A whole-plant soybean stalk pretreatment device

By using an electric telescopic rod and a motor-driven pressing plate, rotating shaft, and spiral blade device, the compaction and uniformity problems in soybean straw fermentation equipment are solved, achieving efficient fermentation of soybean straw and improving fermentation quality and efficiency.

CN224299201UActive Publication Date: 2026-05-29WEIFANG ACADEMY OF AGRICULTURAL SCIENCES ( WEIFANG BRANCH OF SHANDONG ACADEMY OF AGRICULTURAL SCIENCES )

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
2025-05-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing fermentation equipment is unable to effectively compact and uniformly ferment soybean straw, resulting in wasted fermentation space and fermentation dead zones, which affects fermentation quality and efficiency.

Method used

The device employs a pressing plate with an electric telescopic rod and a motor-driven rotating shaft and spiral blades to compact and circulate the straw. Combined with a sealing cover and a drainage structure, it ensures airtightness and convenient operation.

Benefits of technology

It improves the uniformity and efficiency of fermentation, reduces space waste, ensures full contact between straw and pesticides, and enhances fermentation quality and consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a whole soybean straw pretreatment device relates to the field of agricultural waste treatment, a whole soybean straw pretreatment device, including the top is set up the fermentation tank of opening, still include: the sealed cover is dismantled and is connected on the top of fermentation tank, the pressure plate with the leakage hole is slidably connected in the fermentation tank, the feed cylinder in the fermentation tank is fixedly connected on the sealed cover, wherein, the pressure plate is sleeved on the feed cylinder, and the lower end portion lateral wall of feed cylinder is provided with the feed inlet, and the upper end portion lateral wall is provided with the discharge port, the utility model discloses, through electric telescopic link pushing pressure plate compaction straw, reduces the fermentation space waste, makes straw full soaking reagent, promotes full fermentation, the motor drives rotating shaft and spiral blade and makes straw circulate and turn over, breaks traditional static fermentation limit, lets straw and reagent full contact, eliminates the fermentation dead angle, promotes the consistency of pretreatment effect, ensures the even fermentation.
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Description

Technical Field

[0001] This utility model belongs to the technical field of reading aids, specifically, it relates to a whole-plant soybean straw pretreatment device. Background Technology

[0002] Soybean straw contains abundant fiber and other substances, and has great application potential in agriculture and related fields. Through proper processing, soybean straw can be transformed into more valuable resources, such as for feed production and bioenergy production.

[0003] Currently, in order to achieve efficient utilization of soybean straw, it is necessary to ferment it. Fermentation can decompose the complex components in the straw, making it easier for animals to digest and absorb, thus improving the nutritional value of feed. At the same time, it also helps the straw to be better converted into usable energy substances in the process of bioenergy production, thereby improving energy output efficiency.

[0004] However, existing fermentation equipment has several drawbacks when fermenting soybean straw. On the one hand, the straw is difficult to compact effectively in the fermentation tank, resulting in loose straw piles that occupy too much fermentation space and fail to fully soak in the fermentation agent, affecting the degree of fermentation. On the other hand, most fermentation equipment uses a static fermentation method, which makes it difficult for the straw and the agent to fully contact each other, creating fermentation dead zones. This leads to significant differences in pretreatment effects and makes it difficult to ensure fermentation uniformity, thereby reducing the fermentation quality and utilization efficiency of soybean straw. Therefore, 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 whole-plant soybean straw pretreatment 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 whole-plant soybean straw pretreatment device includes a fermentation tank with an open top, and further includes: a sealing cover, detachably connected to the top of the fermentation tank; a pressure plate with a leakage hole, slidably connected in the fermentation tank; and a conveying cylinder located in the fermentation tank, fixedly connected to the sealing cover, wherein the pressure plate is sleeved on the conveying cylinder, the lower end side wall of the conveying cylinder has a feed inlet and the upper end side wall has a discharge outlet, and a rotating shaft is rotatably connected inside the conveying cylinder, with helical blades fixedly installed on the rotating shaft.

[0008] In order to drive the pressure plate to rise and fall inside the fermentation tank, preferably, an electric telescopic rod is fixedly installed on the sealing cover, and the pressure plate is fixedly connected to the telescopic end of the electric telescopic rod.

[0009] In order to drive the rotating shaft to rotate, preferably, a motor is fixedly installed on the sealing cover, and the rotating shaft is fixedly connected to the output end of the motor.

[0010] To facilitate the discharge of the fermented material from the fermentation tank after fermentation, preferably, the inner wall of the bottom of the fermentation tank is conical, and a drain pipe is fixedly connected to the bottom of the fermentation tank, with a valve switch installed on the drain pipe.

[0011] 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 fermenter.

[0012] To further enhance the sealing performance at the connection between the sealing cap and the fermenter, a sealing ring is fixedly connected to the sealing cap, and a sealing gasket is provided on the outer wall of the sealing ring, which fits against the inner wall of the fermenter.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] This invention uses an electric telescopic rod to push a pressure plate to compact the straw, reducing wasted fermentation space and allowing the straw to be fully soaked in the agent, promoting full fermentation. The motor drives the rotating shaft and spiral blades to circulate and turn the straw, breaking the limitations of traditional static fermentation, allowing the straw to fully contact the agent, eliminating fermentation dead zones, improving the consistency of pretreatment effect, and ensuring uniform fermentation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fermenter and sealing cap of this utility model;

[0017] Figure 3 This is a cross-sectional view of the fermenter, conveying cylinder, and sealing cap of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention;

[0019] Figure 5 This is a utility model Figure 3 Enlarged view of part A in the middle.

[0020] In the diagram: 1. Fermentation tank; 101. Sealing cover; 102. Fixing bolt; 103. Drain pipe; 2. Sealing ring; 201. Sealing gasket; 3. Pressure plate; 301. Electric telescopic rod; 302. Feeding cylinder; 303. Rotating shaft; 304. Spiral blade; 305. Feed inlet; 306. Discharge outlet; 307. Motor. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A whole-plant soybean straw pretreatment device includes a fermentation tank 1 with an open top, and further includes: a sealing cover 101, detachably connected to the top of the fermentation tank 1; a pressure plate 3 with a leakage hole, slidably connected in the fermentation tank 1; and a conveying cylinder 302 located in the fermentation tank 1, fixedly connected to the sealing cover 101, wherein the pressure plate 3 is sleeved on the conveying cylinder 302, the lower end side wall of the conveying cylinder 302 has an inlet 305 and the upper end side wall has a discharge port 306, and a rotating shaft 303 is rotatably connected inside the conveying cylinder 302, and a spiral blade 304 is fixedly installed on the rotating shaft 303.

[0024] An electric telescopic rod 301 is fixedly installed on the sealing cover 101, and the pressure plate 3 is fixedly connected to the telescopic end of the electric telescopic rod 301.

[0025] A motor 307 is fixedly installed on the sealing cover 101, and the rotating shaft 303 is fixedly connected to the output end of the motor 307.

[0026] When using it, first add the whole soybean straw to be treated into the tank through the opening at the top of the fermentation tank 1, then add the fermentation aid. After that, the operator installs the sealing cap 101, which is used to close the opening of the tank, onto the fermentation tank 1 to ensure a good seal.

[0027] Next, the electric telescopic rod 301 is activated, and its telescopic end pushes the pressure plate 3 to slide down along the conveying cylinder 302 to compact the straw, so that the straw is fully soaked in the agent, reducing the waste of fermentation space and promoting full fermentation;

[0028] After the straw absorbs the pesticide and settles to the bottom, the electric telescopic rod 301 drives the pressure plate 3 to reset, starts the motor 307, and drives the rotating shaft 303 and the spiral blades 304 to rotate. The settled straw enters the conveying cylinder 302 through the feed inlet 305, and is discharged through the discharge outlet 306 under the push of the spiral blades 304 and falls back into the tank. This realizes the bottom-up circulation and turning of the straw, breaking the limitations of traditional static fermentation, allowing the straw to fully contact the pesticide, eliminating fermentation dead zones, improving the consistency of pretreatment effect, and ensuring uniform fermentation.

[0029] Example 2:

[0030] Reference Figure 1 , Figure 3 , Figure 5 A whole-plant soybean straw pretreatment device is basically the same as that in Example 1, but further includes a fixing bolt 102, and the sealing cover 101 is detached and connected to the fermentation tank 1 by the fixing bolt 102.

[0031] Before adding straw into fermentation tank 1, first separate the sealing cover 101 from fermentation tank 1. When the straw has been added and fermentation tank 1 needs to be sealed, place the sealing cover 101 on top of fermentation tank 1, align the mounting holes of the two, and then pass the fixing bolts 102 through the mounting holes in sequence and tighten them to make the sealing cover 101 firmly installed on fermentation tank 1, thereby sealing fermentation tank 1. When it is necessary to open fermentation tank 1 for cleaning or inspection, loosen the fixing bolts 102 and the sealing cover 101 can be removed.

[0032] In summary, the fixing bolt 102 passes through the mounting holes on the top of the sealing cover 101 and the fermentation tank 1, and uses the bolt to tightly connect the sealing cover 101 and the fermentation tank 1 together, providing sufficient connection strength to ensure the sealing of the fermentation tank 1 during operation. At the same time, this connection method is easy to disassemble, making it convenient to perform various operations inside the fermentation tank 1, such as adding materials and cleaning the tank.

[0033] A sealing ring 2 is fixedly connected to the sealing cover 101, and a sealing gasket 201 is provided on the outer wall of the sealing ring 2. The sealing gasket 201 is in contact with the inner wall of the fermenter 1.

[0034] When the sealing cap 101 is installed on the upper end of the fermentation tank 1 and the fixing bolts 102 are tightened, the sealing ring 2 and the sealing gasket 201 move downward with the sealing cap 101. The sealing gasket 201 fits tightly against the inner wall of the fermentation tank 1, filling the tiny gap between the sealing cap 101 and the fermentation tank 1, enhancing the sealing performance of the fermentation tank 1, providing a stable environment for straw fermentation, and preventing external bacteria, dust and other pollutants from entering the fermentation tank 1, avoiding contamination of the agents, and ensuring the normal progress of the fermentation process.

[0035] Example 3:

[0036] Reference Figure 3 A whole-plant soybean straw pretreatment device is basically the same as that in Example 1. Furthermore, the bottom inner wall of the fermentation tank 1 is conical, and the bottom of the fermentation tank 1 is fixedly connected to a drain pipe 103, and a valve switch is provided on the drain pipe 103.

[0037] After fermentation is complete, open the valve on the drain pipe 103 to drain all the auxiliary fermentation agents and solutions produced during fermentation in the fermentation tank 1. During the draining process, because the inner wall of the bottom of the fermentation tank 1 is conical, the auxiliary fermentation agents and solutions produced during fermentation can be drained quickly and easily under the action of gravity, making it convenient to remove the fermented straw later. After the draining is complete, loosen the fixing bolts 102 of the sealing cover 101, remove the sealing cover 101, and then take out the fermented straw from the fermentation tank 1.

[0038] 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 whole-plant soybean straw pretreatment device, comprising a fermentation tank (1) with an open top, characterized in that, Also includes: The sealing cap (101) is detachably attached to the top of the fermenter (1); A pressure plate (3) with a leakage hole is slidably connected in the fermenter (1); The feed cylinder (302) located in the fermenter (1) is fixedly connected to the sealing cover (101). The pressure plate (3) is sleeved on the conveying cylinder (302). The lower end side wall of the conveying cylinder (302) is provided with a feed port (305) and the upper end side wall is provided with a discharge port (306). A rotating shaft (303) is rotatably connected inside the conveying cylinder (302), and a spiral blade (304) is fixedly installed on the rotating shaft (303).

2. The whole-plant soybean straw pretreatment device according to claim 1, characterized in that, An electric telescopic rod (301) is fixedly installed on the sealing cover (101), and the pressure plate (3) is fixedly connected to the telescopic end of the electric telescopic rod (301).

3. The whole-plant soybean straw pretreatment device according to claim 1, characterized in that, A motor (307) is fixedly installed on the sealing cover (101), and the rotating shaft (303) is fixedly connected to the output end of the motor (307).

4. The whole-plant soybean straw pretreatment device according to claim 1, characterized in that, The bottom inner wall of the fermentation tank (1) is conical, and the bottom of the fermentation tank (1) is fixedly connected to a drain pipe (103), which is equipped with a valve switch.

5. The whole-plant soybean straw pretreatment device according to claim 1, characterized in that, It also includes fixing bolts (102), and the sealing cover (101) is detachably connected to the fermenter (1) by fixing bolts (102).

6. The whole-plant soybean straw pretreatment device according to claim 5, characterized in that, A sealing ring (2) is fixedly connected to the sealing cover (101), and 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 fermenter (1).