Pit type white spirit fermentation tank using pit mud

Abstract

The utility model discloses a pit type liquor fermentation tank using pit mud, which comprises a foundation, a bowl-shaped fermentation tank is arranged on the foundation, and a sealing cover is mounted at the opening of the bowl-shaped fermentation tank; according to the utility model, the two filter cartridges are fixed on the bottom surface of the sealing cover and are respectively connected with the liquid pumping pipe with the filter head through the round holes in the bottoms of the two filter cartridges, so that the liquid pump on the surface of the liquid outlet pipe is started to work; yellow water in the initial stage of fermentation or crude wine filtered by the two filter cartridges is discharged through the liquid outlet pipe under the extraction action of the two liquid extraction pipes, so that the yellow water in the initial stage of fermentation or the crude wine is easy to quickly suck and discharge while the sealing of the fermentation tank is met, and the production and fermentation efficiency of white spirit is ensured to the maximum extent; the sealing cover is mounted at the tank opening of the bowl-shaped fermentation tank, and the mud sealing layer with the annular structure is wrapped on the periphery of the side surface of the sealing cover, so that the mud sealing layer maintains the sealing between the bowl-shaped fermentation tank and the sealing cover.

Description

Technical Field

[0001] This utility model relates to the field of liquor production technology, and in particular to a pit-type liquor fermentation tank using cellar mud. Background Technology

[0002] The fermentation process in the fermentation tanks is particularly important in the brewing of baijiu (Chinese liquor), as it directly affects the yield and quality of the liquor. Distilleries invest significant manpower in its maintenance to ensure absolute airtightness of the grain mash during fermentation. This guarantees anaerobic fermentation, preventing waste caused by yeast consuming large amounts of fermentable sugars under aerobic conditions. It also prevents harmful bacteria from invading the fermentation tanks, ensuring normal fermentation. Different baijiu aroma types have different requirements for the materials used in the fermentation tanks. For example, sauce-aroma baijiu uses stone fermentation tanks with stone walls and old cellar mud at the bottom, while strong-aroma baijiu uses mud tanks where the mud, after being infused with nutrients and microbial cultures, is adhered to the inner walls of the fermentation tank.

[0003] However, existing fermentation tanks suffer from poor sealing, accumulation of yellow liquid in the early stages of fermentation affecting fermentation, and incomplete discharge of crude liquor, which adversely affect the fermentation and production of baijiu.

[0004] To address this, a pit-type baijiu fermentation tank using cellar mud was proposed, which has the advantages of sealing and convenient extraction of yellow water or crude liquor in the early stage of fermentation, thereby solving the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pit-type fermentation tank for baijiu (Chinese liquor) using cellar mud.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a pit-type baijiu fermentation tank using cellar mud, including a foundation, a bowl-shaped fermentation tank on the foundation, and a sealing cover installed at the opening of the bowl-shaped fermentation tank. The side of the sealing cover is wrapped with a sealing mud layer, and the sealing mud layer is located at the connection between the bowl-shaped fermentation tank and the sealing cover. Two pre-embedded rods are embedded in the foundation corresponding to the sealing cover. The bottom surface of the sealing cover has a positioning groove for inserting into the two pre-embedded rods. Two liquid extraction pipes are installed at the bottom of the bowl-shaped fermentation tank, and the bottom of the two liquid extraction pipes penetrates the bowl-shaped fermentation tank and connects to a liquid outlet pipe. A liquid pump is installed on the surface of the liquid outlet pipe, and the liquid outlet pipe extends to the top of the foundation. Two filter cylinders are fixed at the bottom of the sealing cover, and the two filter cylinders are respectively covered around the two liquid extraction pipes. A filter head is installed at the top of the liquid extraction pipe, and the filter head extends to the inside of the filter cylinder. The inner wall of the bowl-shaped fermentation tank is coated with a cellar mud layer.

[0007] As a further description of the above technical solution: the bottom surface of the filter cylinder is in contact with the bottom of the bowl-shaped fermentation tank, and a round hole is opened on the bottom surface of the filter cylinder corresponding to the liquid extraction pipe.

[0008] As a further description of the above technical solution: the thickness of the kiln mud layer is 5-8 cm, and a brick isolation strip is built between the kiln mud layer and the foundation. The kiln mud layer contains nutrients and liquor fermentation bacteria.

[0009] As a further description of the above technical solution: the upper surface of the filter cylinder is connected to several extended filter cylinders, and the height of the several extended filter cylinders is lower than the height of the fermentation raw materials in the bowl-shaped fermentation tank.

[0010] As a further description of the above technical solution: a pressure sensor is installed on the top surface of the sealing cover, and the probe of the pressure sensor extends into the bowl-shaped fermentation tank. An exhaust port is provided at the edge of the top surface of the sealing cover, and a pressure relief valve is installed on the surface of the exhaust port.

[0011] As a further description of the above technical solution: the filter cylinder and several extended filter cylinders on its surface are all provided with annular filter screens, and the pore size of the annular filter screens is smaller than the particle size of the fermentation raw materials in the bowl-shaped fermentation tank.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, two filter cylinders are fixed to the bottom of the sealing cap, and each filter cylinder is connected to a liquid extraction pipe with a filter head through a round hole at its bottom. When the liquid pump on the surface of the liquid extraction pipe is started, the yellow water or crude liquor filtered by the two filter cylinders in the early stage of fermentation is discharged through the liquid extraction pipe under the suction action of the two liquid extraction pipes. This satisfies the sealing of the fermentation tank while facilitating the rapid suction and discharge of yellow water or the filtration and extraction of crude liquor in the early stage of fermentation, thus maximizing the efficiency of liquor production and fermentation. A sealing cap is installed at the mouth of the bowl-shaped fermentation tank, and a ring-shaped sealing mud layer is wrapped around the side of the sealing cap. The sealing mud layer maintains the seal between the bowl-shaped fermentation tank and the sealing cap, ensuring the absolute airtightness of the grain mash during the fermentation process. This ensures the anaerobic fermentation of the grain mash and prevents the waste caused by yeast consuming a large amount of fermentable sugar under aerobic conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the pit-type baijiu fermentation tank using cellar mud according to this utility model.

[0015] Figure 2 This is a bottom view of the sealing cap;

[0016] Figure 3 for Figure 1 Enlarged view of structure A.

[0017] Legend:

[0018] 1. Foundation; 2. Bowl-shaped fermentation tank; 3. Kiln mud layer; 4. Sealing cover; 5. Filter cartridge; 6. Pressure sensor; 7. Exhaust nozzle; 8. Pressure relief valve; 9. Liquid outlet pipe; 10. Liquid pump; 11. Liquid extraction pipe; 12. Filter head; 13. Round hole; 14. Extended filter cartridge; 15. Positioning groove; 16. Embedded rod; 17. Sealing mud layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] According to an embodiment of the present invention, a pit-type baijiu fermentation tank using cellar mud is provided.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3 As shown, the pit-type baijiu fermentation tank using cellar mud according to an embodiment of this utility model includes a foundation 1, a bowl-shaped fermentation tank 2 on the foundation 1, and a sealing cover 4 installed at the opening of the bowl-shaped fermentation tank 2. A sealing mud layer 17 is wrapped around the side of the sealing cover 4, and the sealing mud layer 17 is located at the connection between the bowl-shaped fermentation tank 2 and the sealing cover 4. Two pre-embedded rods 16 are embedded in the foundation 1 corresponding to the sealing cover 4. A positioning groove 15 is provided on the bottom surface of the sealing cover 4 to connect with the two pre-embedded rods 16. Two liquid extraction pipes 11 are installed at the bottom of the bowl-shaped fermentation tank 2, and the bottom of the two liquid extraction pipes 11 penetrates the bowl-shaped fermentation tank 2 and connects to an outlet pipe 9. A liquid pump 10 is installed on the surface of the outlet pipe 9. Extending above the foundation 1, the bottom of the sealing cover 4 is fixed with two filter cylinders 5, and the two filter cylinders 5 are respectively covered around the two liquid extraction pipes 11. The top of the liquid extraction pipe 11 is equipped with a filter head 12, and the filter head 12 extends to the inside of the filter cylinder 5. The inner wall of the bowl-shaped fermentation tank 2 is coated with a kiln mud layer 3. Through the setting of the filter head 12, secondary filtration in the extraction stage is achieved to prevent the fermentation raw materials from being extracted. The control method of the liquid pump 10 in this utility model is controlled by manually starting and stopping the switch. The wiring diagram of the power component and the power supply are common knowledge in this field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail in this utility model.

[0022] In one embodiment, the bottom surface of the filter cylinder 5 is in contact with the bottom of the bowl-shaped fermentation tank 2, and the bottom surface of the filter cylinder 5 is provided with a circular hole 13 corresponding to the liquid extraction pipe 11. The circular hole 13 makes way for the connection between the liquid extraction pipe 11 and the filter cylinder 5.

[0023] In one embodiment, the thickness of the kiln mud layer 3 is 5-8 cm, and a brick isolation strip is constructed between the kiln mud layer 3 and the foundation 1. The kiln mud layer 3 contains nutrients and liquor fermentation bacteria. Through the setting of the kiln mud layer 3 and the brick isolation strip, the kiln mud is the foundation of strong-aroma liquor brewing and an important carrier for the growth and reproduction of functional bacteria in strong-aroma liquor. The humus in the kiln mud provides nutrients for beneficial microorganisms such as caproic acid bacteria, thermoresistant Bacillus, and methanogens.

[0024] In one embodiment, the upper surface of the filter cylinder 5 is connected to several extended filter cylinders 14, and the height of the several extended filter cylinders 14 is lower than the height of the fermentation raw materials in the bowl-shaped fermentation tank 2. By setting several extended filter cylinders 14, it is easy to expand the contact area between the filter cylinder 5 and the fermentation raw materials, which is conducive to the full discharge of yellow water or crude wine in the early stage of fermentation.

[0025] In one embodiment, a pressure sensor 6 is installed on the top surface of the sealing cover 4, and the probe of the pressure sensor 6 extends into the bowl-shaped fermentation tank 2. An exhaust port 7 is provided at the edge of the top surface of the sealing cover 4, and a pressure relief valve 8 is installed on the surface of the exhaust port 7. By setting the pressure sensor 6, it is easy to detect the pressure inside the bowl-shaped fermentation tank 2, and then open the pressure relief valve 8 of the exhaust port 7 to achieve the purpose of depressurizing the bowl-shaped fermentation tank 2.

[0026] In one embodiment, the filter cylinder 5 and several extended filter cylinders 14 on its surface are all provided with annular filter screens, and the pore size of the annular filter screens is smaller than the particle size of the fermentation raw materials in the bowl-shaped fermentation tank 2. This structure makes it easy to filter the fermentation raw materials and facilitates the seepage of yellow water or crude wine in the early stage of fermentation.

[0027] Working principle:

[0028] In use, the raw materials for baijiu fermentation are first put into the bowl-shaped fermentation tank 2. The kiln mud layer 3 on the inner wall of the bowl-shaped fermentation tank 2 provides nutrients and fermentation bacteria for baijiu fermentation. By placing the sealing cap 4 at the mouth of the bowl-shaped fermentation tank 2, the two positioning grooves 15 of the sealing cap 4 are connected to the two pre-embedded rods 16 on the foundation 1, so that the two filter cylinders 5 of the sealing cap 4 are connected to the two liquid extraction pipes 11 at the bottom of the bowl-shaped fermentation tank 2. During this process, a sealing mud layer 17 is placed around the side of the sealing cap 4, so that the sealing mud layer 17 maintains the bowl-shaped fermentation tank 2 and the seal. The seal between the caps 4 ensures the absolute airtightness of the grain mash during fermentation, guaranteeing anaerobic fermentation and preventing waste caused by yeast consuming large amounts of fermentable sugar under aerobic conditions. By activating the liquid pump 10 on the surface of the liquid outlet pipe 9, the yellow water or crude liquor filtered by the two filter cylinders 5 in the early stage of fermentation is discharged through the liquid outlet pipe 9 under the suction action of the two liquid extraction pipes 11. While satisfying the sealing of the fermentation tank, it is easy to quickly absorb and discharge the yellow water in the early stage of fermentation or filter and extract the crude liquor, thus maximizing the efficiency of liquor production and fermentation.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pit-type baijiu fermentation tank using cellar mud, including a foundation (1), characterized in that: A bowl-shaped fermentation tank (2) is provided on the foundation (1), and a sealing cover (4) is installed at the opening of the bowl-shaped fermentation tank (2). A sealing mud layer (17) is wrapped around the side of the sealing cover (4), and the sealing mud layer (17) is located at the connection between the bowl-shaped fermentation tank (2) and the sealing cover (4). Two pre-embedded rods (16) are embedded in the foundation (1) corresponding to the sealing cover (4). A positioning groove (15) is provided on the bottom surface of the sealing cover (4) to be inserted into the two pre-embedded rods (16). Two liquid extraction pipes (11) are installed at the bottom of the bowl-shaped fermentation tank (2). The bottom of the two extraction pipes (11) penetrates the bowl-shaped fermentation tank (2) and is connected to the outlet pipe (9). The surface of the outlet pipe (9) is equipped with a liquid pump (10), and the outlet pipe (9) extends to the top of the foundation (1). The bottom of the sealing cover (4) is fixed with two filter cylinders (5), and the two filter cylinders (5) are respectively covered around the two extraction pipes (11). The top of the extraction pipe (11) is equipped with a filter head (12), and the filter head (12) extends to the inside of the filter cylinder (5). The inner wall of the bowl-shaped fermentation tank (2) is coated with a kiln mud layer (3).

2. The pit-type baijiu fermentation tank using cellar mud according to claim 1, characterized in that: The bottom surface of the filter cylinder (5) is in contact with the bottom of the bowl-shaped fermentation tank (2), and the bottom surface of the filter cylinder (5) is provided with a round hole (13) corresponding to the liquid extraction pipe (11).

3. The pit-type baijiu fermentation tank using cellar mud according to claim 1, characterized in that: The thickness of the kiln mud layer (3) is 5-8 cm, and a brick isolation strip is built between the kiln mud layer (3) and the foundation (1). The kiln mud layer (3) contains nutrients and liquor fermentation bacteria.

4. The pit-type baijiu fermentation tank using cellar mud according to claim 1, characterized in that: The upper surface of the filter tube (5) is connected to several extended filter tubes (14), and the height of the extended filter tubes (14) is lower than the height of the fermentation raw materials in the bowl-shaped fermentation tank (2).

5. The pit-type baijiu fermentation tank using cellar mud according to claim 1, characterized in that: A pressure sensor (6) is installed on the top surface of the sealing cover (4), and the probe of the pressure sensor (6) extends into the bowl-shaped fermentation tank (2). An exhaust nozzle (7) is provided at the edge of the top surface of the sealing cover (4), and a pressure relief valve (8) is installed on the surface of the exhaust nozzle (7).

6. The pit-type baijiu fermentation tank using cellar mud according to claim 4, characterized in that: The filter cylinder (5) and several extended filter cylinders (14) on its surface are all equipped with annular filter screens, and the pore size of the annular filter screens is smaller than the particle size of the fermentation raw materials in the bowl-shaped fermentation tank (2).

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