A non-alcoholic beer mash fermenter for inhibiting alcohol production

Abstract

This application relates to the field of rice wine fermentation technology, specifically disclosing a non-alcoholic rice wine fermentation tank for inhibiting alcohol production. The tank includes a fermentation vessel body and a top cover. Two inlets are opened on the outer surface of the top cover, each inlet being secured with a blocking block. The top cover is secured to the top of the fermentation vessel body, and ventilation mechanisms are provided on both outer surfaces of the fermentation vessel body. This invention uses a feeding component to quantitatively feed yeast powder according to requirements, ensuring a precise and stable ratio of glutinous rice to yeast. It can also filter the yeast powder and grind large yeast particles, ensuring that the added yeast dissolves and activates at the same rate, guaranteeing uniform fermentation, and improving the quality consistency and production stability of the non-alcoholic rice wine. A shaking component can evenly mix the yeast into the glutinous rice, while gentle stirring avoids damage to the glutinous rice during the stirring process, thereby improving product quality.

Description

Technical Field

[0001] This application relates to the field of rice wine fermentation technology, and in particular to a non-alcoholic rice wine fermentation tank that inhibits alcohol production. Background Technology

[0002] Non-alcoholic fermented glutinous rice is an alcohol-free improved version of traditional fermented glutinous rice. It uses glutinous rice as its raw material, undergoing fermentation with yeast to inhibit alcohol production and stabilize saccharification and fermentation. Precise control requires specialized fermentation tanks, rather than traditional open containers. Simple containers such as basins and buckets cannot stabilize the temperature, oxygen, and microbial environment, easily leading to excessive yeast growth and alcohol production, making it difficult to guarantee non-alcoholic quality. The fermentation tank promotes Rhizopus saccharification by controlling oxygen supply, while simultaneously inhibiting anaerobic yeast fermentation and alcohol production, achieving low-alcohol or even alcohol-free fermentation from the source. Current conventional technologies also have the following problems:

[0003] 1. It is difficult to add the yeast in the fermentation tank according to the amount of glutinous rice. If too much yeast is added, saccharification and fermentation will be too fast, yeast will multiply and produce alcohol, exceeding the alcohol-free index. If too little yeast is added, saccharification will be insufficient. Uneven addition of yeast will cause an imbalance in the ratio and disrupt the microbial environment in the tank, affecting the fermentation of glutinous rice. In addition, some fermentation tanks use other equipment to weigh and add yeast, but it is impossible to grind the yeast before adding it. The powdered yeast will contain large particles that are not ground properly, resulting in different dissolution and activation rates, increasing the difficulty of mixing, and seriously affecting the consistency of the quality and production stability of alcohol-free fermented glutinous rice.

[0004] 2. Existing fermentation tanks cannot evenly mix the yeast with glutinous rice. Using conventional stirring mechanisms can easily damage the glutinous rice. Yeast is the core microbial carrier for fermentation. If the yeast and steamed glutinous rice are not fully mixed, the distribution of microorganisms will be extremely uneven. In areas with too much yeast, microorganisms will over-proliferate and quickly produce alcohol, destroying the alcohol-free index. In areas with too little yeast, saccharification will be insufficient, resulting in hard rice grains and insufficient sweetness, thus reducing product quality. Summary of the Invention

[0005] To overcome the difficulties in quantitatively adding yeast based on the amount of glutinous rice, uneven yeast addition leading to an imbalance in the microbial environment within the fermentation tank, thus affecting glutinous rice fermentation, and to address the shortcomings of some fermentation tanks that rely on weighing yeast for addition without grinding it beforehand, resulting in powdered yeast mixed with large, poorly ground particles, causing uneven dissolution and activation rates and severely uneven fermentation, the coexistence of these issues leads to an imbalance in saccharification progress, increases mixing difficulty, and seriously affects the consistency of quality and production stability of non-alcoholic fermented glutinous rice. Furthermore, the fermentation tank cannot evenly mix yeast with glutinous rice. Yeast is the core microbial carrier for fermentation; if yeast and steamed glutinous rice are not sufficiently mixed, the fermentation tank will suffer from these drawbacks. The purpose of this invention is to provide a non-alcoholic fermentation tank for fermenting glutinous rice that inhibits alcohol production, thereby solving the aforementioned deficiencies.

[0006] This application provides a non-alcoholic fermentation tank for inhibiting alcohol production, comprising a fermentation tank body and a top cover. The outer surface of the top cover has two inlets, each secured with a blocking block. The top cover is secured to the top of the fermentation tank body. Ventilation mechanisms are provided on both outer surfaces of the fermentation tank body. A shaking assembly is provided within the inner cavity of the fermentation tank body. A discharging assembly is provided on the upper surface of the top cover. Limiting blocks are fixedly installed on the inner wall of the fermentation tank body. A support plate is slidably connected to the inner cavity of the fermentation tank body, with the upper surface of the support plate and the lower surface of the limiting block in close contact. The discharging assembly includes a storage... The storage cylinder has a chuck that engages with its top. A second motor is mounted on the outer surface of the chuck. A second rotating rod is rotatably connected to the inner cavity of the chuck. The second rotating rod is rotatably connected to the storage cylinder. A grinding mechanism is sleeved on the outer surface of the second rotating rod. A filter screen is installed inside the inner cavity of the storage cylinder. A feeding mechanism is installed at the bottom of the storage cylinder. A support block is fixedly installed on the outer surface of the storage cylinder. The support block is fixedly connected to the upper surface of the top cover and is located directly above one of the feed inlets. The second rotating rod is rotatably connected to the filter screen. The output end of the second motor is sleeved with the second rotating rod.

[0007] Furthermore, the grinding mechanism includes a rotating bar, a connecting block fixedly mounted on the lower surface of the rotating bar, a first threaded rod rotatably connected to the inner cavity of the connecting block, a receiving rod fixedly mounted on the lower surface of the connecting block, a lifting rod slidably connected to the inner cavity of the receiving rod, a slider slidably connected to the lower surface of the connecting block, a drive rod fixedly mounted on the outer surface of the slider, an adjusting block fixedly mounted at the bottom end of the lifting rod, a drive groove formed on the outer surface of the adjusting block, the drive rod and the drive groove slidably connected, the slider and the first threaded rod connected by threads, a connecting frame fixedly mounted on the lower surface of the adjusting block, a squeezing roller rotatably connected to the inner cavity of the connecting frame, the rotating bar and the second rotating rod fixedly connected, and a gap between the squeezing roller and the upper surface of the filter screen.

[0008] Furthermore, the feeding mechanism includes a connecting plate, a first feeding cylinder is fixedly connected to the inner cavity of the connecting plate, a second feeding cylinder is slidably connected to the inner cavity of the first feeding cylinder, a connecting sleeve is fixedly connected to the outer surface of the second feeding cylinder, an adjusting block is fixedly installed at the bottom end of the storage cylinder, a second threaded rod is rotatably connected to the inner cavity of the adjusting block, an adjusting plate is slidably connected to the outer surface of the adjusting block, a connecting ring is fixedly installed on the outer surface of the first feeding cylinder, a second elastic rod is slidably connected to the inner cavity of the connecting ring, a fixing ring is fixedly installed on the outer surface of the second elastic rod, a fourth spring is sleeved on the outer surface of the fixing ring, and a compression ring is fixedly installed at the bottom end of the storage cylinder, with protruding rods evenly arranged on the inner wall of the compression ring.

[0009] Furthermore, the fourth spring is located between the connecting ring and the fixed ring, and the inner walls of the fixed ring and the connecting ring are in close contact. One end of the second elastic rod is rounded. The connecting plate and the bottom wall of the storage cylinder are rotatably connected. The end of the connecting sleeve away from the second feeding cylinder is slidably connected to the second rotating rod. The bottom end of the connecting sleeve and the upper surface of the adjusting plate are always rotatably connected. The bottom end of the second feeding cylinder and the upper surface of the adjusting plate are slidably connected. The second feeding cylinder and the upper surface of the adjusting plate are in close contact. A feeding hole is opened at the bottom end of the storage cylinder. When the first feeding cylinder rotates, its top end is aligned with the feeding hole of the storage cylinder. Scale lines are set on the outer surfaces of both the first and second feeding cylinders. The adjusting plate and the second threaded rod are connected by threads. When the second rotating rod rotates, the rounded end of the second elastic rod contacts the protruding rod and squeezes the second elastic rod. During the squeezing process, the other end of the second elastic rod contacts the outer surface of the first feeding cylinder.

[0010] Furthermore, the ventilation mechanism includes a connecting pipe, a shielding plate fixedly installed in the inner cavity of the connecting pipe, a ventilation disc slidably connected in the inner cavity of the connecting pipe, a first elastic rod fixedly installed in the middle part of the ventilation disc, a first spring sleeved on the outer surface of the first elastic rod, a ventilation pipe fixedly installed on the outer surface of the ventilation disc, a ventilation hole opened on the outer surface of the ventilation pipe, the connecting pipe and the inner cavity of the fermentation tank are fixedly connected, the ventilation pipe and the shielding plate are slidably connected, the first spring is located between the shielding plate and the ventilation disc, and the ventilation hole is located between the ventilation disc and the shielding plate.

[0011] Furthermore, the shaking assembly includes a first motor, a connecting rod rotatably connected to the inner cavity of the top cover, the output end of the first motor and the connecting rod being sleeved together, a first rotating rod being inserted and connected to the end of the connecting rod away from the first motor, a shaking mechanism being sleeved on the outer surface of the first rotating rod, and three shaking mechanisms being provided. The first rotating rod and the support plate are rotatably connected, and the support plate can slide in the up and down direction on the outer surface of the first rotating rod. A floating mechanism is provided at the bottom end of the first rotating rod.

[0012] Furthermore, the shaking mechanism includes a floating sleeve, a shaking rod fixedly installed on the outer surface of the floating sleeve, limit rings provided at both ends of the floating sleeve, a floating ring fixedly installed in the middle part of the floating sleeve, a first sliding rod fixedly installed at both ends of the floating ring, and a second spring sleeved on the outer surface of the first sliding rod.

[0013] Furthermore, the floating sleeve and the limiting ring are slidably connected, the limiting ring and the first rotating rod are fixedly connected, the floating ring and the first rotating rod do not contact each other, the second spring is located between the floating ring and the limiting ring, and the first sliding rod and the limiting ring are slidably connected.

[0014] Furthermore, the floating mechanism includes a support frame, a limit rod is slidably connected to the inner cavity of the support frame, a third spring is sleeved on the outer surface of the limit rod, a protrusion is fixedly installed on the outer surface of the support frame, a connecting strip is fixedly installed at the bottom end of the first rotating rod, and a pressing rod is fixedly installed at both ends of the connecting strip, with a ball movably connected to the bottom end of the pressing rod.

[0015] Furthermore, the bottom end of the limiting rod is fixedly connected to the bottom wall of the fermentation tank, the third spring is located between the support frame and the bottom wall of the fermentation tank, there is a gap between the connecting strip and the lower surface of the support plate, when the first rotating rod rotates, the ball passes through the protrusion and squeezes the protrusion, and the two ends of the support frame are in close contact with the lower surface of the support plate.

[0016] The technical solution provided in this application has at least the following technical effects or advantages:

[0017] 1. Due to the adoption of a feeding assembly, the existing fermentation tanks effectively solve the problem of quantitatively adding yeast based on the amount of glutinous rice. Excessive yeast addition leads to overly rapid saccharification and fermentation, causing yeast to multiply excessively and produce alcohol, exceeding the alcohol-free threshold. Insufficient addition results in incomplete saccharification. Uneven yeast addition leads to an imbalance in the microbial environment within the tank, affecting the fermentation of the glutinous rice. Furthermore, some fermentation tanks that rely on other equipment to weigh and add yeast cannot grind it before addition. This results in powdered yeast containing large, poorly ground particles, causing uneven dissolution and activation rates, leading to severely uneven fermentation. The coexistence of these two factors can cause an imbalance in the saccharification process, increase the difficulty of mixing, and seriously affect the quality consistency and production stability of non-alcoholic fermented glutinous rice. This invention, through its feeding component, can quantitatively feed the yeast powder according to demand, ensuring a precise and stable ratio of glutinous rice to yeast, keeping saccharification and fermentation in an optimal state at all times. This results in consistent fermentation speed and uniform sweetness within the tank, significantly improving the product qualification rate. Furthermore, it can filter the yeast powder and grind large yeast particles, thereby ensuring that the added yeast dissolves and activates at the same rate, guaranteeing the uniformity of fermentation and improving the quality consistency and production stability of non-alcoholic fermented glutinous rice.

[0018] 2. By employing a shaking component, this invention effectively solves the problem of existing fermentation tanks failing to evenly mix the yeast with glutinous rice. Conventional stirring mechanisms can easily damage the glutinous rice. Yeast is the core microbial carrier for fermentation. If the yeast and steamed glutinous rice are not thoroughly mixed, the distribution of microorganisms will be extremely uneven. In areas with excessive yeast, microorganisms will over-proliferate, easily producing alcohol and compromising the alcohol-free index. In areas with insufficient yeast, saccharification will be inadequate, resulting in hard rice grains and insufficient sweetness, thus reducing product quality. This invention, through its shaking component, can evenly mix the yeast with the glutinous rice. At the same time, the gentle stirring avoids damage to the glutinous rice during the stirring process. It can also shake the glutinous rice during the stirring process, preventing it from settling at the bottom. Shaking allows the glutinous rice and yeast in the tank to be further mixed evenly, promotes gas circulation in the tank, and prevents excessive local temperature, maintaining a stable fermentation temperature, thereby improving product quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0020] Figure 2 This is a schematic cross-sectional view of the fermentation tank in Embodiment 1 of this application;

[0021] Figure 3 This is a schematic cross-sectional view of the ventilation mechanism in Embodiment 1 of this application;

[0022] Figure 4 This is a schematic diagram of the adjusting disc structure in Embodiment 1 of this application;

[0023] Figure 5 This is a schematic diagram of the support disk structure in Embodiment 1 of this application;

[0024] Figure 6 This is a schematic cross-sectional view of the shaking mechanism in Embodiment 1 of this application;

[0025] Figure 7 This is a schematic diagram of the floating mechanism structure in Embodiment 1 of this application;

[0026] Figure 8 This is a schematic diagram of the feeding assembly structure in Embodiment 2 of this application;

[0027] Figure 9 This is a schematic cross-sectional view of the storage cylinder in Embodiment 2 of this application;

[0028] Figure 10 This is a schematic diagram of the grinding mechanism structure in Embodiment 2 of this application;

[0029] Figure 11 This is a schematic diagram of the support block structure in Embodiment 2 of this application;

[0030] Figure 12 This is a schematic diagram of the feeding mechanism structure in Embodiment 2 of this application;

[0031] Figure 13 This is a schematic diagram of the connecting sleeve structure in Embodiment 2 of this application;

[0032] Figure 14 This is a schematic diagram of the connecting ring structure in Embodiment 2 of this application.

[0033] In the diagram: 1. Fermentation tank; 2. Top cover; 3. Ventilation mechanism; 31. Connecting pipe; 32. Baffle plate; 33. Ventilation plate; 34. First elastic rod; 35. First spring; 36. Ventilation pipe; 37. Ventilation hole; 4. Shaking assembly; 41. First motor; 42. Connecting rod; 43. First rotating rod; 44. Shaking mechanism; 441. Floating sleeve; 442. Shaking rod; 443. Limiting ring; 444. Floating ring; 445. First sliding rod; 446. Second spring; 45. Floating mechanism; 451. Support frame; 452. Limiting rod; 453. Third spring; 454. Protrusion; 455. Connecting strip; 456. Extrusion rod; 457. Rolling ball; 5. Feeding assembly; 51. Storage cylinder; 52. Chuck; 53. Second motor; 54. 55. Second rotating rod; 55. Grinding mechanism; 551. Rotating bar; 552. Connecting block; 553. First threaded rod; 554. Storage rod; 555. Lifting rod; 556. Slider; 557. Drive rod; 558. Adjusting block; 559. Drive groove; 5510. Connecting frame; 5511. Extrusion roller; 56. Filter screen; 57. Feeding mechanism; 571. Connecting plate; 572. First feeding cylinder; 573. Second feeding cylinder; 574. Connecting sleeve; 575. Adjusting block; 576. Second threaded rod; 577. Adjusting plate; 578. Connecting ring; 579. Second elastic rod; 5710. Fixing ring; 5711. Fourth spring; 5712. Extrusion ring; 5713. Protruding rod; 58. Support block; 6. Limiting block; 7. Support plate. Detailed Implementation

[0034] For situations where it is difficult to add yeast in a precise amount based on the quantity of glutinous rice, this invention uses a feeding component to precisely add yeast powder according to requirements, ensuring a precise and stable ratio of glutinous rice to yeast. For situations where the fermentation tank cannot evenly mix yeast with glutinous rice, this invention uses a shaking component to evenly mix yeast with glutinous rice, while employing gentle stirring to avoid damaging the glutinous rice during the stirring process.

[0035] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example 1:

[0036] Please see Figure 1 and Figure 2 As shown, a non-alcoholic fermentation tank for inhibiting alcohol production includes a fermentation tank body 1 and a top cover 2. The outer surface of the fermentation tank body 1 is equipped with an observation window and a temperature sensor for observing the internal conditions and temperature. The outer surface of the top cover 2 has two feed inlets, each secured with a blocking block. These blocks are opened during feeding and closed after feeding to ensure the overall airtightness of the fermentation tank body 1. The top of the fermentation tank body 1 is secured with the top cover 2, keeping the fermentation tank body 1 and the top cover 2 relatively fixed. Ventilation mechanisms 3 are provided on both outer surfaces of the fermentation tank body 1. A shaking assembly 4 is provided inside the fermentation tank body 1. A feeding assembly 5 is provided on the upper surface of the top cover 2. A limiting block 6 is fixedly installed on the inner wall of the tank 1. A support plate 7 is slidably connected to the inner cavity of the fermentation tank 1. The upper surface of the support plate 7 and the lower surface of the limiting block 6 are in close contact. First, high-quality glutinous rice is washed and soaked, and after fully absorbing water, it is steamed and placed in the inner cavity of the fermentation tank 1 to cool to a suitable temperature. Then, according to the weight of the glutinous rice, the yeast powder is precisely added through the feeding component 5, and the mixture is fully stirred in the fermentation tank 1 by the shaking component 4 to ensure that the bacteria are evenly distributed. The limiting block 6 is used to limit the support plate 7. During stirring, the support plate 7 slides up and down in the inner cavity of the fermentation tank 1 to keep the glutinous rice loose. The ventilation mechanism 3 is used to maintain good ventilation inside the fermentation tank 1.

[0037] Please see Figure 3 and Figure 4As shown, the ventilation mechanism 3 includes a connecting pipe 31, a shielding plate 32 fixedly installed in the inner cavity of the connecting pipe 31, a ventilation plate 33 slidably connected in the inner cavity of the connecting pipe 31, a first elastic rod 34 fixedly installed in the middle of the ventilation plate 33, a first spring 35 sleeved on the outer surface of the first elastic rod 34, a ventilation pipe 36 fixedly installed on the outer surface of the ventilation plate 33, and ventilation holes 37 opened on the outer surface of the ventilation pipe 36. The connecting pipe 31 is fixedly connected to the inner cavity of the fermentation tank 1, the ventilation pipe 36 is slidably connected to the shielding plate 32, the first spring 35 is located between the shielding plate 32 and the ventilation plate 33, and the ventilation holes 37 are located between the ventilation plate 33 and the shielding plate 32. The ventilation mechanism 3 ventilates the inner cavity of the fermentation tank 1. In the fermentation of non-alcoholic rice wine, ventilation is a key means to inhibit alcohol production and control the direction of fermentation. Filtered and sterilized clean air is introduced through the ventilation mechanism 3 at the top of the fermentation tank 1. The ventilation is intermittent. To avoid strong airflow disturbing the rice grain structure and ensure the integrity of the fermented gluten, clean air is introduced into the tank to maintain an aerobic environment, forcing the yeast to primarily metabolize aerobically, significantly reducing ethanol synthesis and blocking alcohol accumulation at the source. By placing the external pipe in the inner cavity of the connecting pipe 31 and tightly fitting it, the ventilation disc 33 is squeezed. At this time, the ventilation disc 33 squeezes the first spring 35, causing the first elastic rod 34 to slide in the inner cavity of the shielding disc 32. The movement of the ventilation disc 33 simultaneously drives the ventilation pipe 36 to slide in the inner cavity of the shielding disc 32, causing the ventilation hole 37 to move from the sandwich between the shielding disc 32 and the ventilation disc 33 to the inner cavity of the fermentation tank 1. The filtered and sterilized clean air then enters the inner cavity of the fermentation tank 1 through the ventilation pipe 36. Furthermore, the ventilation efficiency can be varied by different degrees of squeezing of the ventilation disc 33, which can stably maintain the oxygen content balance in the tank, ensuring sufficient saccharification and uniform temperature throughout the fermentation process.

[0038] Please see Figure 2 and Figure 5As shown, the shaking assembly 4 includes a first motor 41, which is a stepper motor to facilitate control of the rotation speed and frequency of the connecting rod 42. It stops working when the glutinous rice needs to be left to stand. It is typically used during the stirring of the yeast and ventilation processes. The connecting rod 42 is rotatably connected to the inner cavity of the top cover 2. The output end of the first motor 41 is sleeved with the connecting rod 42. A first rotating rod 43 is inserted into the end of the connecting rod 42 away from the first motor 41. A shaking mechanism 44 is sleeved on the outer surface of the first rotating rod 43. There are three shaking mechanisms 44. The first rotating rod 43 is rotatably connected to the support plate 7, and the support plate 7 can be mounted on the outer surface of the first rotating rod 43. The first rotating rod 43 slides vertically and is equipped with a floating mechanism 45 at its bottom. The first motor 41 drives the connecting rod 42 to rotate, which in turn drives the first rotating rod 43 to rotate. The rotation of the first rotating rod 43 drives the shaking mechanism 44 to stir and mix the glutinous rice and yeast. The shaking mechanism 44 uses gentle stirring to avoid damaging the glutinous rice. The floating mechanism 45 can drive the support plate 7 to slide in the inner cavity of the fermentation tank 1 to prevent the glutinous rice from settling. The gentle stirring ensures that the yeast and glutinous rice are fully dispersed and in uniform contact, preventing localized closed and anaerobic fermentation. At the same time, it promotes oxygen dissolution, maintains an overall aerobic state, and avoids localized alcohol production.

[0039] Please see Figure 5 , Figure 6 and Figure 7As shown, the shaking mechanism 44 includes a floating sleeve 441, a shaking rod 442 fixedly mounted on the outer surface of the floating sleeve 441, limit rings 443 provided at both ends of the floating sleeve 441, a floating ring 444 fixedly mounted in the middle of the floating sleeve 441, first sliding rods 445 fixedly mounted at both ends of the floating ring 444, a second spring 446 sleeved on the outer surface of the first sliding rod 445, the floating sleeve 441 and the limit rings 443 slidably connected, the limit rings 443 and the first rotating rod 43 fixedly connected, the floating rings 444 and the first rotating rod 43 not in contact, the second spring 446 is located between the floating rings 444 and the limit rings 443, the first sliding rods 445 and the limit rings 443 slidably connected, the floating mechanism 45 includes a support frame 451, the inner cavity of the support frame 451 A sliding connection is provided with a limiting rod 452, and a third spring 453 is sleeved on the outer surface of the limiting rod 452. A protrusion 454 is fixedly installed on the outer surface of the support frame 451. A connecting strip 455 is fixedly installed at the bottom end of the first rotating rod 43, and a pressing rod 456 is fixedly installed at both ends of the connecting strip 455. A ball bearing 457 is movably connected to the bottom end of the pressing rod 456. The bottom end of the limiting rod 452 is fixedly connected to the bottom wall of the fermentation tank 1. The third spring 453 is located between the support frame 451 and the bottom wall of the fermentation tank 1. There is a gap between the connecting strip 455 and the lower surface of the support plate 7, so that the support plate 7 can slide downward. After the raw materials are added, when the first rotating rod 43 rotates, the ball bearing 457 passes through the protrusion 454 and compresses the protrusion 454. The end and the lower surface of the support plate 7 are in close contact. When the shaking mechanism 44 is stirring and mixing, the floating sleeve 441 can slide on the limiting ring 443, so that the floating ring 444 moves between the two limiting rings 443. At this time, the first sliding rod 445 slides in the inner cavity of the limiting ring 443 and squeezes the second spring 446. In this way, the shaking rod 442 is flexibly fixed relative to the first rotating rod 43, thereby realizing flexible stirring and mixing. When adding yeast, flexible stirring can make the yeast powder fully contact and disperse evenly with glutinous rice, avoiding excessive alcohol production due to excessive concentration of local bacteria, and ensuring stable alcohol-free quality. Stirring during ventilation can make the temperature, dissolved oxygen, and sugar distribution in the tank more balanced, eliminating local overheating or oxygen deficiency areas. Flexible stirring does not crush the rice grains and keeps the fermented glutinous rice particles intact. The product is intact and the broth is clear, avoiding undesirable forms such as pasty or broken pieces, effectively improving the product qualification rate and quality stability. Simultaneously, the rotation of the first rotating rod 43 drives the connecting strip 455 to rotate, which in turn drives the extrusion rod 456 and the rolling ball 457 to rotate. This causes the rolling ball 457 to press against the protrusion 454. The pressure on the protrusion 454 causes the support frame 451 to slide on the limiting rod 452 and press against the third spring 453. At this time, the support plate 7 moves downwards. After the rolling ball 457 passes the protrusion 454, the elasticity of the third spring 453 causes the support frame 451 to return to its original position, resulting in a reciprocating up-and-down shaking effect within the fermentation tank 1. Combined with the stirring of the shaking mechanism 44, this ensures a more even mixing of the yeast and glutinous rice.This keeps the glutinous rice loose, improves ventilation, and maintains a stable fermentation temperature, thereby improving product quality. Example 2:

[0040] Please see Figure 8 and Figure 9 As shown, the feeding assembly 5 includes a storage cylinder 51, with a chuck 52 engaged at the top of the storage cylinder 51, maintaining a relatively fixed relationship between the storage cylinder 51 and the chuck 52 after engagement. A second motor 53 is provided on the outer surface of the chuck 52, and a second rotating rod 54 is rotatably connected to the inner cavity of the chuck 52. The second rotating rod 54 is rotatably connected to the storage cylinder 51, and a grinding mechanism 55 is sleeved on the outer surface of the second rotating rod 54. A filter screen 56 is provided in the inner cavity of the storage cylinder 51, and a feeding mechanism 57 is provided at the bottom end of the storage cylinder 51. A support block 58 is fixedly installed on the outer surface of the storage cylinder 51, and the support block 58 is fixedly connected to the upper surface of the top cover 2 and located directly above one of the feed inlets. Rotating rod 54 and filter screen 56 are rotatably connected. The output end of the second motor 53 is sleeved with the second rotating rod 54. The yeast powder is placed in the inner cavity of the storage cylinder 51 through the opening of the chuck 52. The filter screen 56 filters the yeast powder, leaving the unground yeast above the filter screen 56. The operation of the second motor 53 drives the second rotating rod 54 to rotate. The rotation of the second rotating rod 54 drives the grinding mechanism 55 to grind the granular yeast until it falls below the filter screen 56. The feeding mechanism 57 is used to quantitatively feed the yeast. During feeding, the blocking block on the top cover 2 is removed. The support block 58 is connected to the top cover 2 to keep the storage cylinder 51 fixed.

[0041] Please see Figure 9 and Figure 10As shown, the grinding mechanism 55 includes a rotating bar 551, a connecting block 552 fixedly mounted on the lower surface of the rotating bar 551, a first threaded rod 553 rotatably connected to the inner cavity of the connecting block 552, a receiving rod 554 fixedly mounted on the lower surface of the connecting block 552, a lifting rod 555 slidably connected to the inner cavity of the receiving rod 554, a slider 556 slidably connected to the lower surface of the connecting block 552, a drive rod 557 fixedly mounted on the outer surface of the slider 556, and an adjusting block fixedly mounted at the bottom end of the lifting rod 555. 558, the outer surface of the adjusting block 558 has a drive groove 559, the drive rod 557 is slidably connected to the drive groove 559, the slider 556 and the first threaded rod 553 are connected by threads, the lower surface of the adjusting block 558 is fixedly mounted with a connecting frame 5510, the inner cavity of the connecting frame 5510 is rotatably connected to a squeezing roller 5511, the rotating bar 551 and the second rotating rod 54 are fixedly connected, there is a gap between the squeezing roller 5511 and the upper surface of the filter screen 56, so as to remove the residual yeast particles above the filter screen 56. During grinding, the distance between the extrusion roller 5511 and the upper surface of the filter screen 56 can be adjusted according to the quantity and size of the retained yeast. By rotating the first threaded rod 553, the slider 556 is driven to slide. The movement of the slider 556 drives the drive rod 557 to slide in the inner cavity of the drive groove 559, so that the lifting rod 555 slides in the inner cavity of the receiving rod 554. This changes the distance between the adjusting block 558 and the connecting block 552, and changes the height of the connecting frame 5510. At this time, the distance between the extrusion roller 5511 and the filter screen 56 is adjusted. When the second rotating rod 54 rotates, it can drive the rotating bar 551 to rotate. The rotation of the rotating bar 551 drives the extrusion roller 5511 to rotate and squeeze the yeast particles above the filter screen 56, so that the yeast has a grinding effect. Finally, the granular yeast is ground into powder and falls below the filter screen 56 for subsequent feeding. This ensures that the added yeast dissolves and activates at the same rate, guarantees the uniformity of fermentation, and improves the quality consistency and production stability of the alcohol-free mash.

[0042] Please see Figure 11 , Figure 12 , Figure 13 and Figure 14As shown, the feeding mechanism 57 includes a connecting plate 571, a first feeding cylinder 572 fixedly connected to the inner cavity of the connecting plate 571, a second feeding cylinder 573 slidably connected to the inner cavity of the first feeding cylinder 572, a connecting sleeve 574 fixedly connected to the outer surface of the second feeding cylinder 573, an adjusting block 575 fixedly installed at the bottom end of the storage cylinder 51, a second threaded rod 576 rotatably connected to the inner cavity of the adjusting block 575, an adjusting plate 577 slidably connected to the outer surface of the adjusting block 575, a connecting ring 578 fixedly installed on the outer surface of the first feeding cylinder 572, a second elastic rod 579 slidably connected to the inner cavity of the connecting ring 578, a fixing ring 5710 fixedly installed on the outer surface of the second elastic rod 579, and a fourth... A spring 5711 is used. A compression ring 5712 is fixedly installed at the bottom of the storage cylinder 51. Protrusions 5713 are evenly arranged on the inner wall of the compression ring 5712. The fourth spring 5711 is located between the connecting ring 578 and the fixed ring 5710. The inner walls of the fixed ring 5710 and the connecting ring 578 are in close contact. One end of the second elastic rod 579 is rounded. The connecting plate 571 and the bottom wall of the storage cylinder 51 are rotatably connected. The end of the connecting sleeve 574 away from the second feeding cylinder 573 is slidably connected to the second rotating rod 54. At the same time, the second rotating rod 54 can drive the connecting sleeve 574 to rotate. The bottom end of the connecting sleeve 574 and the upper surface of the adjusting plate 577 are always rotatably connected. In this way, when the second rotating rod 54 rotates, the connecting sleeve 574 can be adjusted. The rotating disc 577 causes the second feeding cylinder 573 to slide on the adjusting disc 577. Simultaneously, when adjusting the position of the second feeding cylinder 573 within the inner cavity of the first feeding cylinder 572, the second feeding cylinder 573 remains tightly fitted to the upper surface of the adjusting disc 577. When the adjusting disc 577 is hollowed out, the yeast in the inner cavities of the first feeding cylinder 572 and the second feeding cylinder 573 can be fed. The bottom end of the second feeding cylinder 573 is slidably connected to the upper surface of the adjusting disc 577, and the two surfaces are tightly fitted. A feeding hole is provided at the bottom end of the storage cylinder 51. When the first feeding cylinder 572 rotates, its top end aligns with the feeding hole of the storage cylinder 51. The outer surfaces of the first feeding cylinder 572 and the second feeding cylinder 573... Both surfaces are equipped with scale lines. The first feeding cylinder 572 and the second feeding cylinder 573 are made of transparent material, which facilitates the observation of the quantitative feeding of the yeast in conjunction with the scale lines. The adjusting disc 577 and the second threaded rod 576 are connected by threads. When the second rotating rod 54 rotates, the rounded end of the second elastic rod 579 contacts the protruding rod 5713 and squeezes the second elastic rod 579. During the squeezing process, the other end of the second elastic rod 579 contacts the outer surface of the first feeding cylinder 572. When feeding, the rotation of the second rotating rod 54 drives the connecting sleeve 574 to rotate, and the rotation of the connecting sleeve 574 drives the first feeding cylinder 572 and the second feeding cylinder 573 to rotate, keeping the top of the first feeding cylinder 572 aligned with the bottom feeding hole of the storage cylinder 51.The yeast in the inner cavity of the storage cylinder 51 is fed into the first feeding cylinder 572 and the second feeding cylinder 573 until they are full. The second rotation rod 54 rotates again, causing the first feeding cylinder 572 and the second feeding cylinder 573 to rotate again. At the same time, the rotation of the first feeding cylinder 572 drives the connecting plate 571 to rotate at the bottom end of the storage cylinder 51, so that the connecting plate 571 blocks the feeding hole at the bottom end of the storage cylinder 51 to prevent the yeast powder from leaking. During the rotation of the first feeding cylinder 572, the connecting ring 578 is driven to rotate. The rotation of the connecting ring 578 causes the second elastic rod 579 and the protrusion 5713 on the extrusion ring 5712 to compress each other, so that the second elastic rod 579 slides in the inner cavity of the connecting ring 578 and strikes the first feeding cylinder 572. At the same time, the fixing ring 5710 compresses the fourth spring 5711. Under the elastic force of 5711, the second elastic rod 579 quickly returns to its original position. This allows the second elastic rod 579 to continuously tap the outer surface of the first feeding cylinder 572 as the second feeding cylinder 573 passes through the hollowed-out area of ​​the adjusting plate 577. This prevents yeast powder from remaining on the inner walls of the first and second feeding cylinders 572 and 573, improving the accuracy of yeast dispensing. Rotating the second threaded rod 576 causes the adjusting plate 577 to slide on the adjusting block 575. At this time, the second feeding cylinder 573 slides inside the first feeding cylinder 572, causing a change in the capacity of both cylinders. This allows for adjustment of the yeast dispensing amount as needed, ensuring a precise and stable ratio of glutinous rice to yeast, keeping saccharification and fermentation in optimal condition, resulting in consistent fermentation speed, uniform sweetness, and significantly improved product qualification rate.

[0043] In summary, the rice is placed inside fermentation tank 1 and cooled to a suitable temperature. Then, yeast powder is precisely added according to the weight of the glutinous rice using the feeding component 5. The mixture is then thoroughly stirred inside fermentation tank 1 using the shaking component 4 to ensure even distribution of the yeast. The limiting block 6 is used to limit the support plate 7, allowing it to slide up and down within the fermentation tank 1 during stirring, keeping the glutinous rice loose. The ventilation mechanism 3 maintains good ventilation inside fermentation tank 1. Ventilation through the ventilation mechanism 3 helps inhibit alcohol production during non-alcoholic fermentation of rice wine mash. The key means of controlling the fermentation direction is to introduce filtered and sterilized clean air through the ventilation mechanism 3 at the top of the fermentation tank 1. The ventilation is intermittent to avoid strong airflow disturbing the rice grain structure and to ensure the integrity of the fermented mash. By placing the external pipe in the inner cavity of the connecting pipe 31 and making it tightly fitted to the inner cavity of the connecting pipe 31, the ventilation disc 33 is squeezed. At this time, the ventilation disc 33 squeezes the first spring 35, causing the first elastic rod 34 to slide in the inner cavity of the shielding disc 32. The movement of the ventilation disc 33 simultaneously drives the ventilation pipe 36 to slide in the inner cavity of the shielding disc 32, so that the ventilation hole 37 exits from the shielding disc 32. The air moves from the interlayer between the ventilation disc 33 and the ventilator 2 to the inner cavity of the fermentation tank 1. The filtered and sterilized clean air then enters the inner cavity of the fermentation tank 1 through the ventilation pipe 36. The ventilation efficiency can be varied by different degrees of compression of the ventilation disc 33. The operation of the first motor 41 drives the connecting rod 42 to rotate, which in turn drives the first rotating rod 43 to rotate. The rotation of the first rotating rod 43 drives the shaking and mixing mechanism 44 to stir and mix the glutinous rice and yeast, etc. The shaking and mixing mechanism 44 uses gentle stirring to avoid damaging the glutinous rice. The floating mechanism 45 can drive the support disc... 7. Slides within the inner cavity of fermentation tank 1 to prevent glutinous rice from settling. Places yeast powder into the inner cavity of storage cylinder 51 through the opening of chuck 52. Filter screen 56 filters the yeast powder, leaving unground yeast above filter screen 56. The second motor 53 drives the second rotating rod 54 to rotate, which in turn drives the grinding mechanism 55 to grind the granular yeast until it falls below filter screen 56. Feeding mechanism 57 is used to quantitatively feed yeast. Support block 58 is connected to top cover 2 to keep storage cylinder 51 fixed.

[0044] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0045] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A non-alcoholic fermentation tank for inhibiting alcohol production, comprising a fermentation tank body (1) and a top cover (2), wherein the outer surface of the top cover (2) has two feed inlets, and each feed inlet is fitted with a blocking block, characterized in that, The top of the fermentation tank (1) is fitted with a top cover (2), and ventilation mechanisms (3) are provided on the outer surfaces of both sides of the fermentation tank (1). A shaking component (4) is provided in the inner cavity of the fermentation tank (1). A feeding component (5) is provided on the upper surface of the top cover (2). A limiting block (6) is fixedly installed on the inner wall of the fermentation tank (1). A support plate (7) is slidably connected to the inner cavity of the fermentation tank (1). The upper surface of the support plate (7) and the lower surface of the limiting block (6) are in close contact. The feeding assembly (5) includes a storage cylinder (51), a chuck (52) is engaged at the top of the storage cylinder (51), a second motor (53) is provided on the outer surface of the chuck (52), a second rotating rod (54) is rotatably connected to the inner cavity of the chuck (52), the second rotating rod (54) is rotatably connected to the storage cylinder (51), a grinding mechanism (55) is sleeved on the outer surface of the second rotating rod (54), a filter screen (56) is provided in the inner cavity of the storage cylinder (51), a feeding mechanism (57) is provided at the bottom end of the storage cylinder (51), a support block (58) is fixedly installed on the outer surface of the storage cylinder (51), the support block (58) is fixedly connected to the upper surface of the top cover (2) and is located directly above one of the feed inlets, the second rotating rod (54) is rotatably connected to the filter screen (56), and the output end of the second motor (53) is sleeved with the second rotating rod (54).

2. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 1, characterized in that, The grinding mechanism (55) includes a rotating bar (551), a connecting block (552) fixedly mounted on the lower surface of the rotating bar (551), a first threaded rod (553) rotatably connected to the inner cavity of the connecting block (552), a storage rod (554) fixedly mounted on the lower surface of the connecting block (552), a lifting rod (555) slidably connected to the inner cavity of the storage rod (554), a slider (556) slidably connected to the lower surface of the connecting block (552), a drive rod (557) fixedly mounted on the outer surface of the slider (556), and the bottom end of the lifting rod (555) An adjusting block (558) is fixedly installed. A drive groove (559) is opened on the outer surface of the adjusting block (558). The drive rod (557) and the drive groove (559) are slidably connected. The slider (556) and the first threaded rod (553) are connected by threads. A connecting frame (5510) is fixedly installed on the lower surface of the adjusting block (558). A squeezing roller (5511) is rotatably connected to the inner cavity of the connecting frame (5510). The rotating bar (551) and the second rotating rod (54) are fixedly connected. There is a gap between the squeezing roller (5511) and the upper surface of the filter screen (56).

3. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 1, characterized in that, The feeding mechanism (57) includes a connecting plate (571), a first feeding cylinder (572) is fixedly connected to the inner cavity of the connecting plate (571), a second feeding cylinder (573) is slidably connected to the inner cavity of the first feeding cylinder (572), a connecting sleeve (574) is fixedly connected to the outer surface of the second feeding cylinder (573), an adjusting block (575) is fixedly installed at the bottom end of the storage cylinder (51), a second threaded rod (576) is rotatably connected to the inner cavity of the adjusting block (575), and the outer surface of the adjusting block (575) is slidably connected to... There is an adjusting disc (577), a connecting ring (578) is fixedly installed on the outer surface of the first feeding cylinder (572), a second elastic rod (579) is slidably connected to the inner cavity of the connecting ring (578), a fixing ring (5710) is fixedly installed on the outer surface of the second elastic rod (579), a fourth spring (5711) is sleeved on the outer surface of the fixing ring (5710), a compression ring (5712) is fixedly installed at the bottom end of the storage cylinder (51), and protrusions (5713) are evenly arranged on the inner wall of the compression ring (5712).

4. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 3, characterized in that, The fourth spring (5711) is located between the connecting ring (578) and the fixed ring (5710). The inner walls of the fixed ring (5710) and the connecting ring (578) are in close contact. One end of the second elastic rod (579) is rounded. The connecting plate (571) and the bottom wall of the storage cylinder (51) are rotatably connected. The end of the connecting sleeve (574) away from the second feeding cylinder (573) is slidably connected to the second rotating rod (54). The bottom end of the connecting sleeve (574) and the upper surface of the adjusting plate (577) are always rotatably connected. The bottom end of the second feeding cylinder (573) and the upper surface of the adjusting plate (577) are slidably connected. The upper surface of the first feeding cylinder (572) and the adjusting plate (577) are closely fitted. The bottom end of the storage cylinder (51) is provided with a feeding hole. When the first feeding cylinder (572) rotates, its top end is aligned with the feeding hole of the storage cylinder (51). The outer surfaces of the first feeding cylinder (572) and the second feeding cylinder (573) are both provided with scale lines. The adjusting plate (577) and the second threaded rod (576) are connected by threads. When the second rotating rod (54) rotates, the rounded end of the second elastic rod (579) contacts the protruding rod (5713) and squeezes the second elastic rod (579). During the squeezing process, the other end of the second elastic rod (579) contacts the outer surface of the first feeding cylinder (572).

5. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 1, characterized in that, The ventilation mechanism (3) includes a connecting pipe (31), a shielding plate (32) is fixedly installed in the inner cavity of the connecting pipe (31), a ventilation plate (33) is slidably connected in the inner cavity of the connecting pipe (31), a first elastic rod (34) is fixedly installed in the middle part of the ventilation plate (33), a first spring (35) is sleeved on the outer surface of the first elastic rod (34), a ventilation pipe (36) is fixedly installed on the outer surface of the ventilation plate (33), a ventilation hole (37) is opened on the outer surface of the ventilation pipe (36), the connecting pipe (31) is fixedly connected to the inner cavity of the fermentation tank (1), the ventilation pipe (36) and the shielding plate (32) are slidably connected, the first spring (35) is located between the shielding plate (32) and the ventilation plate (33), and the ventilation hole (37) is located between the ventilation plate (33) and the shielding plate (32).

6. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 1, characterized in that, The shaking assembly (4) includes a first motor (41), and a connecting rod (42) is rotatably connected to the inner cavity of the top cover (2). The output end of the first motor (41) is sleeved with the connecting rod (42). A first rotating rod (43) is inserted and connected to the end of the connecting rod (42) away from the first motor (41). A shaking mechanism (44) is sleeved on the outer surface of the first rotating rod (43). There are three shaking mechanisms (44). The first rotating rod (43) is rotatably connected to the support plate (7), and the support plate (7) can slide in the up and down direction on the outer surface of the first rotating rod (43). A floating mechanism (45) is provided at the bottom end of the first rotating rod (43).

7. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 6, characterized in that, The shaking mechanism (44) includes a floating sleeve (441), a shaking rod (442) is fixedly installed on the outer surface of the floating sleeve (441), limit rings (443) are provided at both ends of the floating sleeve (441), a floating ring (444) is fixedly installed in the middle part of the floating sleeve (441), a first slide rod (445) is fixedly installed at both ends of the floating ring (444), and a second spring (446) is sleeved on the outer surface of the first slide rod (445).

8. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 7, characterized in that, The floating sleeve (441) and the limiting ring (443) are slidably connected, the limiting ring (443) and the first rotating rod (43) are fixedly connected, the floating ring (444) and the first rotating rod (43) are not in contact, the second spring (446) is located between the floating ring (444) and the limiting ring (443), and the first sliding rod (445) and the limiting ring (443) are slidably connected.

9. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 6, characterized in that, The floating mechanism (45) includes a support frame (451), a limit rod (452) is slidably connected to the inner cavity of the support frame (451), a third spring (453) is sleeved on the outer surface of the limit rod (452), a protrusion (454) is fixedly installed on the outer surface of the support frame (451), a connecting strip (455) is fixedly installed at the bottom end of the first rotating rod (43), a pressing rod (456) is fixedly installed at both ends of the connecting strip (455), and a ball (457) is movably connected to the bottom end of the pressing rod (456).

10. The non-alcoholic fermentation tank for inhibiting alcohol production as described in claim 9, characterized in that, The bottom end of the limiting rod (452) is fixedly connected to the bottom wall of the fermentation tank (1). The third spring (453) is located between the support frame (451) and the bottom wall of the fermentation tank (1). There is a gap between the connecting strip (455) and the lower surface of the support plate (7). When the first rotating rod (43) rotates, the ball (457) passes through the protrusion (454) and squeezes the protrusion (454). The two ends of the support frame (451) are in close contact with the lower surface of the support plate (7).

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