Movable pit mud fermentation device

Abstract

The utility model relates to the field of white spirit brewing, in particular to a movable pit mud fermentation device. The movable pit mud fermentation device comprises a movable pit mud fermentation tank frame body, the movable pit mud fermentation tank frame body comprises a tank frame and a bottom plate; wherein the bottom plate is fixedly mounted in the tank frame, and a microorganism migration hole is formed in the bottom plate. According to the movable pit mud fermentation device, pit mud is not prone to entering fermented grains, operation is easy, recycling can be achieved, and the fermentation effect is obvious.

Description

Technical Field

[0001] This utility model relates to the field of liquor brewing, specifically to a mobile cellar mud fermentation device. Background Technology

[0002] In the brewing process of strong-aroma baijiu, fermentation with fermented mash is an important supplementary technology to enhance the formation efficiency of flavor compounds (such as ethyl hexanoate). Production practice shows a significant positive correlation between the contact area between the fermentation pit mud and the mash and the synthesis of esters such as ethyl hexanoate; increasing the contact area can simultaneously improve the aroma intensity and the content of major acid and ester components in the baijiu. However, existing fermentation processes with fermented mash face multiple technical bottlenecks in industrial applications, specifically as follows:

[0003] Method 1: Encapsulate the pit mud inside bamboo tubes and bury them in the middle layer of the fermentation pit. Although this method achieves directional contact of the pit mud through the bamboo tube structure, it suffers from problems such as low efficiency in hoisting the bamboo tubes, cumbersome procedures, and high on-site management costs. It is only suitable for laboratory verification and cannot meet the needs of large-scale production.

[0004] Method 2: Place 1-2 layers of pit mud consisting of horizontally arranged circular mud balls on the top and middle of the fermented mash. This process requires manual stacking of mud balls layer by layer, which is highly complex. Furthermore, uneven spacing between the mud balls can lead to fluctuations in contact area, resulting in unstable fermentation efficiency and making it difficult to achieve industrialized circular production.

[0005] Method 3: Using polypropylene woven bags to encapsulate the pit mud enriched with caproic acid bacteria, supplemented with a bamboo isolation layer for fermentation. Although this can enhance the activity of the microbial community, the woven bags are disposable consumables with low reusability. Long-term use can easily lead to damage, causing pit mud leakage and contamination of the mash. In addition, there is a risk of microplastic residue, which limits its large-scale application.

[0006] Method 4: Cover the surface of the double-layer bottom mash at the bottom of the fermentation pit with 5cm of high-quality pit mud, and distill after 48 days of fermentation. This process has significant drawbacks: the mud is severely adhered to the mash when it comes out of the pit, the high acidity of the bottom mash accelerates the aging of the pit mud, and the residual pit mud easily introduces a muddy taste during the distillation process, ultimately leading to the deterioration of the liquor quality and a surge in the maintenance cost of the fermentation pit.

[0007] Method 5: Use a mud-filled frame with a water collection trough and a flow guide hole to fix the cellar mud. Although the contact surface is optimized by the flow guide structure, the frame design has the risk of cellar mud leakage, resulting in a noticeable muddy taste in the liquor; at the same time, the frame is difficult to disassemble and clean, has poor reusability, limited improvement in fermentation effect, and has a high equipment wear rate.

[0008] In summary, existing technologies generally suffer from the following common defects:

[0009] Insufficient technological feasibility: High reliance on manual labor and complex procedures make it difficult to adapt to continuous industrial production; Poor wine quality stability: Leakage of cellar mud causes off-flavor contamination, and insufficient fermentation uniformity leads to fluctuations in the generation of flavor substances; Low resource utilization: High proportion of disposable consumables, insufficient equipment recycling rate, and rising production costs; Cellar maintenance risks: High acid environment and mechanical damage accelerate cellar mud aging and shorten the functional life of the cellar.

[0010] The aforementioned problems severely restrict the large-scale application of the mud-blending fermentation technology in the production of strong-aroma baijiu. There is an urgent need to develop a new mud-blending fermentation process that combines high-efficiency contact, controllable fermentation, low pollution, and suitability for industrial production, so as to break through the traditional technical bottlenecks and achieve a synergistic improvement in the flavor and quality of the liquor and production efficiency.

[0011] In view of the above, this utility model is hereby proposed. Utility Model Content

[0012] The present invention provides a mobile fermentation device for pit mud, which includes a mobile fermentation tank frame body, a microbial migration hole provided on the bottom plate, making it difficult for pit mud to enter the mash, simple to operate, reusable, and with obvious fermentation effect.

[0013] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0014] A mobile fermentation device for pit mud includes: a mobile fermentation tank frame body; the mobile fermentation tank frame body includes: a tank frame and a bottom plate;

[0015] The base plate is fixedly installed inside the groove frame, and the base plate is provided with microbial migration holes.

[0016] The mobile fermentation device described above prevents the fermentation mud from easily entering the mash, is easy to operate, can be recycled, and has a significant fermentation effect.

[0017] Preferably, the microbial migration pores include: circular microbial migration pores and / or strip-shaped microbial migration pores.

[0018] Preferably, the diameter of the circular microbial migration pore is 4-6 mm.

[0019] Preferably, the length of the strip-shaped microbial migration pore is 20-40 mm and the width is 2-3 mm.

[0020] Preferably, the upper surface of the base plate is 40-60 mm away from the upper edge of the groove frame, and the lower surface of the base plate is 5-10 mm away from the lower edge of the groove frame.

[0021] Preferably, the cellar mud is placed inside the movable cellar mud fermentation tank frame; the height of the cellar mud is 3-5 mm higher than the upper edge of the tank frame.

[0022] Preferably, the aspect ratio of the mobile fermentation tank frame is 3-4:2-3.

[0023] Preferably, the long side of the mobile fermentation tank frame body is 450-600mm and the short side is 300-400mm.

[0024] Preferably, the mobile fermentation device further includes a handle on the side of the trough frame.

[0025] Preferably, the handle portion includes an embedded U-shaped handle.

[0026] Preferably, the mobile fermentation tank frame is placed inside the fermentation pit, and the distance between the mobile fermentation tank frame and the pit wall is maintained at more than 200mm.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] (1) The mobile cellar mud fermentation device provided by this utility model uses a small-sized mobile cellar mud trough to load cellar mud, which solves the problem of difficult operation of traditional mud-clamping fermentation.

[0029] (2) The mobile cellar mud fermentation device provided by this utility model uses mixed cellar mud curing liquid to cure the mobile cellar mud (supplementing nutrients and compound cellar mud bacteria), and after the mobile cellar mud is removed from the cellar, the mobile cellar mud troughs are stacked and sealed with plastic film, which alleviates the aging of the mobile cellar mud during the production process and solves the problem of recycling the mobile cellar mud.

[0030] (3) The mobile fermentation device for cellar mud provided by this utility model uses a standard square trough to load cellar mud, which facilitates the transportation of mobile cellar mud. Moreover, the mobile cellar mud will not be damaged during the transportation process, thus solving the problem that cellar mud is easy to enter the mash.

[0031] (4) The mobile pit mud fermentation device provided by this utility model adds an in-pit cultivation link on the basis of traditional artificial pit mud. Its quality is better than that of traditional artificial old pit mud. The pit mud on the mobile pit mud trough frame is in contact with the grain lees and mash. The microorganisms in the pit mud are transferred to the mash through the microbial migration holes below. Since there is a mobile pit mud trough frame between every two grain lees, it is equivalent to the pit mud microorganisms entering the mash from the top and bottom of each grain lees in the middle. Moreover, the number of mobile pit mud trough frames can be flexibly set (added or reduced) as needed, which solves the problem of the insignificant effect of mud-filled fermentation. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A schematic diagram of a circular migration hole moving fermentation tank frame provided in an embodiment of this utility model;

[0034] Figure 2 A schematic diagram of the frame for moving the fermentation tank with strip-shaped migration holes provided in this embodiment of the utility model;

[0035] Figure 3 This is a schematic cross-sectional view of the mobile fermentation tank frame provided in an embodiment of the present utility model;

[0036] Figure 4 This is a schematic diagram showing the arrangement of the mobile fermentation tank frame in the fermentation pit provided in this embodiment of the utility model.

[0037] Figure 5 A schematic diagram of the external stacking of the mobile fermentation tank frame provided in this embodiment of the utility model;

[0038] Figure 6 A schematic diagram of the mobile fermentation process for mud in a specific embodiment of this utility model.

[0039] Figure label:

[0040] 100-Mobile fermentation tank frame body, 110-Vat frame, 120-Bottom plate, 130-Microbial migration hole, 140-Handle, 200-Fermentation tank, 300-Fermentation pit. Detailed Implementation

[0041] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] One aspect of this utility model relates to a mobile fermentation device for pit mud, such as... Figures 1-5 As shown, it includes: a movable fermentation tank frame body 100; the movable fermentation tank frame body 100 includes: a tank frame 110 and a bottom plate 120;

[0045] The base plate 120 is fixedly installed inside the slot frame 110, and the base plate 120 is provided with microbial migration holes 130.

[0046] This utility model is the result of the inventor's years of dedicated research on mud-fermentation, which has led to the development of a mobile mud fermentation method and device. It overcomes the inherent defects of traditional mud fermentation: firstly, the mud can easily enter the mash; secondly, it is difficult to operate; thirdly, it is difficult to recycle; and fourthly, the effect is not obvious.

[0047] In the strong-aroma baijiu industry, there's a saying: "A thousand-year-old cellar, ten-thousand-year-old lees." Strong-aroma baijiu is produced using a "cellar-nurturing-lees-and-lees-nurturing-cellar" approach. Through the mutual influence and interaction between the cellar and the lees, the production and quality of the 300-cellar pit are continuously improved. Because the cellar mud 200 is prone to aging and failure during production, this invention addresses this by using a mixed cellar mud conditioning solution to condition the mobile cellar mud (supplementing nutrients and compound cellar mud microorganisms). Furthermore, after removal from the cellar, the mobile cellar mud troughs are stacked and sealed with plastic film. This mitigates the aging of the mobile cellar mud during production and solves the problem of recycling it. This avoids aging of the mobile cellar mud, solves the problem of its reusability (recycling), and achieves the cyclical improvement effect of "nurturing the lees with the cellar, and nurturing the cellar with the lees."

[0048] This invention utilizes mobile pit mud, which adds an in-pit cultivation stage to the traditional artificial pit mud, resulting in higher quality than traditional artificial pit mud. The pit mud 200 on the mobile pit mud trough frame contacts the grain mash, while microorganisms from the pit mud 200 are transferred into the mash through microbial migration holes 130. Since a mobile pit mud trough frame is installed between every two batches of grain mash, it's equivalent to having pit mud microorganisms entering the mash from both above and below each batch. Furthermore, the number of mobile pit mud trough frames can be flexibly set as needed (added or reduced), and even if the frames are damaged during use, they can be replaced promptly. This overcomes the limitations of previous mud-blending fermentation equipment, which was bulky, difficult to adjust, required overhead cranes for installation, or required considerable physical labor from operators, thus solving the problem of ineffective mud-blending fermentation.

[0049] The mobile fermentation device has microbial migration holes 130 on the bottom plate 120, which facilitates the migration of beneficial microorganisms in the mobile fermentation mud into the grain dregs from both the top and bottom directions. This changes the flavor composition and microbial ecological environment of the grain dregs, not only improving the yield and quality of the grain dregs in this cycle, but also improving the overall microbial composition and flavor environment of the grain dregs in the fermentation pit 300.

[0050] During the fermentation of grain mash, the pit mud 200 contacts the grain mash through its upper surface, and beneficial microorganisms from the pit mud 200 are transferred to the grain mash through the microbial migration holes 130. The beneficial microorganisms in the pit mud 200 metabolize and produce abundant aroma and flavor substances, effectively improving the yield and quality of the grain mash and increasing the beneficial microbial community in the grain mash. Even in the subsequent distillation process, a large portion of the beneficial microorganisms that migrated from the pit mud 200 to the grain mash still survive and enter the next round of fermentation. The distillation process plays a revitalizing role, thereby improving the microbial ecological structure system in the grain mash. In this way, the abundance of flavor substances in the grain mash is also improved. Thus, the overall yield and quality of the pit 300 is continuously improved by using the mobile pit mud fermentation method and device. Through several rounds of mobile fermentation, the microbial composition and flavor compounds of the grain mash in fermentation pit 300, which had relatively poor wine quality, are improved. Once a certain level is reached, the mobile fermentation device can be withdrawn from fermentation pit 300. Because the overall environment of the mash in fermentation pit 300 has been improved, the original quality and yield of fermentation pit 300 can still be effectively guaranteed. This method forms a positive cycle of "using the pit to nourish the mash, and using the mash to nourish the pit," continuously improving the overall quality and yield of fermentation pit 300 in the repeated brewing production cycle.

[0051] The mobile fermentation device is made of wood materials such as oak and locust wood, which are odorless, resistant to decay, hard, wear-resistant, and have strong physical and mechanical properties, making it durable. It does not use stainless steel or other metal materials for the mobile fermentation trough frame. Firstly, wood has low heat transfer efficiency, resulting in slow temperature changes inside and after the fermentation process, minimizing the impact on the microbial ecosystem within the fermentation mud 200. Secondly, the high acidity of the grain lees prevents the wood from corroding, eliminating the food safety hazard of heavy metal migration into the lees. Thirdly, this type of wood is wear-resistant, durable, and recyclable. Furthermore, the wood material helps to delay and weaken the environmental impact of the grain lees being removed from and added to the fermentation trough, reducing factors that contribute to the aging of the fermentation mud 200. This invention does not use bamboo, maintaining the stability of the trough frame and preventing the fermentation mud 200 from leaking into the lees. It also avoids using woven straps, overcoming the difficulties associated with using woven straps for fermentation.

[0052] This invention breaks through the limitations of traditional mud-blending fermentation. Traditional mud-blending fermentation is only used to improve the output quality of the 300-ton fermentation pit, and the mud is often used in the double-wheel bottom trough. The idea of ​​this invention is to improve the micro-ecological environment of the fermentation pit 300. By circulating the fermentation pit 300, the quality of the grain and fermentation mash is improved. Therefore, the mud is only placed in the grain and fermentation pit. This method not only solves the problem of easy aging of the moving pit mud, but also allows for recycling. Furthermore, by maintaining the moving pit mud, replenishing the nutrients and ecological bacteria needed by the pit mud 200, the effectiveness of the moving pit mud is maintained and improved, while also effectively improving the micro-ecological environment of the grain and fermentation mash, achieving the effect of "using the fermentation pit to nourish the pit, and using the pit to nourish the fermentation pit".

[0053] Furthermore, the microbial migration pore 130 includes: circular microbial migration pores and / or strip-shaped microbial migration pores.

[0054] Furthermore, the diameter of the circular microbial migration pore is 4–6 mm.

[0055] Furthermore, the length of the strip-shaped microbial migration pore is 20–40 mm, and the width is 2–3 mm.

[0056] The microbial migration holes 130 are staggered and cover the entire base plate 120 while ensuring that the base plate 120 has a certain strength.

[0057] Furthermore, the upper surface of the base plate 120 is 40-60 mm away from the upper edge of the slot frame 110, and the lower surface of the base plate 120 is 5-10 mm away from the lower edge of the slot frame 110.

[0058] Furthermore, the pit mud 200 is placed inside the movable pit mud fermentation tank frame 100; the height of the pit mud 200 is 3-5 mm higher than the upper edge of the tank frame 110.

[0059] Furthermore, the aspect ratio of the mobile fermentation tank frame 100 is 3-4:2-3. This utility model uses a standard square mobile fermentation tank frame 100 to load the fermentation tank mud 200, which facilitates the handling of the mobile fermentation tank mud and prevents damage to the mobile fermentation tank mud during transportation, thus solving the problem of the fermentation tank mud 200 easily entering the mash.

[0060] Furthermore, the long side of the mobile fermentation tank frame 100 has a length of 450-600 mm and the short side has a length of 300-400 mm.

[0061] This utility model uses a small-sized mobile mud trough frame to load 200 cubic meters of mud, which solves the problem of difficult traditional mud-filled fermentation operations and makes it easier for operators to lift and put mud into the pit.

[0062] Furthermore, the mobile fermentation device for pit mud also includes a handle 140 provided on the side of the trough frame 110.

[0063] The handle 140 can be located on the long side or the short side of the trough frame 110, and is usually arranged symmetrically. The handle 140 facilitates the movement of the mud fermentation device. In some preferred embodiments, the handle is located on the two short sides of the trough frame 110, arranged symmetrically.

[0064] Furthermore, the handle portion 140 includes, but is not limited to, an embedded U-shaped handle.

[0065] Furthermore, the movable fermentation tank frame 100 is placed inside the fermentation pit 300, such as... Figure 4 As shown, the distance between the mobile fermentation tank frame 100 and the cellar wall of the cellar 300 is maintained at more than 200mm to facilitate the operator's operation of stepping on the cellar.

[0066] The mobile fermentation tank frame 100 is placed inside the fermentation pit 300. Specifically, the mobile fermentation tank frame 100 is placed on top of the grain lees in the first, second, and third fermentation pits, ensuring that the mobile fermentation tank frame 100 is covered with grain lees both above and below. It cannot be placed in the double-wheel bottom trough, as the high acidity in the double-wheel bottom trough will cause the fermentation tank mud 200 inside the mobile fermentation tank frame 100 to age.

[0067] The mobile fermentation device for pit mud of this invention can be stacked outside the pit, such as... Figure 5 As shown, this facilitates the storage and transportation of the mobile fermentation device.

[0068] Another aspect of this utility model relates to a mobile fermentation method for pit mud, such as... Figure 6 As shown, it includes the following steps:

[0069] 1. Useful artificial aged pit mud is prepared using "Anti-degradation pit mud and its preparation method" (application number CN201010249483.0). The artificial aged pit mud is further aged in the pit using "An artificial aged pit mud production device and pit" (application number CN202323400387.3) to improve the quality level of the mobile pit mud. The moisture content of pit mud 200 is controlled at 35-45%, and the density of pit mud 200 is 1.35-1.45 tons / cubic meter.

[0070] 2. Fill the matured artificial pit mud into the main body 100 of the mobile pit mud fermentation tank frame, and tamp it down with your feet. The pit mud 200 is slightly higher than the upper edge of the tank frame 110, so that the yellow slurry water can flow down from the upper edge of the mobile pit mud fermentation tank frame during the grain fermentation process and not remain on the upper surface of the mobile pit mud.

[0071] 3. After the first batch of grain mash is added, neatly arrange the mobile fermentation tank frame 100 on top of the grain mash. The number of mobile fermentation tank frames 100 should be determined based on the quality of the mash in the fermentation pit 300, ensuring that the distance between each mobile fermentation tank frame 100 and the pit wall is at least 200mm. Repeat this process after adding the second and third batches of grain mash, ensuring that the mobile fermentation tank frame 100 is covered with grain mash both above and below it.

[0072] 4. After the mud is removed from the pit, the mobile pit mud fermentation tank frame 100 is stacked and covered with plastic film to prevent the mobile pit mud from being exposed to too much air, which would cause the mobile pit mud to age.

[0073] 5. Maintenance and replacement of cellar mud. Add 5% grade 3 liquor, 5% medium-temperature koji, and 5% grain paste to the mixed cellar mud maintenance solution, and add the remainder with old cellar mud solution diluted with cooled boiled water. Use grade 3 liquor, medium-temperature koji, and grain paste to replenish the moisture and nutrients in the cellar mud, and use the diluted old cellar mud solution to replenish beneficial compound old cellar mud bacteria.

[0074] 6. Withdrawal of the portable fermentation device. When the yield and quality of grain lees in the fermentation pit 300 continue to improve and reach a stable level, it is time for the portable fermentation device to be withdrawn in an orderly manner. The portable fermentation device can continue to be used in the next fermentation pit 300 with poor yield and quality, or it can be placed in the fermentation pit 300 and cultivated in the pit 300 using the "An Artificial Old Fermentation Device and Fermentation Pit" (application number CN202323400387.3) for later use.

[0075] Example 1

[0076] 1. Artificial aged pit mud meeting the requirements was prepared using "Anti-degradation pit mud and its preparation method" (application number CN201010249483.0). The artificial aged pit mud was further fermented and matured in the pit using "An artificial aged pit mud production device and pit" (application number CN202323400387.3). The tested pit mud had a moisture content of 41% and a density of 1.39 tons / cubic meter.

[0077] 2. Fill the matured artificial pit mud into a mobile pit mud fermentation tank with dimensions of 500mm*340mm (length*width), and tamp it down with your feet, with the pit mud in the center slightly higher than the edge.

[0078] 3. After the first batch of grain lees is added, nine mobile fermentation tank frames are neatly arranged and laid on top of the lees, with each frame at least 400mm away from the pit wall. After the second batch of grain lees is added, another layer of mobile fermentation tank frames is laid, following the same steps. After the third and fourth batches of grain lees are added, no more mobile fermentation tank frames are laid. A total of two layers of 18 mobile fermentation tank frames are used in this pit, increasing the depth by 3.06m. 2 Surface area of ​​pit mud.

[0079] 4. After 60 days of fermentation, remove the fermentation tank from the pit, stack the fermentation tank frames on the pit dry surface, and cover them with plastic film to prevent the fermentation tank mud from losing moisture and coming into contact with air.

[0080] 5. Prepare 50kg of mixed cellar mud conditioning solution. The mixed cellar mud conditioning solution contains 2.5kg of grade 3 liquor, 2.5kg of medium-temperature koji, and 2.5kg of grain paste. The remainder is supplemented with old cellar mud solution diluted with cold boiled water. The cellar mud in the mobile cellar mud fermentation tank frame is individually conditioning with the mixed cellar mud conditioning solution.

[0081] 6. Continue the brewing fermentation process for six rounds in succession following the steps above.

[0082] Table 1. Changes in Product Quality after Implementation of Mobile Fermentation Tank Frame Application

[0083]

[0084] Example 2

[0085] Based on the scheme in Example 1, the number of mobile mud fermentation tank frames was adjusted to 16 per layer, for a total of two layers. This resulted in a total of 32 mobile mud fermentation tank frames being laid inside the grain dregs of the pit, increasing the depth by 5.44m. 2 The surface area of ​​the pit mud should be such that the distance between the moving pit mud fermentation tank frame and the pit wall is slightly greater than 350mm.

[0086] Table 2. Changes in Product Quality after Implementation of Mobile Sludge Fermentation Tank Frame Application

[0087]

[0088] Example 3

[0089] Based on the scheme in Example 1, the number of mobile mud fermentation tank frames was adjusted to 25 per layer, for a total of two layers. This resulted in a total of 50 mobile mud fermentation tank frames being laid inside the grain dregs of the pit, increasing the depth by 8.5m. 2 The surface area of ​​the pit mud should be greater than 200mm, and the distance between the moving pit mud fermentation tank frame and the pit wall should be greater than 200mm.

[0090] Five rounds of brewing fermentation operations were carried out consecutively. In the sixth round, the mobile fermentation tank frame was removed from the fermentation pit.

[0091] Table 3. Changes in Product Quality after Implementation of Mobile Sludge Fermentation Tank Frame Application

[0092]

[0093]

[0094] Example 4

[0095] 1. Artificial aged pit mud meeting the requirements was prepared using the method of "Anti-degradation pit mud and its preparation method" (application number CN201010249483.0). The artificial aged pit mud was further fermented and matured in the pit using the device of "An artificial aged pit mud production device and pit" (application number CN202323400387.3). The tested pit mud had a moisture content of 40% and a density of 1.40 tons / cubic meter.

[0096] 2. Fill the fermented and matured artificial pit mud into a movable pit mud fermentation tank with dimensions of 600mm*400mm (length*width), and tamp it down with your feet, with the pit mud in the center slightly higher than the edge.

[0097] 3. After the first batch of grain lees is fed, nine mobile fermentation tank frames are neatly arranged and laid on top of the lees, with each frame at least 400mm away from the pit wall. The same steps are followed for the second and third batches of grain lees. No more mobile fermentation tank frames are laid after the fourth batch of grain lees. A total of three layers of 27 mobile fermentation tank frames are used in this pit, increasing the depth by 6.48m. 2 Surface area of ​​pit mud.

[0098] 4. After 60 days of fermentation, remove the fermentation tank from the pit. Stack the fermentation tank frames on the pit dry surface and cover them with plastic film to prevent the fermentation tank from coming into contact with air.

[0099] 5. Prepare 50kg of mixed cellar mud conditioning solution. The mixed cellar mud conditioning solution contains 2.5kg of grade 3 liquor, 2.5kg of medium-temperature koji, and 2.5kg of grain paste. The remainder is supplemented with old cellar mud solution diluted with cold boiled water. The cellar mud in the mobile cellar mud fermentation tank frame is individually conditioning with the mixed cellar mud conditioning solution.

[0100] 6. Continue the brewing fermentation process for six rounds in succession following the steps above.

[0101] Table 4. Changes in Product Quality After Implementation of Mobile Sludge Fermentation Tank Frame Application

[0102]

[0103] Example 5

[0104] Based on the scheme in Example 4, the number of mobile mud fermentation tank frames was adjusted to 16 per layer, for a total of three layers. This resulted in a total of 48 mobile mud fermentation tank frames being laid inside the grain dregs, increasing the depth by 11.52m. 2 The surface area of ​​the pit mud should be such that the distance between the moving pit mud fermentation tank frame and the pit wall is slightly greater than 200mm.

[0105] Four rounds of brewing fermentation operations were carried out consecutively. In the fifth round, the mobile fermentation tank frame was removed from the fermentation pit.

[0106] Table 5. Changes in Product Quality After Implementation of Mobile Sludge Fermentation Tank Frame Application

[0107]

[0108]

[0109] Although the present invention has been illustrated and described with specific embodiments, it should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it; those skilled in the art should understand that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein, without departing from the spirit and scope of the present invention; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention; therefore, this means that all such substitutions and modifications that fall within the scope of the present invention are included in the appended claims.

Claims

1. A mobile pit slurry fermentation apparatus, characterised in that, The utility model relates to a mobile pit mud fermentation tank frame body, including: The mobile pit mud fermentation tank frame body includes a tank frame and a bottom plate. The bottom plate is fixedly installed inside the tank frame, and a microorganism migration hole is arranged on the bottom plate. The microorganism migration hole includes a circular microorganism migration hole and / or a strip-shaped microorganism migration hole.

2. The mobile garaage mud fermentation apparatus of claim 1, wherein, The diameter of the circular microorganism migration hole is 4-6 mm.

3. The mobile garaage of claim 2, wherein, The length of the strip-shaped microorganism migration hole is 20-40 mm, and the width is 2-3 mm. The upper surface of the bottom plate is 40-60 mm away from the upper edge of the tank frame, and the lower surface of the bottom plate is 5-10 mm away from the lower edge of the tank frame.

4. The mobile garaage of claim 1, wherein The pit mud is placed inside the mobile pit mud fermentation tank frame body, and the height of the pit mud is 3-5 mm higher than the upper edge of the tank frame.

5. The mobile garaage of claim 1, wherein The length-width ratio of the mobile pit mud fermentation tank frame body is 3-4:2-3.

6. The mobile garaage of claim 1, wherein The length of the long side of the mobile pit mud fermentation tank frame body is 450-600 mm, and the length of the short side is 300-400 mm.

7. The mobile pit mud fermentation apparatus of claim 6, wherein, The mobile pit mud fermentation device further includes a handle part arranged on the side edge of the tank frame.

8. The mobile garaage of claim 1, wherein The handle part includes an embedded U-shaped handle.

9. The mobile garaage of claim 8, wherein, The mobile pit mud fermentation tank frame body is placed inside a pit pool, and the distance between the mobile pit mud fermentation tank frame body and the pit wall of the pit pool is kept above 200 mm.

10. The mobile garaage according to claim 1, wherein ​

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