Fermentation device for processing douchi

Abstract

This utility model discloses a fermentation device for processing fermented black beans, including a frame, a fermentation tank, and a drive unit. The fermentation tank is equipped with a sieve plate, which axially divides the internal space of the fermentation tank into a fermentation chamber and a drainage chamber. A material inlet communicating with the fermentation chamber is located at the first end of the fermentation tank, and a drain outlet communicating with the drainage chamber is located at the second end of the fermentation tank. Connecting sleeves are fixedly installed on both sides of the fermentation tank, and the connecting sleeves are arranged radially along the fermentation tank. The drive unit includes a driving shaft, a driven shaft, and a motor. The driving shaft and the driven shaft are coaxially arranged and rotatably mounted on the frame. The driving shaft and the driven shaft are fixedly connected to the connecting sleeves on both sides of the fermentation tank, and the motor is drively connected to the driving shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of fermented soybean processing equipment, and in particular to a fermentation device for fermented soybean processing. Background Technology

[0002] Doubanjiang (fermented black soybeans), a traditional fermented soybean product with unique flavor and nutritional value, occupies an important position in the food market. Its processing involves several key steps, generally including raw material selection, cleaning, soaking, steaming, koji making, mold removal, draining, canning for fermentation, and post-fermentation. Among these, koji making is the crucial step in providing the necessary microorganisms for subsequent fermentation. After koji making, a large amount of enzymes adhere to the surface of the doubanjiang. If these enzymes are not treated, they can over-catalyze certain biochemical reactions during fermentation, affecting the final flavor and quality of the doubanjiang. Therefore, a mold removal process is necessary to remove excess enzymes, spores, and mycelia from the surface of the soybeans. After mold removal, the surface of the doubanjiang retains a significant amount of moisture. If the moisture content is too high during canning for fermentation, it will dilute the concentration of the culture medium in the fermentation tank, hindering microbial growth and reproduction. It may also reduce the oxygen content in the fermentation tank, affecting the fermentation of aerobic microorganisms and thus impacting the fermentation effect and the quality of the doubanjiang. Furthermore, excessive moisture can also breed other bacteria, causing the doubanjiang to spoil. Therefore, the draining process is essential. Its purpose is to remove excess water from the surface of the fermented black beans, so that the fermented black beans reach the appropriate moisture content, creating favorable conditions for canning and fermentation, ensuring the smooth progress of the fermentation process and the stability of the quality of the fermented black bean products.

[0003] However, in actual production, the draining and fermentation processes are usually carried out independently on different equipment. After washing away the mold, the fermented black beans need to be transferred from the washing equipment to the draining equipment, and then transferred to the fermentation equipment for canning and fermentation. This production method of transferring raw materials between different devices has many inconveniences: on the one hand, it increases the intensity of manual labor, and the fermented black beans are easily contaminated during the transfer process, affecting product quality; on the other hand, frequent equipment changes and raw material transfers consume time, disrupt the continuity of the production process, and lead to low production efficiency. Utility Model Content

[0004] In view of this, this utility model proposes a fermentation device for fermented black soybean processing, which aims to solve the problems of contamination risk and reduced production efficiency caused by the need to transfer drained raw materials to fermentation tanks in the existing fermentation process of fermented black soybean.

[0005] The solution provided by this utility model includes:

[0006] A fermentation apparatus for processing fermented black soybeans, comprising:

[0007] The frame, fermenter, and drive unit;

[0008] The fermenter is equipped with a sieve plate, which divides the internal space of the fermenter into a fermentation chamber and a drainage chamber in the axial direction; the first end of the fermenter is provided with a material inlet that communicates with the fermentation chamber, and the second end of the fermenter is provided with a drain outlet that communicates with the drainage chamber; connecting sleeves are fixedly installed on both sides of the outside of the fermenter, and the connecting sleeves are arranged radially along the fermenter.

[0009] The drive unit includes a driving shaft, a driven shaft, and a motor. The driving shaft and the driven shaft are coaxially arranged and rotatably mounted on the frame. The driving shaft and the driven shaft are respectively fixedly connected to the connecting sleeves on both sides of the fermenter. The motor is drivenly connected to the driving shaft.

[0010] As a further optional solution, an adjustment mechanism is also included, which includes an adjustment rod, one end of which is fixedly connected to the sieve plate and the other end is connected to a hand crank; the adjustment rod is divided into a threaded section and a smooth shaft section along its axial direction.

[0011] The fermenter is provided with a first positioning sleeve at its second end. The first positioning sleeve is coaxially arranged with the fermenter. The optical axis section is sealed and slidably sleeved on the first positioning sleeve. The drainage cavity is provided with a support frame. The support frame is provided with a second positioning sleeve coaxially arranged with the first positioning sleeve. The second positioning sleeve is provided with an internal thread. The threaded section is threadedly connected to the second positioning sleeve.

[0012] The axial position of the sieve plate inside the fermenter is adjusted by rotating the adjusting rod.

[0013] As a further optional solution, the inner side of the first positioning sleeve is provided with a rubber sleeve, which is slidably sleeved with the optical axis segment to achieve a sealed sliding sleeve between the first positioning sleeve and the optical axis segment.

[0014] As a further optional solution, the sieve plate is a stainless steel circular plate with multiple water filtering holes.

[0015] As a further optional solution, the sieve plate is coaxially arranged with the fermenter, and there is a gap of 1-3mm between the outer edge of the sieve plate and the inner wall of the fermenter.

[0016] As a further optional feature, the fermenter is equipped with a transparent observation window.

[0017] As a further optional solution, the first end of the fermenter is provided with an end cap for sealing the material inlet. The end cap covers the end face of the material inlet, and the material inlet and the end cap are locked together by an annular clamp.

[0018] As a further optional solution, a rubber gasket is provided between the end cap and the end face of the feed port.

[0019] Compared with the prior art, the fermentation device for processing fermented black beans in this application has at least the following advantages:

[0020] This fermentation device for processing fermented black beans divides the internal space of the fermentation tank into a fermentation chamber and a drainage chamber by installing a sieve plate inside the fermentation tank. A drive unit allows the vertical positions of the fermentation chamber and the drainage chamber to be interchanged, enabling the drainage and fermentation processes to be completed within the same device. Compared to existing technologies where drainage and fermentation are performed on different equipment and require frequent transfer of raw materials, this device avoids the transfer of raw materials between different devices, reduces the risk of contamination, and improves production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a fermentation device for processing fermented black beans according to an embodiment of this utility model;

[0022] Figure 2 This is an exploded structural diagram of a fermentation device for processing fermented soybeans according to an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the fermenter in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the adjusting mechanism and the sieve plate in an embodiment of this utility model;

[0025] Figure 5 This is an exploded view of the feed inlet and end cap in an embodiment of this utility model;

[0026] In the diagram: 1. Frame;

[0027] 2. Fermentation tank; 2a. First end; 2b. Second end; 21. Fermentation chamber; 22. Drainage chamber; 23. Feed inlet; 24. Drain outlet; 25. First positioning sleeve; 26. Support frame; 261. Second positioning sleeve; 27. End cap; 271. Rubber gasket; 28. Connecting sleeve; 29. ​​Transparent observation window;

[0028] 3. Drive unit; 31. Driving shaft; 32. Driven shaft; 33. Motor;

[0029] 4. Sieve plate; 41. Filter holes;

[0030] 5. Adjustment mechanism; 51. Adjustment rod; 511. Threaded section; 512. Optical shaft section; 52. Hand crank handle;

[0031] 6. Circular hoop. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] refer to Figures 1 to 5This utility model discloses a fermentation device for processing fermented black beans, including a frame 1, a fermentation tank 2, and a drive unit 3. The fermentation tank 2 is provided with a sieve plate 4, which divides the internal space of the fermentation tank 2 axially into a fermentation chamber 21 and a drainage chamber 22. The first end 2a of the fermentation tank 2 is provided with a material inlet 23 communicating with the fermentation chamber 21, and the second end 2b of the fermentation tank 2 is provided with a drain outlet 24 communicating with the drainage chamber 22. Connecting sleeves 28 are fixedly provided on both sides of the fermentation tank 2, and the connecting sleeves 28 are arranged radially along the fermentation tank 2. The drive unit 3 includes a driving shaft 31, a driven shaft 32, and a motor 33. The driving shaft 31 and the driven shaft 32 are coaxially arranged and rotatably mounted on the frame 1. The driving shaft 31 and the driven shaft 32 are fixedly connected to the connecting sleeves 28 on both sides of the fermentation tank 2, and the motor 33 is drivenly connected to the driving shaft 31.

[0037] Specifically, when the motor 33 drives the active rotating shaft 31 to rotate, it can drive the fermentation tank 2 to rotate, so that the upper and lower positions of the fermentation chamber 21 and the draining chamber 22 are interchanged; the raw materials (mainly bean raw materials) are placed in the fermentation chamber 21;

[0038] In the draining process, the fermentation chamber 21 is placed above and the draining chamber 22 is placed below. Water passes through the sieve plate 4 and enters the draining chamber 22 under the action of gravity. The water in the draining chamber 22 can be discharged through the drain outlet 24, which effectively avoids the adverse effects of water residue on the subsequent fermentation process.

[0039] During the fermentation process, auxiliary materials (such as salt) are added to the fermentation chamber 21 through the feed inlet 23. The fermentation tank 2 is rotated by the drive unit 3, causing the raw materials and auxiliary materials to tumble and mix within the fermentation chamber 21. This allows the auxiliary materials to be more evenly distributed in the raw materials, providing a more stable and suitable environment for microbial fermentation. Microorganisms can come into more thorough contact with the raw materials and auxiliary materials, resulting in a more complete fermentation reaction and significantly improving the fermentation quality and flavor of the fermented soybeans. Compared to the existing technology that uses a stirring mechanism for mixing, this method reduces damage to the soybean raw materials. During fermentation, both the drain outlet 24 and the feed inlet 23 are closed. After fermentation is complete, the fermentation chamber 21 is placed at the bottom, the drain chamber 22 at the top, and the feed inlet 23 of the fermentation chamber 21 is facing downwards. The feed inlet 23 is then opened to release the raw materials.

[0040] In some embodiments, such as Figure 3 and Figure 4As shown, it also includes an adjustment mechanism 5, which includes an adjustment rod 51. One end of the adjustment rod 51 is fixedly connected to the sieve plate 4, and the other end is connected to a hand crank 52. The adjustment rod 51 is divided into a threaded section 511 and a smooth section 512 along its axial direction. The second end 2b of the fermentation tank 2 is provided with a first positioning sleeve 25, which is coaxially arranged with the fermentation tank 2. The smooth section 512 is sealed and slidably sleeved on the first positioning sleeve 25. The drainage cavity 22 is provided with a support frame 26, and the support frame 26 is provided with a second positioning sleeve 261, which is coaxially arranged with the first positioning sleeve 25. The second positioning sleeve 261 is provided with an internal thread, and the threaded section 511 is threadedly connected to the second positioning sleeve 261. The axial position of the sieve plate 4 in the fermentation tank 2 is adjusted by rotating the adjustment rod 51.

[0041] In this embodiment, the user can crank the hand crank 52 to drive the adjusting rod 51 to rotate. Since the threaded section 511 is threadedly engaged with the second positioning sleeve 261, when the adjusting rod 51 is rotated, the adjusting rod 51 will drive the sieve plate 4 to move axially, which will cause the sieve plate 4 to squeeze the raw material in the fermentation chamber 21. That is, by pressurizing the raw material, the water drainage speed is increased, and the efficiency of the drainage process is improved.

[0042] When the adjusting rod 51 moves axially, the optical axis segment 512 of the adjusting rod 51 is sealed and slidably connected with the first positioning sleeve 25. In this embodiment, the inner side of the first positioning sleeve 25 is provided with a rubber sleeve (not shown), and the rubber sleeve is slidably sleeved with the optical axis segment 512 to achieve a sealed sliding sleeve connection between the first positioning sleeve 25 and the optical axis segment 512.

[0043] Among them, such as Figure 1 As shown, the fermentation tank 2 is provided with a transparent observation window 29. In this embodiment, when the user adjusts the axial position of the sieve plate 4 to squeeze the raw material, he / she can judge whether the position of the sieve plate 4 is properly adjusted by feeling the pressure of rotating the adjusting rod 51 or observing the state of the raw material through the transparent observation window 29.

[0044] Specifically, the above scheme is as follows: Figure 4 As shown, the sieve plate 4 is a stainless steel circular plate with multiple filter holes 41. Naturally, the diameter of the filter holes 41 is smaller than the particle size of the raw material. Furthermore, the sieve plate 4 is coaxially arranged with the fermentation tank 2, and there is a 1-3mm gap between the outer edge of the sieve plate 4 and the inner wall of the fermentation tank 2. This ensures that the sieve plate 4 will not interfere with the inner wall of the fermentation tank 2 during axial movement, and that the raw material cannot pass through the gap between the sieve plate 4 and the inner wall of the fermentation tank 2.

[0045] In some embodiments, such as Figure 3 and Figure 5 As shown, the first end 2a of the fermentation tank 2 is provided with an end cap 27 for sealing the feed inlet 23. The end cap 27 covers the end face of the feed inlet 23, and the feed inlet 23 and the end cap 27 are locked together by an annular clamp 6. In this way, the annular clamp 6 realizes the detachable connection between the end cap 27 and the feed inlet 23; it should be noted that the annular clamp 6 can refer to the prior art.

[0046] In addition, a rubber gasket 271 is provided between the end face of the end cap 27 and the end face of the feed port 23; thus, a sealed connection is ensured between the end cap 27 and the feed port 23.

[0047] In summary, this application provides a fermentation device for processing fermented black beans. This device divides the internal space of the fermentation tank 2 into a fermentation chamber 21 and a draining chamber 22 by installing a sieve plate 4 inside the fermentation tank 2. A drive unit 3 is also provided to allow the vertical positions of the fermentation chamber 21 and the draining chamber 22 to be interchanged, enabling the draining and fermentation processes to be completed within the same device. Compared to existing technologies where draining and fermentation are performed on different equipment and require frequent transfer of raw materials, this device avoids the transfer of raw materials between different devices, reduces the risk of contamination, and improves production efficiency.

[0048] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A fermentation device for processing fermented black soybeans, characterized in that, include: The frame, fermenter, and drive unit; The fermenter is equipped with a sieve plate, which divides the internal space of the fermenter into a fermentation chamber and a drainage chamber in the axial direction; the first end of the fermenter is provided with a material inlet that communicates with the fermentation chamber, and the second end of the fermenter is provided with a drain outlet that communicates with the drainage chamber; connecting sleeves are fixedly installed on both sides of the outside of the fermenter, and the connecting sleeves are arranged radially along the fermenter. The drive unit includes a driving shaft, a driven shaft, and a motor. The driving shaft and the driven shaft are coaxially arranged and rotatably mounted on the frame. The driving shaft and the driven shaft are respectively fixedly connected to the connecting sleeves on both sides of the fermenter. The motor is drivenly connected to the driving shaft.

2. The fermentation apparatus for processing fermented black soybeans according to claim 1, characterized in that: It also includes an adjustment mechanism, which includes an adjustment rod. One end of the adjustment rod is fixedly connected to the sieve plate, and the other end is connected to a hand crank. The adjustment rod is divided into a threaded section and a smooth shaft section along its axial direction. The fermenter is provided with a first positioning sleeve at its second end. The first positioning sleeve is coaxially arranged with the fermenter. The optical axis section is sealed and slidably sleeved on the first positioning sleeve. The drainage cavity is provided with a support frame. The support frame is provided with a second positioning sleeve coaxially arranged with the first positioning sleeve. The second positioning sleeve is provided with an internal thread. The threaded section is threadedly connected to the second positioning sleeve. The axial position of the sieve plate inside the fermenter is adjusted by rotating the adjusting rod.

3. The fermentation apparatus for processing fermented black soybeans according to claim 2, characterized in that: The inner side of the first positioning sleeve is provided with a rubber sleeve, which is slidably sleeved with the optical axis segment to achieve a sealed sliding sleeve between the first positioning sleeve and the optical axis segment.

4. The fermentation apparatus for processing fermented black soybeans according to claim 2, characterized in that: The sieve plate is a stainless steel circular plate with multiple water filtering holes.

5. The fermentation apparatus for processing fermented black soybeans according to claim 4, characterized in that: The sieve plate is coaxially arranged with the fermenter, and there is a gap of 1-3mm between the outer edge of the sieve plate and the inner wall of the fermenter.

6. The fermentation apparatus for processing fermented black soybeans according to claim 2, characterized in that: The fermenter is equipped with a transparent observation window.

7. The fermentation apparatus for processing fermented black soybeans according to claim 2, characterized in that: The fermenter is provided with an end cap at the first end for sealing the material inlet. The end cap covers the end face of the material inlet, and the material inlet and the end cap are locked together by an annular clamp.

8. The fermentation apparatus for processing fermented black soybeans according to claim 7, characterized in that: A rubber gasket is provided between the end cap and the end face of the feed inlet.

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