High-concentration starch fermentation tank for white spirit
By setting an adjustable heating space and steam heating mechanism on the outside of the fermentation tank, the problem of energy waste during the fermentation heating process is solved, achieving more efficient energy utilization and reducing the production cost of baijiu (Chinese liquor).
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XINHE HLDG GRP CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-15
AI Technical Summary
Existing fermentation tanks waste energy during the heating process, resulting in low energy utilization and increased production costs for baijiu.
An additional outer shell is installed on the outside of the fermentation tank to form adjustable side and bottom heating spaces. These spaces are heated by a steam heating mechanism. The size of the heating spaces is adjusted according to the height of the lees to concentrate the heating of the lees inside the fermentation tank.
By optimizing the heating method, energy waste was reduced, energy utilization was improved, and the production cost of baijiu (Chinese liquor) was lowered.
Smart Images

Figure CN224243038U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fermentation tank technology, specifically relating to a high-concentration starch fermentation tank for baijiu (Chinese liquor). Background Technology
[0002] Baijiu, a traditional Chinese alcoholic beverage, boasts a long history and unique brewing techniques. The fermentation process is crucial in baijiu production, directly impacting its quality, taste, and yield. High-concentration starch fermentation is a key method for improving baijiu production efficiency and quality, and the fermentation tank is the core equipment for achieving this process.
[0003] Heating is an indispensable part of the fermentation process of baijiu (Chinese liquor). Baijiu fermentation is essentially a process of microbial metabolism, in which yeasts and other microorganisms play a crucial role. The growth, reproduction, and metabolic activities of these microorganisms are closely related to temperature. A suitable temperature provides a favorable environment for their survival and promotes their metabolism.
[0004] From the perspective of thermal energy utilization, most existing fermentation tanks adopt a whole-tank heating method, that is, uniformly heating the entire tank body. However, in the actual fermentation process, the amount of mash in the fermentation tank is not always full, and the distribution and volume of mash also change at different fermentation stages. This whole-tank heating method, which does not consider the actual situation of the mash, results in a large amount of thermal energy being wasted in the space where mash is not filled, leading to low energy utilization and increased costs in baijiu production. Moreover, in order to maintain the temperature of the entire tank, the heating equipment needs to continuously consume a large amount of energy, which has a significant negative impact on the economic benefits of baijiu enterprises in today's context of increasingly scarce energy and rising costs. Utility Model Content
[0005] The purpose of this invention is to provide a high-concentration starch fermentation tank for baijiu (Chinese liquor), which can concentrate heat energy to heat the lees inside the fermentation tank, thereby reducing energy waste during the use of the fermentation tank.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A high-concentration starch fermentation tank for baijiu (Chinese liquor) includes a fermentation tank body with an internal stirring mechanism installed on it. An additional outer shell is fixedly connected to the outside of the fermentation tank body, located around the periphery and underside of the tank body. A side heating space is formed between the additional outer shell and the periphery of the tank body, and a bottom heating space is formed between the additional outer shell and the underside of the tank body. A side space height adjustment mechanism is installed on the additional outer shell to adjust the height of the side heating space. The fermentation tank also includes a heating mechanism for heating the interior of the side and bottom heating spaces.
[0008] Furthermore, the side space height adjustment mechanism includes an electric push rod fixedly connected to the upper side of the additional housing, and the piston rod of the electric push rod is fixedly connected to an air baffle plate that is vertically slidably connected inside the side heating space.
[0009] Furthermore, the heating mechanism includes a steam inlet pipe, a steam outlet pipe, and a connecting pipe. The steam inlet pipe is fixedly connected to the upper end of the auxiliary housing, the steam outlet pipe is fixedly connected to the lower end of the auxiliary housing, and the connecting pipe is fixedly connected to the air baffle plate. The steam inlet pipe and the connecting pipe are connected by a vent pipe.
[0010] The technical effects achieved by this utility model are as follows:
[0011] This utility model discloses a high-concentration starch fermentation tank for baijiu (Chinese liquor). By setting an additional outer shell on the outside of the fermentation tank body, and setting a bottom heating space and a height-adjustable side heating space between the fermentation tank body and the additional outer shell, the height of the side heating space can be adjusted according to the height of the lees inside the fermentation tank body, so that the height of the lees inside the fermentation tank body and the height of the side heating space are matched. This concentrates heat energy to heat the lees inside the fermentation tank body, reducing energy waste during the use of the fermentation tank. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a side view of the cross-sectional structure of this utility model;
[0014] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0015] The attached diagram lists the components represented by each number as follows:
[0016] 1. Fermentation tank body; 2. Drive motor; 3. Drive shaft; 4. Stirring blades; 5. Anchor-type stirring blades; 6. Feed pipe; 7. Feed inlet pipe; 8. Additional outer shell; 9. Support legs; 10. Steam inlet pipe; 11. Steam outlet pipe; 12. Air baffle plate; 13. Electric push rod; 14. Air guide pipe; 15. Connecting pipe; 16. Tension spring; 17. Heating wire. Detailed Implementation
[0017] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0018] like Figures 1-3 As shown, a high-concentration starch fermentation tank for baijiu includes a fermentation tank body 1. The upper end of the fermentation tank body 1 is fixedly connected to a feed pipe 7 for feeding the lees. The lower end of the fermentation tank body 1 is fixedly connected to a discharge pipe 6 for discharging the lees. A valve is installed on the discharge pipe 6 to control whether the discharge pipe 6 discharges.
[0019] To agitate the lees inside the fermentation tank 1, an internal agitation mechanism is installed on the fermentation tank 1. The internal agitation mechanism includes a drive motor 2 fixedly connected to the upper end of the fermentation tank 1. The output end of the drive motor 2 is fixedly connected to a drive shaft 3 located at the center of the fermentation tank 1. An anchor-type agitator blade 5 is fixedly connected to the lower end of the drive shaft 3. Multiple agitator blades 4 are fixedly connected to the periphery of the drive shaft 3. At this time, by starting the drive motor 2 to drive the drive shaft 3 to rotate, the drive shaft 3 can drive the agitator blades 4 and the anchor-type agitator blades 5 to agitate the lees inside the fermentation tank 1, ensuring the agitation effect.
[0020] In this technical solution, an additional outer shell 8 is fixedly connected to the outside of the fermenter body 1, located around the fermenter body 1 and below the fermenter body 1. The lower end of the feed pipe 6 passes through the lower part of the additional outer shell 8. Multiple support legs 9 are fixedly connected to the lower end of the additional outer shell 8. The support legs 9 are used to support the fermenter body 1 and the additional outer shell 8.
[0021] In order to better heat the lees inside the fermentation tank 1, a side heating space is formed between the auxiliary shell 8 and the side wall of the fermentation tank 1, and a bottom heating space is formed between the auxiliary shell 8 and the lower side wall of the fermentation tank 1. A side space height adjustment mechanism is installed on the auxiliary shell 8 to adjust the height of the side heating space.
[0022] like Figures 2-3 As shown, the side space height adjustment mechanism includes an electric push rod 13 fixedly connected to the upper side of the auxiliary housing 8. The piston rod of the electric push rod 13 is fixedly connected to a gas baffle 12 that is vertically slidably connected inside the side heating space. A sealing ring can be provided on the side wall of the gas baffle 12 to improve the sealing between the gas baffle 12 and the auxiliary housing 8 and the side wall of the fermentation tank 1. The space inside the auxiliary housing 8 and located below the gas baffle 12 is the side heating space. By activating the electric push rod 13 to adjust the height of the gas baffle 12, the top height of the side heating space can be adjusted, thus controlling the height of the side heating space.
[0023] The fermentation tank also includes a heating mechanism for heating the side heating space and the bottom heating space. At this time, the height of the side heating space is adjusted according to the height of the lees inside the fermentation tank 1 so that the height of the lees inside the fermentation tank 1 matches the height of the side heating space, thus concentrating heat energy to heat the lees inside the fermentation tank 1.
[0024] like Figures 2-3 As shown, the heating mechanism includes a steam inlet pipe 10, a steam outlet pipe 11, and a connecting pipe 15. The steam inlet pipe 10 is fixedly connected to the upper end of the auxiliary housing 8, the steam outlet pipe 11 is fixedly connected to the lower end of the auxiliary housing 8, and the connecting pipe 15 is fixedly connected to the air baffle plate 12. The steam inlet pipe 10 and the connecting pipe 15 are connected by a guide pipe 14. At this time, steam enters through the steam inlet pipe 10, and then is transmitted to the interior of the side heating space through the guide pipe 14 and the connecting pipe 15, then flows into the bottom heating space, and then flows out through the steam outlet pipe 11. Thus, steam can be used to heat the interior of the side heating space and the bottom heating space.
[0025] like Figures 2-3 As shown, multiple vertically arranged heating wires 17 are installed inside the side heating space. Adjacent heating wires 17 are fixedly connected by multiple tension springs 16. The uppermost heating wire 17 is fixedly connected to the air baffle 12 by multiple tension springs 16. The lowermost heating wire 17 is fixedly connected to the inner wall of the lower side of the auxiliary housing 8 by multiple tension springs 16. A controller is fixedly connected to the outside of the auxiliary housing 8. The controller is electrically connected to the heating wires 17. The controller can start the heating wires 17, which release heat energy. During the movement of the air baffle 12, the tension springs 16 drive the heating wires 17 to move, thereby automatically adjusting the position of the multiple heating wires 17 so that the multiple heating wires 17 are evenly distributed inside the side heating space.
[0026] Meanwhile, a lifting baffle can also be installed inside the fermentation tank body 1. An electric telescopic rod can be fixedly connected to the upper end of the fermentation tank body 1. The lifting baffle can be moved vertically inside the fermentation tank body 1 by the electric telescopic rod, which can reduce the loss of heat energy from the lower part of the fermentation tank body 1 to the upper part where there is no lees. It should be noted that the lifting baffle needs to be fitted with the drive shaft 3 with a clearance to meet the vertical movement of the lifting baffle. At the same time, in order to further meet the vertical movement of the lifting baffle, the stirring blades 4 on the outside of the drive shaft 3 can be removed.
[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A high-concentration starch fermentation tank for baijiu (Chinese liquor), characterized in that: The fermenter includes a fermenter body (1), on which an internal stirring mechanism is installed. An additional outer shell (8) is fixedly connected to the outside of the fermenter body (1) and located on the periphery and the lower side of the fermenter body (1). A side heating space is formed between the additional outer shell (8) and the periphery of the fermenter body (1), and a bottom heating space is formed between the additional outer shell (8) and the lower side of the fermenter body (1). A side space height adjustment mechanism is installed on the additional outer shell (8) to adjust the height of the side heating space. The fermenter also includes a heating mechanism for heating the interior of the side heating space and the bottom heating space.
2. The high-concentration starch fermentation tank for baijiu (Chinese liquor) according to claim 1, characterized in that: The in-tank stirring mechanism includes a drive motor (2) fixedly connected to the upper end of the fermentation tank body (1), the output end of the drive motor (2) is fixedly connected to a drive shaft (3) located at the center of the fermentation tank body (1), the lower end of the drive shaft (3) is fixedly connected to an anchor-type stirring blade (5), and multiple stirring blades (4) are fixedly connected to the periphery of the drive shaft (3).
3. The high-concentration starch fermentation tank for baijiu (Chinese liquor) according to claim 1, characterized in that: The side space height adjustment mechanism includes an electric push rod (13) fixedly connected to the upper side of the additional housing (8), and the piston rod of the electric push rod (13) is fixedly connected to a baffle plate (12) that is vertically slidably connected inside the side heating space.
4. The high-concentration starch fermentation tank for baijiu (Chinese liquor) according to claim 3, characterized in that: The heating mechanism includes a steam inlet pipe (10), a steam outlet pipe (11), and a connecting pipe (15). The steam inlet pipe (10) is fixedly connected to the upper end of the auxiliary housing (8), the steam outlet pipe (11) is fixedly connected to the lower end of the auxiliary housing (8), and the connecting pipe (15) is fixedly connected to the air baffle plate (12). The steam inlet pipe (10) and the connecting pipe (15) are connected by a gas guide pipe (14).
5. A high-concentration starch fermentation tank for baijiu (Chinese liquor) according to any one of claims 3-4, characterized in that: The side heating space is equipped with multiple vertically arranged heating wires (17). Two adjacent heating wires (17) are fixedly connected by multiple tension springs (16). The uppermost heating wire (17) is fixedly connected to the air baffle (12) by multiple tension springs (16). The lowermost heating wire (17) is fixedly connected to the inner wall of the lower side of the auxiliary shell (8) by multiple tension springs (16). A controller is fixedly connected to the outer side of the auxiliary shell (8). The controller is electrically connected to the heating wires (17).
6. The high-concentration starch fermentation tank for baijiu (Chinese liquor) according to claim 1, characterized in that: The upper end of the fermentation tank body (1) is fixedly connected to a feed pipe (7), the lower end of the fermentation tank body (1) is fixedly connected to a discharge pipe (6), and the lower end of the additional outer shell (8) is fixedly connected to multiple support legs (9).