDONG ACADEMY OF AGRICULTURAL SCIENCES )
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG ACADEMY OF AGRICULTURAL SCIENCES ( WEIFANG BRANCH OF SHANDONG ACADEMY OF AGRICULTURAL SCIENCES )
Filing Date
2025-06-05
Publication Date
2026-07-10

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Abstract

This utility model discloses a simple silage device for whole soybean straw, relating to the field of agricultural straw processing equipment. The simple silage device for whole soybean straw includes an open-ended tank, and further includes: a detachable sealing cap connected to the tank; a sealing ring integrally formed with the sealing cap, wherein a sealing gasket is provided on the outer wall of the sealing ring, and the sealing gasket fits against the inner wall of the tank; and an annular airbag embedded in the outer wall of the sealing ring, wherein multiple annular sealing grooves are equidistantly formed on the inner wall of the tank. This utility model achieves multiple seals by inflating the airbag and compressing the sealing gasket into the sealing grooves, and by using an air pump to introduce inert gas to replace air and a pressure relief pipe to stabilize the pressure, effectively inhibiting the growth of aerobic microorganisms, reducing nutrient loss, and extending shelf life. Simultaneously, it creates a favorable anaerobic environment to promote fermentation, thereby improving the nutritional value, palatability, and storage management flexibility of the silage.
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Description

Technical Field

[0001] This utility model belongs to the technical field of agricultural straw processing equipment, specifically, it relates to a simple silage device for whole soybean straw. Background Technology

[0002] Soybean straw is rich in nutrients such as protein and fiber. Silage technology can transform it into high-quality feed, effectively preserving nutrients and extending storage time, making it an important way for animal husbandry to achieve efficient resource utilization.

[0003] Currently, when ensiling whole soybean straw, traditional silage pits or simple sealing bags are commonly used. Traditional silage pits are usually sealed by compacting the straw, covering it with plastic film, and pressing it with soil. Simple sealing bags are sealed by heat sealing or tying. During the ensiling process, the operator fills the container with the cut soybean straw, removes as much air as possible, and then seals it. The ensiling is then achieved by fermentation with lactic acid bacteria in an anaerobic environment.

[0004] However, these existing silage equipment and methods still have the following defects in actual use: traditional silage pits are greatly affected by the external environment, the sealing film is easily damaged, allowing air to enter, causing the growth of aerobic microorganisms, resulting in straw mold and nutrient loss. The simple sealing bag has a simple sealing structure, which is difficult to resist the pressure changes generated during fermentation, and is prone to air leakage. It cannot maintain a stable anaerobic environment, affecting the quality and shelf life of silage. In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a simple whole-plant soybean straw silage device that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A simple silage device for whole soybean straw includes an open-ended tank and a detachable sealing cap connected to the tank. A sealing ring is integrally formed with the sealing cap, wherein a sealing gasket is provided on the outer wall of the sealing ring, and the sealing gasket fits against the inner wall of the tank. An annular airbag is embedded in the outer wall of the sealing ring. Multiple annular sealing grooves are equidistantly provided on the inner wall of the tank. When the airbag inflates, it can compress the sealing gasket to fit tightly against the inner wall of the tank, and simultaneously deform the sealing gasket and embed it into the sealing grooves, forming multiple seals.

[0008] Preferably, a gas pump is provided on one side of the tank, a hollow cavity is opened at the bottom of the tank, and multiple sets of air jet holes connected to the hollow cavity are equidistantly arranged on the inner circumference of the bottom of the tank. An external inert gas storage tank is connected to the input end of the gas pump, and the output end of the gas pump is connected to the hollow cavity through a gas delivery pipe. A pressure relief pipe connected to the tank is provided on the sealing cover, and a pressure relief valve is provided on the pressure relief pipe.

[0009] Furthermore, one end of the pressure relief pipe, away from the tank, is connected to the airbag.

[0010] To further maintain a constant air pressure inside the airbag, the sealing cover is provided with a second pressure relief pipe connected to the airbag, and the second pressure relief pipe is provided with a pressure relief valve.

[0011] To facilitate the discharge of the pressurized gas into the airbag and allow the airbag to contract and return to its original position, preferably, an exhaust pipe is fixedly connected to the second pressure relief pipe, and a solenoid valve is installed on the exhaust pipe.

[0012] To facilitate the installation and removal of the sealing cap, preferably, a fixing bolt is also included, through which the sealing cap is detachably connected to the tank body.

[0013] To facilitate the discharge of liquid from the tank, preferably, the bottom of the tank is fixedly connected to a drain pipe, and a valve switch is provided on the drain pipe.

[0014] To reduce liquid residue at the bottom of the tank, the inner wall of the bottom of the tank is further designed to be conical.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] This invention utilizes an airbag to expand and compress a sealing gasket, embedding it into a sealing groove to form a multi-layered seal. An inert gas pump is used to replace the air, and a pressure relief pipe stabilizes the pressure. This effectively inhibits the growth of aerobic microorganisms, reduces nutrient loss, and extends shelf life. At the same time, it creates a favorable anaerobic environment to promote fermentation, thereby improving the nutritional value, palatability, and storage management flexibility of silage. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the tank body and sealing cap of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a utility model Figure 1 Enlarged view of section A;

[0020] Figure 4 This is a utility model Figure 1 Enlarged view of section B.

[0021] In the diagram: 1. Tank body; 101. Sealing cap; 102. Drain pipe; 2. Sealing ring; 201. Sealing gasket; 202. Pressure relief pipe one; 203. Sealing groove; 204. Airbag; 3. Hollow cavity; 301. Jet vent; 302. Gas supply pipe; 303. Gas supply pump; 4. Pressure relief pipe two; 401. Exhaust pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] Example 1:

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A simple silage device for whole soybean straw includes an open tank 1, and further includes: a sealing cap 101 detachably connected to the tank 1; a sealing ring 2 integrally formed with the sealing cap 101, wherein a sealing gasket 201 is provided on the outer wall of the sealing ring 2, and the sealing gasket 201 fits against the inner wall of the tank 1; and an annular airbag 204 embedded in the outer wall of the sealing ring 2. The inner wall of the tank 1 has multiple annular sealing grooves 203 equidistantly spaced. When the airbag 204 inflates, it can compress the sealing gasket 201 to fit tightly against the inner wall of the tank 1, and can also deform the sealing gasket 201 and embed it into the sealing grooves 203, forming multiple seals.

[0025] A gas pump 303 is provided on one side of the tank body 1. A hollow cavity 3 is opened at the bottom of the tank body 1. Multiple sets of air jet holes 301 connected to the hollow cavity 3 are equidistantly arranged on the inner circumference of the bottom of the tank body 1. An external inert gas storage tank is connected to the input end of the gas pump 303. The output end of the gas pump 303 is connected to the hollow cavity 3 through a gas delivery pipe 302. A pressure relief pipe 202 connected to the tank body 1 is provided on the sealing cover 101. A pressure relief valve is provided on the pressure relief pipe 202.

[0026] The end of the pressure relief pipe 202 away from the tank 1 is connected to the airbag 204.

[0027] First, the whole soybean stalks are cut into appropriate lengths and put into the open can 1. Then, the sealing cap 101 with the sealing ring 2 is installed on the can 1 to seal the can 1. At this time, the sealing gasket 201 on the outer wall of the sealing ring 2 is initially attached to the inner wall of the can 1 to form a primary seal.

[0028] Then, the gas pump 303 is started. Inert gas (such as nitrogen) from the external inert gas storage tank is pressurized by the gas pump 303 and enters the hollow cavity 3 at the bottom of tank 1 through the gas pipe 302. It is then ejected through the equidistant jet holes 301 on the inner wall of the bottom of tank 1. The inert gas diffuses within tank 1, gradually replacing the existing air and effectively reducing the oxygen content. This reduction in oxygen content inhibits the growth and reproduction of aerobic microorganisms (such as molds and aerobic bacteria), preventing them from decomposing and destroying the nutrients in the whole soybean straw, thus reducing nutrient loss during silage and ensuring the nutritional value of the silage. As inert gas is continuously introduced, the pressure inside tank 1 gradually increases. When the pressure reaches the opening pressure of the pressure relief valve on the pressure relief pipe 202, some gas is discharged through the pressure relief pipe 202, thereby stabilizing the pressure inside the tank, preventing damage to tank 1 due to excessive pressure, and ensuring the safe and stable operation of the device. Simultaneously, some gas is discharged through the pressure relief pipe 202. 02. The air bladder 204 is introduced, causing it to inflate. The inflated air bladder 204 compresses the sealing gasket 201, making it fit more tightly against the inner wall of the tank 1. The sealing gasket 201 is deformed by the compression and embedded in the sealing grooves 203 that are equidistantly opened on the inner wall of the tank 1, forming a multi-layer sealing structure. This multi-layer sealing structure can further effectively prevent outside air from entering the tank 1, creating a better anaerobic environment inside the tank. This greatly reduces the interference of oxygen on silage fermentation. Under a good anaerobic environment, it is conducive to the growth and fermentation of anaerobic microorganisms such as lactic acid bacteria, promoting the smooth progress of the silage process.

[0029] In summary, the introduction of inert gas and the good sealing effect can inhibit the growth and reproduction of aerobic microorganisms, preventing them from decomposing and destroying the nutrients in the whole soybean straw, reducing the loss of nutrients during silage, ensuring the nutritional value of silage, preventing secondary fermentation, extending the shelf life of silage, allowing farmers to schedule feed use more flexibly, and reducing feed storage and management costs. In addition, because the nutrients are effectively preserved and the fermentation process is more thorough and stable, the silage has better color, aroma and taste, improving palatability and making it more conducive to livestock feeding and digestion.

[0030] Example 2:

[0031] Reference Figure 1 , Figure 3 A simple silage device for whole soybean straw is basically the same as that in Example 1. However, the sealing cover 101 is provided with a pressure relief pipe 24 connected to the air bag 204, and a pressure relief valve is provided on the pressure relief pipe 24.

[0032] During the inflation and expansion of the air bladder 204, if the internal pressure becomes too high, the pressure relief valve on the pressure relief pipe 24 will automatically open to release excess gas inside the air bladder 204, preventing damage to the air bladder 204 due to excessive pressure. At the same time, during the silage process, if other factors (such as temperature changes) cause an abnormal increase in the pressure inside the air bladder 204, the pressure relief pipe 24 can also release pressure in time, ensuring that the air bladder 204 always works under a suitable pressure state, maintaining its compression and sealing effect on the sealing gasket 201, thereby ensuring the sealing of the tank 1, ensuring a stable silage environment, facilitating the smooth progress of the silage fermentation process, and ensuring the quality of the silage feed.

[0033] An exhaust pipe 401 is fixedly connected to the pressure relief pipe 2 4, and a solenoid valve is installed on the exhaust pipe 401;

[0034] When the silage process is complete and the sealing cover 101 needs to be opened to take out the silage, the solenoid valve on the exhaust pipe 401 is opened. The gas in the air bag 204 is discharged through the pressure relief pipe 4 and the exhaust pipe 401. After the gas in the air bag 204 is discharged, the pressure on the sealing gasket 201 is eliminated, so that the sealing cover 101 can be easily removed from the tank 1, making it convenient for farmers to take out the silage.

[0035] Example 3:

[0036] Reference Figure 1 , Figure 2 A simple silage device for whole soybean straw is basically the same as that in Example 1. Furthermore, it also includes fixing bolts, and the sealing cover 101 is detachably connected to the tank body 1 through the fixing bolts.

[0037] During the silage preparation stage, the sealing cap 101 can be quickly and easily installed onto the tank 1 using fixing bolts. No complicated installation tools or professional skills are required. Operators can complete the installation simply by turning the bolts, which greatly saves installation time, lowers the operating threshold, improves the efficiency of the pre-preparation of silage operations, and reduces labor costs. At the same time, the stable fixed connection provides reliable support for the expansion and compression of the sealing gasket 201 by the air bladder 204, so that the sealing gasket 201 can be effectively embedded into the sealing groove 203 to form multiple seals, ensuring the stability of the anaerobic environment inside the tank 1 and creating favorable conditions for silage fermentation.

[0038] After the silage process is completed, the operator can easily remove the fixing bolts by simply using a wrench to turn them in the opposite direction. The operation is relatively convenient, allowing the sealing cap 101 to be quickly separated from the tank 1, making it convenient for farmers to quickly access the silage. Compared with other permanent or complex connection methods, the fixing bolt connection does not require additional disassembly equipment or complicated disassembly steps, which greatly shortens the time for accessing feed, improves feed access efficiency, and allows farmers to flexibly arrange feed use according to actual needs, further reducing labor and time costs.

[0039] Example 4:

[0040] Reference Figure 1 A simple silage device for whole soybean straw is basically the same as that in Example 1. Furthermore, the bottom of the tank 1 is fixedly connected to a drain pipe 102, and a valve switch is provided on the drain pipe 102.

[0041] During the silage process, straw will produce some excess liquid, such as seepage juice. This liquid can be discharged in a timely manner through the drain pipe 102 fixedly connected to the bottom of the tank 1. The drainage process is controlled by opening and closing the valve switch on the drain pipe 102 to discharge excess liquid in a timely manner, preventing the liquid from accumulating in the tank 1 and affecting the silage quality, such as causing mold growth in the silage. At the same time, keeping the environment inside the tank 1 relatively dry is conducive to the growth and fermentation of anaerobic microorganisms, thereby improving the quality and shelf life of the silage.

[0042] The bottom inner wall of tank 1 is conical;

[0043] The conical shape of the inner wall at the bottom of tank 1 allows excess liquid generated inside tank 1 to more easily accumulate towards the center of the bottom under the influence of gravity. Combined with the drain pipe 102, the liquid can be discharged from tank 1 more efficiently. Compared with a flat-bottom design, the conical bottom reduces the amount of liquid residue in tank 1, further avoiding adverse effects on silage quality caused by liquid accumulation. It is more conducive to maintaining a good silage environment, promoting smooth silage fermentation, and ensuring the quality and grade of silage feed.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A simple silage device for whole soybean straw, comprising an open-ended tank (1), characterized in that, Also includes: Remove the sealing cap (101) connected to the tank body (1); A sealing ring (2) is integrally formed with the sealing cap (101), wherein a sealing gasket (201) is provided on the outer wall of the sealing ring (2), and the sealing gasket (201) is in contact with the inner wall of the tank body (1); An airbag (204) arranged in a ring shape is embedded in the outer wall of the sealing ring (2). The inner wall of the tank (1) is provided with a plurality of sealing grooves (203) arranged in a ring shape at equal intervals. When the airbag (204) expands, it can squeeze the sealing gasket (201) to fit tightly against the inner wall of the tank (1). At the same time, it can also deform the sealing gasket (201) and embed it into the sealing groove (203) to form a multiple seal.

2. The simple silage device for whole soybean straw according to claim 1, characterized in that, A gas pump (303) is provided on one side of the tank (1). A hollow cavity (3) is opened at the bottom of the tank (1). Multiple sets of air jet holes (301) connected to the hollow cavity (3) are equidistantly arranged on the inner circumference of the bottom of the tank (1). An external inert gas storage tank is connected to the input end of the gas pump (303). The output end of the gas pump (303) is connected to the hollow cavity (3) through a gas delivery pipe (302). A pressure relief pipe (202) connected to the tank (1) is provided on the sealing cover (101). A pressure relief valve is provided on the pressure relief pipe (202).

3. A simple silage device for whole soybean straw according to claim 2, characterized in that, The end of the pressure relief pipe (202) away from the tank (1) is connected to the airbag (204).

4. A simple silage device for whole soybean straw according to claim 3, characterized in that, The sealing cap (101) is provided with a pressure relief pipe (4) that is connected to the airbag (204), and the pressure relief pipe (4) is provided with a pressure relief valve.

5. A simple silage device for whole soybean straw according to claim 4, characterized in that, The pressure relief pipe 2 (4) is fixedly connected to an exhaust pipe (401), and an electromagnetic valve is installed on the exhaust pipe (401).

6. A simple silage device for whole soybean straw according to claim 1, characterized in that, It also includes fixing bolts, and the sealing cap (101) is detachably connected to the tank body (1) by fixing bolts.

7. A simple silage device for whole soybean straw according to claim 1, characterized in that, The bottom of the tank (1) is fixedly connected to a drain pipe (102), and a valve switch is provided on the drain pipe (102).

8. A simple silage device for whole soybean straw according to claim 7, characterized in that, The bottom inner wall of the tank (1) is conical.