An online monitoring temperature-controlled rice wine production device

Abstract

The present application relates to rice wine production technical field, specifically to a kind of on-line monitoring temperature control rice wine production device, including the storage tank for containing rice wine fermentation material, the storage tank is rotatably installed on fixed frame, first stirring mode driving assembly for driving the overall rotation of storage tank is provided on the storage tank, and second stirring mode driving assembly for driving the independent rotation of internal stirring element of storage tank.The present application is switched by being provided with two kinds of stirring mode, the all-round mixing of fermentation material is realized.Overall rotation mode makes the material in storage tank overall tumble, is suitable for initial rice and koji fast mixing;Internal helical blade independent rotation mode makes material in storage tank bidirectional convection along axial direction, is suitable for fine mixing during fermentation;Two kinds of mode alternate operation can produce complex material flow, effectively break up agglomerate, ensure that koji is evenly distributed.

Description

Technical Field

[0001] This invention relates to the field of rice wine production technology, specifically to an online monitoring and temperature control rice wine production device, which is particularly suitable for processes such as mixing rice and yeast, fermentation and stirring, and filtering and extracting wine in the process of brewing intangible cultural heritage handmade rice wine. Background Technology

[0002] Rice wine is a traditional fermented alcoholic beverage made primarily from glutinous rice through processes such as steaming, mixing with yeast, and fermentation. In the production process, steamed rice is cooled and then mixed evenly with yeast in a specific ratio before being placed in a fermentation container for saccharification and alcoholic fermentation. During fermentation, to ensure sufficient contact between the microorganisms in the yeast and the rice, and to accelerate the fermentation process, the fermentation materials are typically stirred periodically.

[0003] The existing rice wine production equipment has the following technical defects: First, uneven mixing. Traditional manual mixing methods are inefficient and labor-intensive, while existing mechanical stirring devices mostly use single-shaft stirring blades, which easily leads to uneven distribution of yeast. Some areas have too much yeast, resulting in over-fermentation, while other areas have too little yeast, resulting in insufficient fermentation, thus affecting the consistency of rice wine quality.

[0004] Secondly, the fermentation process is difficult to stir. During the fermentation of rice wine, the material gradually softens and produces liquid. Traditional stirring tools are difficult to reach the bottom of the material to stir it evenly, and the stirring process can easily damage the structure of the rice grains, affecting the taste.

[0005] Third, oxygen control is not precise. In the early stages of rice wine fermentation, a suitable amount of oxygen is needed to promote the reproduction of yeast in the starter culture, while in the later stages, an anaerobic environment is required for alcoholic fermentation. Existing equipment lacks precise means of regulating the oxygen supply, often relying on simple ventilation by opening the lid, which is inconvenient to operate and difficult to quantify.

[0006] Fourth, temperature control is lacking. Rice wine fermentation is sensitive to temperature, with the optimal fermentation temperature typically between 25°C and 30°C. Temperatures that are too high or too low will affect the fermentation speed and the flavor of the rice wine. Existing small-scale rice wine production facilities lack online temperature monitoring and active temperature control functions.

[0007] Fifth, filtering and extracting the wine is inconvenient. After fermentation, the rice wine liquid needs to be separated from the lees. Traditional methods use gauze filtration or pressing, which is cumbersome and easily introduces unwanted bacteria.

[0008] Therefore, developing a rice wine production device that integrates mixing, fermentation, stirring, temperature control, and filtration is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0009] The purpose of this invention is to provide an online monitoring and temperature control rice wine production device, which aims to solve the technical problems in the existing rice wine production process, such as uneven mixing of rice and yeast, difficulty in fermentation and stirring, inability to finely adjust oxygen supply, lack of temperature control, and inconvenience in filtering and extracting wine.

[0010] To achieve the above objectives, the present invention provides the following technical solution: an online monitoring and temperature-controlled rice wine production device, comprising a storage box for holding rice wine fermentation materials, the storage box being rotatably mounted on a fixed frame, the storage box being provided with a first stirring mode driving component for driving the storage box to rotate as a whole, and a second stirring mode driving component for driving the internal stirring element of the storage box to rotate independently; a mode switching mechanism is provided between the first stirring mode driving component and the second stirring mode driving component, for selectively causing the storage box to rotate as a whole or causing the internal stirring element to rotate independently, or causing the two to alternate according to a set timing sequence.

[0011] The storage box has a filter port on its side, and a detachable filter plate is provided at the filter port. An adjustable cover plate is provided on the outside of the filter plate to control the effective filtration area of ​​the filter port, thereby regulating the oxygen supply during the fermentation process.

[0012] The storage box is equipped with a temperature sensor to monitor the fermentation temperature in real time, so as to maintain a suitable fermentation temperature environment in conjunction with the external temperature control device.

[0013] Furthermore, the storage box is fixedly connected to a frame on both sides, and a support frame is fixedly connected to the frame. A first electromagnet is embedded in the support frame. The first electromagnet magnetically engages with the fixed frame to fix the storage box relative to the fixed frame when energized. The storage box is rotatably connected to the fixed support on the fixed frame via connecting shafts on both sides. A handle is fixedly connected to the end of one of the connecting shafts for manually driving the storage box to rotate.

[0014] Furthermore, a drive shaft is rotatably connected inside the storage box, and both ends of the drive shaft are fixedly connected to the connecting shaft. Spiral blades with opposite directions are arranged on both sides of the drive shaft with the center as the symmetrical point. A second electromagnet is built into the connection between the storage box and the drive shaft. The drive shaft is made of magnetic metal material and is used to fix the drive shaft and the storage box relative to each other when the second electromagnet is energized.

[0015] Furthermore, the mode switching mechanism includes a first electromagnet and a second electromagnet, as well as a controller for controlling the on / off state of both; when the first electromagnet is energized and attracts the fixing frame while the second electromagnet is de-energized, the drive shaft can rotate independently relative to the storage box; when the first electromagnet is de-energized and the second electromagnet is energized, the storage box and the drive shaft are relatively fixed and rotate as a whole; when the two are alternately energized and de-energized at a set time interval, the overall rotation of the storage box and the independent rotation of the internal spiral blades alternate.

[0016] Furthermore, L-shaped locking plates are fixedly connected to the surface of the skeleton on both sides of the filter plate, and the cover plate is slidably inserted between the two locking plates. The size of the cover plate is larger than that of the filter plate, and a rubber pad is fixed to the side of the cover plate adjacent to the filter plate.

[0017] Furthermore, a collection tray is fixedly connected at an angle inside the fixed frame at the lower side of the storage box, and a discharge port is provided at the lower end of the collection tray for collecting the filtered rice wine liquid.

[0018] Furthermore, the fixing frame is made of magnetic metal material, and the bottom of the storage box is provided with heating and cooling elements. The heating and cooling elements are electrically connected to a temperature sensor and an external controller to automatically adjust the fermentation temperature according to the feedback signal from the temperature sensor.

[0019] Furthermore, a sealing ring is provided at the connection between the drive shaft and the storage box to prevent leakage of fermentation materials.

[0020] Furthermore, the storage box is equipped with a removable filter plate at the filter port, and the filter plate has multiple filter holes evenly distributed on it.

[0021] Furthermore, the device also includes a control panel, which is electrically connected to a temperature sensor, a first electromagnet, a second electromagnet, a heating element, and a cooling element, for displaying real-time temperature and setting fermentation parameters.

[0022] Compared with the prior art, the beneficial effects of the present invention are: First, this invention achieves comprehensive mixing of fermentation materials by setting two switchable stirring modes. The overall rotation mode causes the materials in the storage tank to tumble as a whole, which is suitable for rapid mixing of rice and yeast in the initial stage; the independent rotation mode of the internal spiral blades causes the materials to flow bidirectionally along the axis in the storage tank, which is suitable for fine stirring during the fermentation process; the alternation of the two modes can generate complex material flow, effectively breaking up clumps and ensuring uniform distribution of yeast.

[0023] Secondly, this invention achieves precise control over the oxygen supply during fermentation by installing an adjustable cover at the filter inlet. In the early stages of fermentation, the cover can be fully opened to ensure sufficient oxygen for yeast reproduction; in the later stages, the cover can be completely closed to create an anaerobic environment for alcoholic fermentation; it can also be adjusted to the intermediate position as needed to achieve microaerobic fermentation. The operation is simple and the control is precise.

[0024] Third, this invention integrates a temperature sensor and heating / cooling elements, which can monitor the fermentation temperature in real time and automatically adjust it to maintain the optimal fermentation temperature environment, significantly improving the consistency and stability of rice wine quality.

[0025] Fourth, after fermentation is complete, the rice wine liquid can be automatically discharged through the filter plate to the collection tray simply by opening the cover and tilting the storage box, achieving rapid separation of the wine liquid and the lees without the need for additional filtration, thus avoiding contamination by miscellaneous bacteria.

[0026] Fifth, the present invention has a compact structure and is easy to operate. It supports both manual stirring (via handle) and electric stirring (via electromagnet switching), making it suitable for the intangible cultural heritage of handmade rice wine brewing. It can significantly improve the production efficiency and quality of rice wine. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the filter plate and cover plate of the present invention; Figure 5 This is a cross-sectional view of the internal structure of the storage box of the present invention.

[0029] Explanation of reference numerals in the attached figures: 1. Storage box; 2. Frame; 3. Support frame; 4. Electromagnet; 5. Handle; 6. Fixed support; 7. Connecting shaft; 8. Fixed frame; 9. Collection tray; 10. Filter plate; 11. Temperature sensor; 12. Cover plate; 13. Clamping plate; 14. Drive shaft; 15. Spiral blade. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1 to 5 The present invention provides a technical solution: an online monitoring and temperature control device for rice wine production.

[0032] I. Overall Structure

[0033] The device includes a storage box 1 for holding rice, yeast, and the rice wine mixture produced during fermentation. The storage box 1 is cylindrical or ellipsoidal in shape, providing good sealing and hygiene. A frame 2, a metal frame, is fixedly connected to both sides of the storage box 1 for supporting and connecting other components. A support frame 3, which is plate-shaped or arm-shaped, is fixedly connected to the outer side of the frame 2.

[0034] A mounting frame 8 is located below the storage box 1, serving as the base of the entire device. The mounting frame 8 is made of a magnetically pleasing metal material (such as iron). The storage box 1 is rotatably connected to the mounting supports 6 on the mounting frame 8 via connecting shafts 7 on the left and right sides. Specifically, the mounting supports 6 are fixedly installed on both sides of the mounting frame 8, and the connecting shafts 7 pass through the mounting supports 6 and can rotate freely within them. A handle 5 is fixedly connected to the outer end of the connecting shaft 7 on the left side for manual rotation.

[0035] II. Mixing System and Mode Switching Mechanism

[0036] A drive shaft 14 is rotatably connected to the interior of storage tank 1 along its axial direction. The left and right ends of the drive shaft 14 are fixedly connected to connecting shafts 7 on both sides, forming a single rotating shaft. The outer surface of the drive shaft 14 is symmetrical about its midpoint, with helical blades 15 on both sides exhibiting opposite helical directions. Specifically, the left helical blade 15 heaves clockwise, and the right helical blade 15 heaves counterclockwise. When the drive shaft 14 rotates, the helical blades 15 on both sides push the material towards the center, achieving bidirectional convection mixing.

[0037] A second electromagnet 4 (not shown separately in the figure, but the same component as the first electromagnet 4) is installed at the connection between the storage box 1 and the drive shaft 14 (i.e., at the center hole of the left and right end caps of the storage box 1). The drive shaft 14 is made of a magnetic metal material (such as iron or steel). When the second electromagnet 4 is energized, the magnetic force it generates attracts and fixes the drive shaft 14, preventing relative rotation between the drive shaft 14 and the storage box 1; when the second electromagnet 4 is de-energized, the drive shaft 14 can rotate freely inside the storage box 1.

[0038] A first electromagnet 4 is embedded in the support frame 3 of the skeleton 2. The first electromagnet 4 is located below the support frame 3, directly opposite the upper surface of the fixed frame 8. When the first electromagnet 4 is energized, its magnetic force attracts the fixed frame 8, preventing the storage box 1 from rotating relative to the fixed frame 8 (i.e., the storage box 1 is locked to the fixed frame 8); when the first electromagnet 4 is de-energized, the storage box 1 can rotate freely.

[0039] The first electromagnet 4 and the second electromagnet 4 together constitute a mode switching mechanism, whose power-on / off state is controlled by an external controller (which can be integrated into the control panel). The controller can be a microcontroller or a PLC, supporting both manual button control and automatic program control.

[0040] The three working modes are as follows: Mode 1 (Internal Stirring Mode): The first electromagnet 4 is energized (storage tank 1 is locked), and the second electromagnet 4 is de-energized (drive shaft 14 can rotate freely). At this time, by rotating the connecting shaft 7 through the handle 5, the connecting shaft 7 drives the drive shaft 14 to rotate, and the spiral blades 15 on the drive shaft 14 rotate relative to the stationary storage tank 1, performing axial convection stirring of the internal materials.

[0041] Mode 2 (Overall Tumbling Mode): The first electromagnet 4 is de-energized (storage box 1 can rotate freely), and the second electromagnet 4 is energized (drive shaft 14 is fixed relative to storage box 1). At this time, by rotating the connecting shaft 7 through the handle 5, the connecting shaft 7 drives the drive shaft 14, and the drive shaft 14 drives the entire storage box 1 to rotate together through the magnetic force of the second electromagnet 4, so that the material in the storage box 1 is tumbling and mixed together.

[0042] Mode 3 (Alternating Mode): The controller alternately switches the energization status of the first electromagnet 4 and the second electromagnet 4 at set time intervals (e.g., every 10 seconds). When the first electromagnet 4 is energized, the storage tank 1 is locked, and the drive shaft 14 rotates independently; when the second electromagnet 4 is energized, the drive shaft 14 is fixed to the storage tank 1, and the entire unit rotates. The two actions alternate, causing the material to be simultaneously subjected to axial convection and overall tumbling, resulting in optimal mixing.

[0043] III. Filtration and Oxygen Regulation System

[0044] A filter port (not separately labeled in the figure) is provided on the side of the storage box 1, and a removable filter plate 10 is installed at the filter port. Multiple filter holes are evenly distributed on the filter plate 10, with a diameter of about 0.5 mm to 2 mm, which allows rice wine liquid to pass through while blocking rice grains and lees.

[0045] On the outer side of the filter plate 10, two L-shaped locking plates 13 are fixedly connected to the frame 2, located on the left and right sides of the filter plate 10 respectively. A sliding groove is formed between the two locking plates 13, and the cover plate 12 is inserted into the sliding groove and can slide up and down. The size of the cover plate 12 is larger than the size of the filter plate 10, and a rubber gasket is fixed on the side of the cover plate 12 facing the filter plate 10 to achieve a seal when the cover plate 12 completely covers the filter plate 10.

[0046] By sliding the cover plate 12, the number of filter holes exposed on the filter plate 10 can be adjusted, thereby controlling the amount of gas exchange between the storage tank 1 and the outside. In the early stage of fermentation, the cover plate 12 is slid upward to expose most of the filter holes to ensure a sufficient oxygen supply; in the later stage of fermentation, the cover plate 12 is slid downward to completely cover the filter plate 10 to create an anaerobic environment; when it is necessary to filter and extract wine, the cover plate 12 is fully opened.

[0047] IV. Temperature Control System

[0048] A temperature sensor 11 is installed inside the storage tank 1 to monitor the temperature of the fermentation material in real time. The signal line of the temperature sensor 11 can be led out to an external controller through the hollow structure of the connecting shaft 7.

[0049] The bottom (or outer wall) of storage tank 1 is equipped with heating elements (such as electric heating film or PTC heater) and cooling elements (such as thermoelectric coolers), both of which are electrically connected to an external controller. The controller compares the temperature signal fed back by temperature sensor 11 with the set target temperature (such as 28°C): when the temperature is lower than the lower limit of the set value, the heating element is activated; when the temperature is higher than the upper limit of the set value, the cooling element is activated. For rice wine fermentation, the target temperature is usually set to 25°C to 30°C.

[0050] V. Material Collection and Distillation System

[0051] The fixed frame 8 is located below the storage box 1 and is fixedly connected to a collection tray 9 at an angle. The angle of inclination of the collection tray 9 is approximately 15 to 30 degrees, and a discharge port is provided at its lower end. When wine needs to be taken out, the cover plate 12 is opened, and then the storage box 1 is rotated to the position with the filter port facing down by using the handle 5. The rice wine liquid flows out through the filter plate 10 and falls into the collection tray 9, collecting along the inclined surface of the collection tray 9 to the discharge port, and is collected through a pipe or container.

[0052] VI. Working Principle

[0053] The working principle of the online monitoring and temperature control rice wine production device of the present invention is as follows: Step 1: Adding ingredients and initial mixing. Add the cooked and cooled rice and yeast to storage box 1 in the correct proportions. Completely close the lid 12 (covering the filter plate 10) to prevent material leakage. Select mode two (overall tumbling mode) and manually rotate storage box 1 for several minutes using handle 5 to initially mix the rice and yeast evenly.

[0054] The second step is the early stage of fermentation (aerobic stage). Slide the cover plate 12 upwards to expose part of the filter holes and maintain an appropriate oxygen supply. Place the device in a suitable environment, turn on the temperature control system, and set the fermentation temperature to 28℃. Select mode one (internal stirring mode) or mode three (alternating mode) to stir the material 1 to 2 times a day, each time for 5 to 10 minutes, to promote the even distribution and reproduction of microorganisms in the yeast.

[0055] The third step is the later stage of fermentation (anaerobic stage). When the material is observed to soften significantly and produce an aroma of alcohol, completely close the lid 12 to block oxygen from entering. Continue to maintain temperature control and reduce the frequency of stirring to once every 2 to 3 days until fermentation is complete.

[0056] Step 4: Collecting the wine. After fermentation is complete, open the cover 12, rotate the storage tank 1 so that the filter opening faces downwards, and the rice wine liquid will automatically filter and flow out into the collection tray 9, where it will be collected from the outlet. The remaining lees can be cleaned out through the opening of the storage tank 1.

[0057] Step 5: Cleaning. After use, fill storage tank 1 with clean water, select the alternating mode for cleaning, then drain the wastewater and let it air dry for later use.

[0058] Other implementation methods

[0059] In other embodiments, the handle 5 can be replaced with an electric motor to achieve fully automatic rotary stirring.

[0060] In other embodiments, the filter plate 10 can be replaced with filter plates of different pore sizes as needed to adapt to the filtration requirements of different rice wine products.

[0061] In other embodiments, the inner wall of the storage box 1 may be coated with a food-grade non-stick coating to facilitate cleaning and prevent materials from sticking to the wall.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rice wine production device with online monitoring and temperature control, comprising a storage tank (1) for holding rice wine fermentation materials, characterized in that, The storage box (1) is rotatably mounted on the fixed frame (8). The storage box (1) is provided with a first stirring mode driving component for driving the storage box (1) to rotate as a whole, and a second stirring mode driving component for driving the stirring element inside the storage box (1) to rotate independently. A mode switching mechanism is provided between the first stirring mode driving component and the second stirring mode driving component to selectively make the storage box (1) rotate as a whole or make the stirring element inside rotate independently, or make the two alternate according to a set time sequence. The storage box (1) has a filter port on its side, and a detachable filter plate (10) is provided at the filter port. An adjustable cover plate (12) is provided on the outside of the filter plate (10) to control the effective filtration area of ​​the filter port, thereby adjusting the oxygen supply during the fermentation process. The storage box (1) is equipped with a temperature sensor (11) to monitor the fermentation temperature in real time, so as to maintain a suitable fermentation temperature environment in conjunction with the external temperature control device.

2. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The storage box (1) is fixedly connected to a frame (2) on both sides, and a support frame (3) is fixedly connected to the frame (2). A first electromagnet (4) is embedded in the support frame (3). The first electromagnet (4) is magnetically attracted to the fixed frame (8) to fix the storage box (1) relative to the fixed frame (8) when energized. The storage box (1) is rotatably connected to the fixed support (6) on the fixed frame (8) through the connecting shafts (7) on both sides. A handle (5) is fixedly connected to the end of one of the connecting shafts (7) for manually driving the storage box (1) to rotate.

3. The rice wine production device with online monitoring and temperature control according to claim 2, characterized in that, The storage box (1) is rotatably connected to a drive shaft (14). The two ends of the drive shaft (14) are fixedly connected to the connecting shaft (7). The drive shaft (14) has two opposing spiral blades (15) on its outer side with the center as the symmetrical point. A second electromagnet (4) is built into the connection between the storage box (1) and the drive shaft (14). The drive shaft (14) is made of magnetic metal and is used to fix the drive shaft (14) relative to the storage box (1) when the second electromagnet (4) is energized.

4. The rice wine production device with online monitoring and temperature control according to claim 3, characterized in that, The mode switching mechanism includes the first electromagnet (4) and the second electromagnet (4), as well as a controller for controlling the power supply of both. When the first electromagnet (4) is energized and adsorbs the fixing frame (8) and the second electromagnet (4) is de-energized, the drive shaft (14) can rotate independently relative to the storage box (1). When the first electromagnet (4) is de-energized and the second electromagnet (4) is energized, the storage box (1) and the drive shaft (14) are fixed relative to each other and rotate as a whole. When the two are alternately energized and de-energized at a set time interval, the overall rotation of the storage box (1) and the independent rotation of the internal spiral blades (15) alternate.

5. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The frame (2) is fixedly connected to L-shaped locking plates (13) on both sides of the filter plate (10). The cover plate (12) is slidably inserted between the two locking plates (13). The size of the cover plate (12) is larger than that of the filter plate (10). A rubber pad is fixed on the side of the cover plate (12) adjacent to the filter plate (10).

6. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The inside of the fixed frame (8) is inclined and fixedly connected to the collection tray (9) at the lower side of the storage box (1). The lower end of the collection tray (9) is provided with a discharge port for collecting the filtered rice wine liquid.

7. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The fixing frame (8) is made of magnetic metal material. The bottom of the storage box (1) is provided with heating element and cooling element. The heating element and cooling element are electrically connected to temperature sensor (11) and external controller, and are used to automatically adjust fermentation temperature according to the feedback signal of temperature sensor (11).

8. The rice wine production device with online monitoring and temperature control according to claim 3, characterized in that, A sealing ring is provided at the connection between the drive shaft (14) and the storage box (1) to prevent leakage of fermentation materials.

9. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The storage box (1) is provided with a detachable filter plate (10) at the filter port, and multiple filter holes are evenly distributed on the filter plate (10).

10. The rice wine production device with online monitoring and temperature control according to claim 1, characterized in that, The device also includes a control panel, which is electrically connected to a temperature sensor (11), a first electromagnet (4), a second electromagnet, a heating element, and a cooling element, for displaying real-time temperature and setting fermentation parameters.

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