Method and device for fermenting plateau craft beer with special flavor
By designing a defoaming stirring mechanism and a precise addition system, the high-altitude craft beer fermentation device solves the problems of foam dissipation and inaccurate yeast addition in high-altitude environments, improving beer fermentation efficiency and quality, and is suitable for large-scale production.
Patent Information
- Application Number
- CN202610190528.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional beer fermentation equipment suffers from poor foam dissipation and low fermentation efficiency in high-altitude environments. Inaccurate addition of beer inoculum and yeast also affects beer quality and production efficiency.
A highland craft beer fermentation device with a defoaming and stirring mechanism and a precise addition system was designed. The device includes a fermentation tank, a feeding tank, and an inoculation cylinder. The defoaming and stirring mechanism eliminates foam, and the feeding and inoculation plates enable the precise addition of beer inoculum and yeast. The temperature is controlled by a cooling jacket.
It improves the mixing uniformity and temperature control of the fermentation liquid, ensures accurate yeast addition, enhances beer fermentation quality and production efficiency, and is suitable for large-scale highland craft beer production.
Smart Images
Figure CN121975593A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of beer fermentation technology, and in particular to a method and apparatus for fermenting highland craft beer with distinctive flavor. Background Technology
[0002] In the beer brewing industry, high-altitude regions offer an ideal natural environment for brewing beers with distinctive flavors due to their unique climate conditions, such as lower air pressure, larger diurnal temperature range, and relatively pure water sources. However, traditional beer fermentation equipment often faces numerous challenges in high-altitude environments, such as low fermentation efficiency, improper foam control, and significant loss of flavor compounds. These problems limit the improvement of the quality of craft beer brewed in high-altitude areas and the development of the industry.
[0003] In traditional beer fermentation, stirring and mixing are crucial steps to ensure uniform distribution of the fermentation liquid and improve fermentation efficiency. However, the low air pressure in high-altitude areas makes it difficult for the foam generated during fermentation to dissipate naturally. Excessive foam not only affects the effective volume of the fermentation tank but may also overflow, resulting in raw material waste and environmental pollution. Furthermore, traditional stirring mechanisms have limited effectiveness in eliminating foam, failing to meet the specific needs of high-altitude craft beer production. Simultaneously, the addition of the inoculum and yeast are also important factors affecting beer flavor. Traditional methods often involve manual addition, which is not only inefficient but also difficult to precisely control the amount added, leading to unstable beer flavor. In addition, the inoculum and yeast are easily contaminated during the addition process, affecting the quality and safety of the beer. To overcome these problems and improve the quality and production efficiency of high-altitude craft beer, this invention designs a high-altitude craft beer fermentation device with distinctive flavor. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a fermentation method and apparatus for highland craft beer with distinctive flavor, so as to solve the problems of foam that is not easy to dissipate naturally during the existing beer fermentation process, as well as the low efficiency and difficulty in controlling the addition of beer inoculum and yeast.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0006] A highland craft beer fermentation device with distinctive flavor includes a fermentation tank, a feeding tank, and an inoculation cylinder. The fermentation tank has a discharge port at its bottom and a defoaming and stirring mechanism inside for stirring and mixing the fermentation liquid and eliminating foam. The feeding tank is located at the top of the fermentation tank, and its bottom has a feeding pipe extending into the fermentation tank for feeding beer inoculation liquid into the fermentation tank. The feeding tank has an inlet at its top. The inoculation cylinder is located at the top of the feeding tank and is used to hold beer inoculation yeast and add it to the feeding tank.
[0007] Optionally, the fermentation tank is provided with a cover plate at the top. The defoaming and stirring mechanism includes a first shaft that is vertically and rotatably installed on the lower surface of the cover plate and a defoaming scraper provided at the bottom end of the first shaft. A first motor for driving the first shaft to rotate is installed on the top of the cover plate. The defoaming and stirring mechanism also includes a second shaft that is vertically and rotatably installed inside the fermentation tank. Multiple stirring blades are staggered on the side wall of the second shaft. A bracket is fixed at the bottom of the fermentation tank. The bottom end of the second shaft is rotatably installed on the bracket. The second shaft is coaxial with the first shaft. A one-way rotating connector is provided between the first shaft and the second shaft. The second shaft can rotate synchronously with the first shaft in one direction through the one-way rotating connector.
[0008] Optionally, the bottom of the stirring blade is curved to one side in an arc shape, and an overflow hole is provided on the stirring blade so that the beer fermentation liquid can flow through the overflow hole. Multiple overflow holes are arranged side by side.
[0009] Optionally, the unidirectional rotating connector includes a rotating connecting sleeve coaxially fixed to the bottom end of the first shaft and a shaft block coaxially fixed to the top end of the second shaft. The defoamer scraper is radially fixed to the side wall of the rotating connecting sleeve. The bottom of the rotating connecting sleeve has a connecting cavity, and at least two bosses are provided on the inner wall of the connecting cavity. A sleeve arm is radially fixed to the top of the shaft block. A movable arm is movably inserted at the end of the sleeve arm. A spring is provided between the end of the movable arm that extends into the sleeve arm and the inner end wall of the sleeve arm. The sleeve arm and the movable arm extend into the connecting cavity. The spring force pushes the sleeve arm to abut against the inner wall of the connecting cavity. Through the locking and limiting of the bosses and the movable arm, the second shaft can rotate synchronously in one direction with the first shaft. In the opposite direction, the second shaft is not driven by the axial power transmission of the first shaft.
[0010] Optionally, a third shaft is vertically and rotatably installed inside the feeding tank, and multiple support plates are radially staggered on the third shaft; a first feeding plate is fixed to the bottom end of the feeding pipe, and a second feeding plate is provided at the bottom of the first feeding plate; the bottom end of the third shaft passes through the feeding pipe, passes through the first feeding plate, and connects to the second feeding plate; two first feeding holes are opened in the first feeding plate, and the first feeding holes are connected to the feeding pipe; a second feeding hole is opened in the second feeding plate, and the second feeding hole passes through the second feeding plate; the third shaft drives the second feeding plate to rotate so that the second feeding hole alternately aligns with and connects with the two first feeding holes.
[0011] Optionally, a first inoculation tray is fixed to the top surface of the feeding tank, and a lower discharge pipe is connected to the bottom of the first inoculation tray, extending into the feeding tank. A second inoculation tray is rotatably connected to the top of the first inoculation tray, and an upper discharge pipe is connected to the top of the second inoculation tray. The top of the upper discharge pipe is rotatably connected to and communicates with the bottom end of the inoculation cylinder. Two second inoculation holes are opened in the second inoculation tray, and the two second inoculation holes communicate with the upper discharge pipe. The second inoculation holes penetrate the bottom end surface of the second inoculation tray. Two first inoculation holes are opened in the first inoculation tray, and the two first inoculation holes communicate with the lower discharge pipe. The first inoculation holes penetrate the top surface of the first inoculation tray. The second inoculation tray rotates so that the two second inoculation holes are alternately aligned and communicated with the two first inoculation trays. A circular groove is opened on the top surface of the first inoculation tray, and the second inoculation holes are located in the groove. A sealing gasket is provided in the groove, and the sealing gasket has holes aligned with the second inoculation holes. A disc-shaped protrusion embedded in the groove is provided at the bottom end of the second inoculation tray.
[0012] Optionally, a bracket is fixed at the top of the feeding tank, a second motor is mounted on the bracket, a first pulley is connected to the output shaft of the second motor, the third shaft is coaxially connected to the first pulley and the output shaft of the second motor, and a toothed belt is fitted between the first pulley and the second inoculation tray, the radius of the first pulley being smaller than the radius of the second inoculation tray.
[0013] Optionally, the bottom of the fermentation tank is configured as a conical structure, and the angle between the conical surface of the bottom of the fermentation tank and the horizontal plane is 45°; an annular cooling jacket is provided at the side wall of the fermentation tank, and a conical cooling jacket is provided at the conical structure at the bottom of the fermentation tank; cooling coils are arranged inside the annular and conical cooling jackets; liquid inlet and liquid outlet connected to the cooling coils are provided on the annular and conical cooling jackets; multiple thermometers are provided on the side wall of the fermentation tank; a pressure relief valve is provided at the top of the fermentation tank; an exhaust port is provided at the top of the side wall of the fermentation tank; an air inlet pipe is provided at the top of the fermentation tank, and the air inlet pipe extends into the bottom of the fermentation tank and bends towards the middle of the fermentation tank.
[0014] Compared with the prior art, the present invention has at least the following beneficial effects:
[0015] In the above scheme, by setting up a defoaming stirring mechanism, the cooperation of the first and second shafts achieves thorough stirring of the fermentation broth and effective elimination of foam, improving the mixing uniformity of the fermentation broth, which is conducive to the smooth progress of the fermentation process, while reducing the impact of foam on the fermentation process.
[0016] By coordinating the second feeding tray with the first feeding tray and the second inoculation tray with the first inoculation tray, the precise addition of beer inoculation liquid and beer inoculation yeast is achieved, ensuring the accurate addition of yeast and inoculation liquid during fermentation, which is beneficial to improving beer quality and fermentation effect.
[0017] The cooling coils inside the annular and conical cooling jackets allow for comprehensive temperature control of the fermentation liquid within the fermentation tank, ensuring that the fermentation process takes place at a suitable temperature. This is beneficial for yeast growth and fermentation reactions, thereby improving the fermentation quality and stability of the beer.
[0018] The device has a reasonable overall structure, with centralized beer fermentation and inoculation. The components are closely integrated, making it easy to operate and achieve automated control. This improves production efficiency, reduces labor intensity, and is suitable for large-scale highland craft beer production. Attached Figure Description
[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.
[0020] Figure 1 A schematic diagram of the overall structure of a highland craft beer fermentation unit with distinctive flavor;
[0021] Figure 2 This is a schematic diagram of the defoaming stirring mechanism;
[0022] Figure 3 This is a schematic diagram of a unidirectional rotating connector.
[0023] Figure 4 A schematic diagram of the connection structure between the sleeve arm and the movable arm;
[0024] Figure 5 This is a schematic diagram of the stirring blade structure;
[0025] Figure 6 This is a schematic diagram of the feeding tank.
[0026] Figure 7 This is a schematic diagram of the feeding mechanism;
[0027] Figure 8 This is a schematic diagram of the structure of the first and second inoculation trays;
[0028] Figure 9 This is a schematic diagram of the structure of the first inoculation tray;
[0029] Figure 10 This is a schematic diagram of the structure of the first and second feeding trays.
[0030] Figure label:
[0031] 1. Fermentation tank body; 2. Annular cooling jacket; 3. Conical cooling jacket; 4. Cooling coil; 5. Liquid inlet; 6. Liquid outlet; 7. Defoaming stirring mechanism; 8. First motor; 9. Cover plate; 10. Discharge port; 11. Pressure relief valve; 12. Exhaust port; 13. Air inlet pipe; 14. Thermometer; 15. Feeding tank; 16. First shaft; 17. Second shaft; 18. One-way rotating connector; 19. Defoaming scraper; 20. Stirring blade; 21. Bracket; 22. Rotary connecting sleeve; 23. Connecting cavity; 24. Boss; 25. Shaft block; 26. Sleeve arm; 27. Movable arm; 28. Spring; 29. Overflow hole; 30. Third shaft; 31. Support plate; 32. Inoculation cylinder; 33. Second motor; 34. Feeding pipe; 35. First feeding plate; 36. Second feeding plate; 37. Bracket; 38. First pulley; 39. First inoculation plate; 40. Second inoculation plate; 41. Upper feeding pipe; 42. Lower feeding pipe; 43. Toothed belt; 44. First inoculation hole; 45. Second inoculation hole; 46. Sealing gasket; 47. Groove; 48. First feeding hole; 49. Second feeding hole.
[0032] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0033] The following is a detailed description of a fermentation method and apparatus for highland craft beer with distinctive flavor, provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0035] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0036] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0037] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0038] like Figure 1 and Figure 6 As shown, an embodiment of the present invention provides a fermentation apparatus for highland craft beer with distinctive flavor, including a fermentation tank 1, a defoaming and stirring mechanism 7, a feeding tank 15, and an inoculation cylinder 32.
[0039] like Figure 1As shown, the fermentation tank 1 is cylindrical in shape, with a conical bottom. The angle between the conical surface and the horizontal plane is 45°, facilitating the discharge of materials after fermentation. A discharge port 10 is provided at the bottom of the fermentation tank 1. A circular cooling jacket 2 is located on the side wall of the fermentation tank 1, and a conical cooling jacket 3 is located at the conical bottom. Cooling coils 4 are arranged inside the circular cooling jacket 2 and the conical cooling jacket 3. Inlet ports 5 and outlet ports 6, connecting to the cooling coils 4, are provided on the circular cooling jacket 2 and the conical cooling jacket 3. By introducing a cooling medium into the cooling coils 4, the temperature of the fermentation liquid inside the fermentation tank 1 can be controlled. Multiple thermometers 14 are installed on the side wall of the fermentation tank 1 for real-time monitoring of the fermentation liquid temperature. A pressure relief valve 11 and an exhaust port 12 are provided at the top of the fermentation tank 1 for adjusting the pressure inside the fermentation tank 1. An air inlet pipe 13 is provided at the top of the fermentation tank 1. The air inlet pipe 13 extends into the bottom of the fermentation tank 1 and bends towards the middle of the fermentation tank 1 to introduce sterile air or carbon dioxide into the fermentation liquid.
[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the defoaming and stirring mechanism 7 is installed inside the fermentation tank 1. A cover plate 9 is installed at the top of the fermentation tank 1. The defoaming and stirring mechanism 7 includes a first shaft 16 vertically rotatably mounted on the lower surface of the cover plate 9 and a defoaming scraper 19 located at the bottom end of the first shaft 16. A first motor 8 for driving the first shaft 16 to rotate is installed on the top of the cover plate 9. The defoaming and stirring mechanism 7 also includes a second shaft 17 vertically rotatably mounted inside the fermentation tank 1. Multiple stirring blades 20 are staggered on the side wall of the second shaft 17. The bottom of each stirring blade 20 is curved to one side in an arc shape. Multiple overflow holes 29 are provided side-by-side on each stirring blade 20, allowing the beer fermentation liquid to flow through the overflow holes 29. A bracket 21 is fixed at the bottom of the fermentation tank 1. The bottom end of the second shaft 17 is rotatably mounted on the bracket 21. The second shaft 17 is coaxially distributed with the first shaft 16. A one-way rotating connector 18 is provided between the first shaft 16 and the second shaft 17. The second shaft 17 can rotate synchronously with the first shaft 16 in one direction through the one-way rotating connector 18. The one-way rotating connector 18 includes a rotating connecting sleeve 22 coaxially fixed to the bottom end of the first shaft 16 and a shaft block 25 coaxially fixed to the top end of the second shaft 17. A defoaming scraper 19 is radially fixed to the side wall of the rotating connecting sleeve 22. The bottom of the rotary connecting sleeve 22 is provided with a connecting cavity 23. At least two bosses 24 are provided on the inner wall of the connecting cavity 23. The top of the shaft block 25 is radially fixed with a sleeve arm 26. A movable arm 27 is movably inserted through the end of the sleeve arm 26. A spring 28 is provided between the end of the movable arm 27 that extends into the sleeve arm 26 and the inner end wall of the sleeve arm 26. The sleeve arm 26 and the movable arm 27 extend into the connecting cavity 23. The spring 28 pushes the sleeve arm 26 to abut against the inner wall of the connecting cavity 23. Through the locking and limiting of the bosses 24 and the movable arm 27, the second shaft 17 can rotate synchronously in one direction with the first shaft 16. When the direction is reversed, the second shaft 17 is not driven by the axial power transmission of the first shaft 16.
[0041] like Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the feeding tank 15 is located at the top of the fermentation tank 1, and the inoculation cylinder 32 is located at the top of the feeding tank 15, used to hold beer inoculation yeast and add it into the feeding tank 15. A feeding pipe 34 extending into the fermentation tank 1 is provided at the bottom of the feeding tank 15 for feeding beer inoculation liquid into the fermentation tank 1, and a feed inlet is provided at the top of the feeding tank 15. A third shaft 30 is vertically and rotatably mounted inside the feeding tank 15, and multiple support plates 31 are radially staggered on the third shaft 30.
[0042] Furthermore, a first feeding plate 35 is fixed to the bottom end of the feeding pipe 34, and a second feeding plate 36 is provided at the bottom of the first feeding plate 35. The bottom end of the third shaft 30 passes through the feeding pipe 34, passes through the first feeding plate 35, and connects with the second feeding plate 36. Two first feeding holes 48 are opened in the first feeding plate 35, and the first feeding holes 48 are connected to the feeding pipe 34. A second feeding hole 49 is opened in the second feeding plate 36, and the second feeding hole 49 passes through the second feeding plate 36. The third shaft 30 drives the second feeding plate 36 to rotate so that the second feeding hole 49 is alternately aligned with and connected to the two first feeding holes 48, thereby controlling the amount of beer inoculum added.
[0043] Furthermore, a first inoculation plate 39 is fixed to the top surface of the feeding tank 15. A lower discharge pipe 42 is connected to the bottom of the first inoculation plate 39 and extends into the feeding tank 15. A second inoculation plate 40 is rotatably connected to the top of the first inoculation plate 39. An upper discharge pipe 41 is connected to the top of the second inoculation plate 40. The top of the upper discharge pipe 41 is rotatably connected to and communicates with the bottom end of the inoculation cylinder 32. Two second inoculation holes 45 are opened in the second inoculation plate 40 and communicate with the upper discharge pipe 41. The second inoculation holes 45 penetrate the bottom surface of the second inoculation plate 40. Two first inoculation holes 44 are opened in the first inoculation plate 39 and communicate with the lower discharge pipe 42. The first inoculation holes 44 penetrate the top surface of the first inoculation plate 39. The second inoculation plate 40 is rotated so that the two second inoculation holes 45 and the two first inoculation holes 44 are alternately aligned and connected, thereby controlling the amount of beer inoculation yeast added. The top surface of the first inoculation tray 39 has a circular groove 47, the second inoculation hole 45 is located in the groove 47, a sealing gasket 46 is provided in the groove 47, the sealing gasket 46 has a hole aligned with the second inoculation hole 45, and the bottom end of the second inoculation tray 40 has a disc-shaped protrusion embedded in the groove 47.
[0044] Furthermore, a bracket 37 is fixed at the top of the feeding tank 15, and a second motor 33 is installed on the bracket 37. A first pulley 38 is connected to the output shaft of the second motor 33. A third shaft 30 is coaxially connected to the first pulley 38 and the output shaft of the second motor 33. A toothed belt 43 is fitted between the first pulley 38 and the second inoculation tray 40. The radius of the first pulley 38 is smaller than the radius of the second inoculation tray 40. The second motor 33 drives the third shaft 30 and the second inoculation tray 40 to rotate.
[0045] The working principle of the technical solution provided by this invention is as follows:
[0046] Fermentation broth stirring and defoaming: The beer fermentation broth is added to the fermentation tank 1. The first motor 8 is started, driving the first shaft 16 to rotate. Through the unidirectional rotating connector 18, the first shaft 16 drives the second shaft 17 to rotate synchronously in one direction. The stirring blades 20 on the second shaft 17 thoroughly stir the fermentation broth, ensuring uniform mixing. The overflow holes 29 on the stirring blades 20 allow for better flow of the fermentation broth during stirring, improving the stirring effect. After stirring, the first motor 8 is started in reverse, driving the first shaft 16 to rotate. The first shaft 16 independently drives the defoaming scraper 19 to rotate, stirring the surface of the fermentation broth and simultaneously scraping off the foam on the surface.
[0047] Temperature control: Cooling medium is introduced into the cooling coil 4 through the liquid inlet 5. The cooling medium flows in the cooling coil 4, absorbs the heat generated by the fermentation liquid, and is then discharged from the liquid outlet 6, thereby controlling the temperature of the fermentation liquid and ensuring that the fermentation process is carried out at a suitable temperature.
[0048] Beer inoculum addition: Add beer inoculum into feeding tank 15, start the second motor 33, the second motor 33 drives the first pulley 38 to rotate, the first pulley 38 drives the second inoculum disc 40 to rotate through the toothed belt 43, and at the same time the first pulley 38 drives the third shaft 30 to rotate. The third shaft 30 drives the second feeding disc 36 to rotate, so that the second feeding hole 49 is alternately aligned with and connected to the two first feeding holes 48, thereby controlling the quantitative addition of beer inoculum from the feeding pipe 34 into the fermentation tank 1.
[0049] Beer inoculation yeast addition: The beer inoculation yeast in the inoculation cylinder 32 enters the second inoculation tray 40 through the upper feed pipe 41. The second inoculation tray 40 rotates so that the two second inoculation holes 45 are alternately aligned and connected with the two first inoculation holes 44, thereby allowing the beer inoculation yeast to be quantitatively added to the feeding tank 15 through the lower feed pipe 42. After mixing with the beer inoculation liquid, it enters the fermentation tank 1 to provide yeast for the fermentation process.
[0050] Pressure regulation and gas exchange: Gases generated during fermentation are discharged through exhaust port 12. When the pressure inside fermentation tank 1 is too high, pressure relief valve 11 automatically opens to release pressure, ensuring stable pressure inside fermentation tank 1. Nitrogen or carbon dioxide can be introduced into the fermentation tank through air inlet pipe 13 to expel air from the tank and reduce the oxygen concentration to below 0.5%. The anaerobic fermentation environment is conducive to anaerobic respiration of yeast, efficiently converting sugars into alcohol and carbon dioxide, while avoiding oxidation reactions that damage the flavor and nutrients of beer.
[0051] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0052] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A fermentation apparatus for highland craft beer with distinctive flavor, characterized in that, include: Fermentation tank (1), with a discharge port (10) at the bottom end of the fermentation tank (1), and a defoaming stirring mechanism (7) inside the fermentation tank (1), which is used to stir and mix the fermentation liquid and eliminate foam; Feeding tank (15), the feeding tank (15) is set at the top of the fermentation tank (1), the bottom of the feeding tank (15) is provided with a feeding pipe (34) extending into the fermentation tank (1) for feeding beer inoculum into the fermentation tank (1), and the top of the feeding tank (15) is provided with a feed inlet; Inoculation cylinder (32) is located at the top of the feeding tank (15) and is used to hold beer inoculation yeast and add it into the feeding tank (15).
2. The highland craft beer fermentation apparatus with distinctive flavor according to claim 1, characterized in that, The fermentation tank (1) is provided with a cover plate (9) at the top. The defoaming stirring mechanism (7) includes a first shaft (16) that is vertically rotated and installed on the lower surface of the cover plate (9) and a defoaming scraper (19) provided at the bottom end of the first shaft (16). A first motor (8) for driving the first shaft (16) to rotate is installed on the top of the cover plate (9). The defoaming stirring mechanism (7) also includes a second shaft (17) that is vertically and rotatably installed inside the fermentation tank (1). Multiple stirring blades (20) are staggered on the side wall of the second shaft (17). A bracket (21) is fixed at the bottom of the fermentation tank (1). The bottom end of the second shaft (17) is rotatably installed on the bracket (21). The second shaft (17) is coaxially distributed with the first shaft (16). A one-way rotating connector (18) is provided between the first shaft (16) and the second shaft (17). The second shaft (17) can rotate synchronously with the first shaft (16) in one direction through the one-way rotating connector (18).
3. The highland craft beer fermentation apparatus with distinctive flavor according to claim 2, characterized in that, The bottom of the stirring blade (20) is curved to one side in an arc shape. An overflow hole (29) is provided on the stirring blade (20), and the beer fermentation liquid can flow from the overflow hole (29). Multiple overflow holes (29) are provided side by side.
4. The highland craft beer fermentation apparatus with distinctive flavor according to claim 2, characterized in that, The unidirectional rotating connector (18) includes a rotating connecting sleeve (22) coaxially fixed to the bottom end of the first shaft (16) and a shaft block (25) coaxially fixed to the top end of the second shaft (17). The defoaming scraper (19) is radially fixed to the side wall of the rotating connecting sleeve (22). The bottom of the rotating connecting sleeve (22) is provided with a connecting cavity (23). At least two bosses (24) are provided on the inner wall of the connecting cavity (23). The top of the shaft block (25) is radially fixed with a sleeve arm (26). A movable arm (27) is movably inserted through the end of the sleeve arm (26). A spring (28) is provided between the end of the movable arm (27) that extends into the sleeve arm (26) and the inner end wall of the sleeve arm (26). The sleeve arm (26) and the movable arm (27) extend into the connecting cavity (23). The spring (28) pushes the sleeve arm (26) to abut against the inner wall of the connecting cavity (23). Through the locking and limiting of the bosses (24) and the movable arm (27), the second shaft (17) can rotate synchronously in one direction with the first shaft (16). In the opposite direction, the second shaft (17) is not driven by the axial power transmission of the first shaft (16).
5. The highland craft beer fermentation apparatus with distinctive flavor according to claim 1, characterized in that, The feeding tank (15) is vertically and rotatably installed with a third shaft (30), and multiple support plates (31) are radially offset on the third shaft (30). The bottom end of the feeding tube (34) is fixed with a first feeding plate (35), and the bottom of the first feeding plate (35) is provided with a second feeding plate (36). The bottom end of the third shaft (30) passes through the feeding tube (34), passes through the first feeding plate (35), and connects with the second feeding plate (36). The first feeding plate (35) has two first feeding holes (48) and the first feeding holes (48) are connected to the feeding tube (34). The second feeding plate (36) has a second feeding hole (49) and the second feeding hole (49) passes through the second feeding plate (36). The third shaft (30) drives the second feeding plate (36) to rotate so that the second feeding hole (49) is alternately aligned with and connected to the two first feeding holes (48).
6. The highland craft beer fermentation apparatus with distinctive flavor according to claim 5, characterized in that, The top surface of the feeding tank (15) is fixed with a first inoculation plate (39), and the bottom of the first inoculation plate (39) is connected to a lower discharge pipe (42). The lower discharge pipe (42) extends into the feeding tank (15). The top of the first inoculation plate (39) is rotatably connected to a second inoculation plate (40), and the top of the second inoculation plate (40) is connected to an upper discharge pipe (41). The top of the upper discharge pipe (41) is rotatably connected to and connected to the bottom of the inoculation cylinder (32). The second inoculation plate (40) has two second inoculation holes. 45), two second inoculation holes (45) are connected to the upper feed pipe (41), the second inoculation holes (45) penetrate the bottom surface of the second inoculation tray (40), two first inoculation holes (44) are opened in the first inoculation tray (39), the two first inoculation holes (44) are connected to the lower feed pipe (42), the first inoculation holes (44) penetrate the top surface of the first inoculation tray (39), the second inoculation tray (40) rotates so that the two second inoculation holes (45) are alternately aligned and connected with the two first inoculation trays (39); The top surface of the first inoculation tray (39) is provided with a circular groove (47), the second inoculation hole (45) is located in the groove (47), a sealing gasket (46) is provided in the groove (47), the sealing gasket (46) is provided with a hole that aligns with the second inoculation hole (45), and the bottom end of the second inoculation tray (40) is provided with a disc-shaped protrusion embedded in the groove (47).
7. The highland craft beer fermentation apparatus with distinctive flavor according to claim 6, characterized in that, The top of the feeding tank (15) is fixed with a bracket (37), a second motor (33) is installed on the bracket (37), a first pulley (38) is connected to the output shaft of the second motor (33), the third shaft (30) is coaxially connected with the first pulley (38) and the output shaft of the second motor (33), a toothed belt (43) is fitted between the first pulley (38) and the second inoculation tray (40), and the radius of the first pulley (38) is smaller than the radius of the second inoculation tray (40).
8. The highland craft beer fermentation apparatus with distinctive flavor according to claim 1, characterized in that, The bottom of the fermentation tank (1) is set as a conical structure, and the angle between the conical surface at the bottom of the fermentation tank (1) and the horizontal plane is 45°. The fermentation tank (1) is provided with an annular cooling jacket (2) on its side wall and a conical cooling jacket (3) at the bottom conical structure of the fermentation tank (1). Cooling coils (4) are arranged inside the annular cooling jacket (2) and the conical cooling jacket (3). The annular cooling jacket (2) and the conical cooling jacket (3) are provided with an inlet (5) and an outlet (6) that connect to the cooling coils (4). Multiple thermometers (14) are installed on the side wall of the fermentation tank (1), and a pressure relief valve (11) is installed at the top of the fermentation tank (1). The fermentation tank (1) has an exhaust port (12) at the top of its side wall and an air inlet pipe (13) at the top of its side wall. The air inlet pipe (13) extends into the bottom of the fermentation tank (1) and bends toward the middle of the fermentation tank (1).