A device for distilling and purifying yellow rice wine

Abstract

This application provides a rice wine distillation and purification device, belonging to the field of rice wine processing technology. The device includes a heating tower, a clamping mechanism, and a condensation storage tank. A material box is slidably disposed inside the inner tube, with its outer surface in sealed contact with the inner surface of the inner tube. A torsion spring is used to push the clamping block to engage with the clamping slot. A gas guide pipe is connected to the top of the condensation storage tank, with the other end of the gas guide pipe communicating with the inner tube. Activating the negative pressure pump creates negative pressure inside the inner tube, pushing the material box to the upper end of the inner tube, causing the clamping slot and clamping block to engage, thus loading the material box. After distillation and purification, the clamping mechanism is released, and the material box moves downward under gravity. With the help of a pressure relief valve, the internal pressure remains stable, allowing the material box to move downward at a uniform speed. Loading and unloading are convenient, and only the material box needs cleaning; there is no need to clean the heating tower. The operation is simple and convenient, improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of rice wine processing, and more specifically, to a rice wine distillation and purification apparatus. Background Technology

[0002] Currently, rice wine is one of the oldest types of alcoholic beverages in the world, and the quality of the yeast starter determines the quality of the wine. Originating in China and unique to China, it is considered one of the three ancient alcoholic beverages in the world, along with beer and wine. Rice wine is made using wheat koji or small koji as a saccharification and fermentation agent. The brewing process of rice wine requires eight steps: soaking rice, steaming rice, cooling rice, fermenting in vats, stirring, fermenting in jars, heating the wine, and packaging.

[0003] When distilling and purifying rice wine, the existing heating tower requires opening the sealed door to introduce the material into the tower. After distillation and purification, the material inside the heating tower must be shoveled out and then the tower must be cleaned for use in the next distillation and purification. This operation is time-consuming and labor-intensive. Utility Model Content

[0004] To overcome the above shortcomings, this application provides a rice wine distillation and purification device, which aims to improve the problems of cumbersome loading and unloading and time-consuming and laborious cleaning of the heating tower.

[0005] This application provides a rice wine distillation and purification apparatus, including a heating tower, a clamping mechanism, and a condensation storage tank;

[0006] The heating tower has an inner tube fixed inside, with an opening at the lower end of the inner tube. A material box is slidably disposed inside the inner tube, and the outer surface of the material box is in sealed contact with the inner surface of the inner tube. A negative pressure pump is installed at the top of the heating tower, and the pumping end of the negative pressure pump is connected to the inner tube.

[0007] The locking mechanism includes a locking block and a torsion spring. The side wall of the material box has a locking groove. The locking block is rotatably connected to the inner tube. The torsion spring is used to push the locking block to lock into the locking groove. The top of the condensate storage tank is connected to a gas guide pipe, and the other end of the gas guide pipe is connected to the inner tube.

[0008] In a preferred embodiment of this utility model, the inner tube is equipped with a heater for heating the material box, and a heat insulation cavity is provided between the outer wall of the inner tube and the inner wall of the heating tower, the heat insulation cavity being filled with heat insulation cotton.

[0009] In a preferred embodiment of this utility model, the heater is disposed on the outer surface of the inner tube, the heater is a microwave heater, and the material box is a non-metallic box.

[0010] In a preferred embodiment of this utility model, the heater is disposed on the outer surface of the inner tube, the heater is an induction cooker heater, the material box is a metal box, and a vibration motor is embedded in the bottom of the material box.

[0011] In a preferred embodiment of this utility model, a one-way valve is installed at the end of the air guide pipe, and a pressure relief valve is installed at the top of the heating tower. One end of the pressure relief valve extends into the inner pipe. The pressure relief valve not only balances the internal pressure of the inner pipe, but also stabilizes the pressure during the downward movement of the material box, so that the material box moves down smoothly and at a constant speed.

[0012] In a preferred embodiment of this utility model, the upper end of the card block is hinged to the inner tube via a rotating shaft. An electric push rod is fixed to the inner tube, and a block is fixed to the movable end of the electric push rod. The block is arranged opposite to the card block. The block is driven to move upward, causing the block to push the card block to separate from the card slot, so that the material box is unlocked and moved downward by weight.

[0013] In a preferred embodiment of this utility model, the condensate storage tank is provided with a pressure-resistant chamber, the pressure-resistant chamber is provided with a condensation cavity on its periphery, and a booster pump is installed at the air inlet of the condensate storage tank.

[0014] In a preferred embodiment of this utility model, a limiting ring is fixed to the inner wall of the inner tube, the upper port of the material box abuts against the lower port of the limiting ring, and a connection port A and a connection port B are provided at the top of the inner tube. Both connection ports A and B are located at the upper end of the limiting ring. The suction end of the negative pressure pump is connected to the connection port A, and the air guide pipe is connected to the connection port B.

[0015] Beneficial effects: This application provides a rice wine distillation and purification device. The upper port of the material box is inserted into the lower port of the inner tube. By starting the negative pressure pump, a negative pressure is generated inside the inner tube, pushing the material box to the upper end of the inner tube. The slot and the locking block engage to load the material box. After distillation and purification, the locking mechanism is released, and the material box moves downward under gravity. With the help of the pressure relief valve, the internal pressure is kept stable, allowing the material box to move downward at a uniform speed. Loading and unloading are convenient, and only the material box needs to be cleaned. There is no need to clean the heating tower. The operation is simple and convenient, improving work efficiency.

[0016] Combined with AGV carts and negative pressure lifting systems, it achieves unmanned operation, reduces manual intervention, and lowers labor intensity; only the material box needs to be cleaned, and it can be quickly disassembled independently, making the cleaning method from traditional equipment to individual components; the boiling point is lowered under negative pressure, reducing the loss of volatile flavor substances such as aldehydes and esters. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the rice wine distillation and purification apparatus provided in the embodiments of this application;

[0019] Figure 2 A partially cutaway structural diagram provided for an embodiment of this application;

[0020] Figure 3 A partially cut-out three-dimensional structural schematic diagram provided for an embodiment of this application;

[0021] Figure 4 A schematic diagram of the internal structure of the inner tube provided for an embodiment of this application;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the material box provided for an embodiment of this application.

[0023] In the diagram: 100, heating tower; 101, pressure relief valve; 110, inner pipe; 111, limit ring; 130, negative pressure pump; 150, material box; 151, slot; 170, heater; 300, snap-fit ​​mechanism; 310, snap-fit ​​block; 330, torsion spring; 350, electric push rod; 351, block; 500, condensate storage tank; 510, gas guide pipe; 530, one-way valve. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0027] Please see Figures 1-5 This utility model provides a rice wine distillation and purification device, including a heating tower 100, a snap-fit ​​mechanism 300, and a condensation storage tank 500;

[0028] The heating tower 100 has an inner tube 110 fixed inside, with an opening at the lower end. A material box 150 is slidably disposed inside the inner tube 110, and the outer surface of the material box 150 is in sealed contact with the inner surface of the inner tube 110. A negative pressure pump 130 is installed at the top of the heating tower 100, and the suction end of the negative pressure pump 130 is connected to the inner tube 110.

[0029] The locking mechanism 300 includes a locking block 310 and a torsion spring 330. The side wall of the material box 150 has a locking groove 151. The locking block 310 is rotatably connected to the inner tube 110. The torsion spring 330 is used to push the locking block 310 to lock into the locking groove 151. The top of the condensate storage tank 500 is connected to a gas guide pipe 510. The other end of the gas guide pipe 510 is connected to the inner tube 110.

[0030] In a specific embodiment of this utility model, the inner tube 110 is equipped with a heater 170 for heating the material box 150, and a heat insulation cavity is provided between the outer wall of the inner tube 110 and the inner wall of the heating tower 100, and the heat insulation cavity is filled with heat insulation cotton.

[0031] The insulation cavity filled with insulation cotton (preferably aerogel felt with a thermal conductivity of ≤0.02W / (m・K)) can reduce heat loss by ≥85%, allowing the heat energy of the heater 170 to be concentrated on the material box 150, increasing the energy utilization rate from 60%-70% in the traditional structure to over 90%.

[0032] The thermal insulation design keeps the outer shell temperature of the heating tower 100 ≤ 50℃ (compared to ≥ 80℃ for traditional equipment), reducing shell deformation and paint aging caused by high temperatures and extending the equipment's service life by 5-8 years. The thermal insulation cavity effectively blocks heat radiation from affecting the negative pressure pump 130, reducing the failure rate. The low-temperature outer shell avoids the risk of burns to operators.

[0033] In a specific embodiment of this utility model, the heater 170 is disposed on the outer surface of the inner tube 110, the heater 170 is a microwave heater, and the material box 150 is a non-metallic box.

[0034] The microwave heater (frequency 2450MHz, power 3-5kW) can directly penetrate the non-metallic container 150 (preferably made of polytetrafluoroethylene), causing the water molecules inside the rice wine to vibrate and generate heat directly, with a heating rate of 5-8℃ / second (compared to only 1-2℃ / second for traditional heating methods).

[0035] Microwave heating's volumetric heating characteristics ensure temperature uniformity within the container within ±2℃, preventing flavor compound decomposition caused by localized overheating and increasing ester retention by 15%-20%. Combined with an infrared temperature sensor, microwave power can be adjusted in real-time, achieving temperature control accuracy of ±0.5℃ to meet the temperature requirements of different distillation stages. Microwave heating has no thermal inertia, stopping heating immediately upon power failure, avoiding over-distillation caused by residual heat from traditional heaters. Microwave heating boasts an energy conversion efficiency of ≥80% (compared to only 50%-60% for traditional electric heating elements), saving approximately 30,000 kWh of electricity annually for the same production volume (based on an annual production of 500 tons of rice wine). It eliminates the need for a heat transfer medium (such as heat transfer oil), reducing environmental pollution risks.

[0036] In a specific embodiment of this utility model, the heater 170 is disposed on the outer surface of the inner tube 110, the heater 170 is an induction cooker heater, the material box 150 is a metal box, and a vibration motor is embedded in the bottom of the material box 150.

[0037] The induction cooker heater (power 5-8kW) uses electromagnetic induction to heat the metal material box 150 (selected 304 stainless steel) itself, with a thermal efficiency of ≥90%, saving 20%-25% of energy compared to traditional electric heating tubes. It heats up quickly, reaching 78℃ from room temperature in just 3-5 minutes (compared to 8-10 minutes using traditional methods), reducing single-batch distillation time by 15%-20%.

[0038] The vibration motor (model: YZU-3-2, vibration frequency 2800r / min) generates vertical vibration (amplitude 0.5-1mm), which creates micro-turbulence in the rice wine in the container, enhancing the vapor-liquid mass transfer efficiency.

[0039] Actual measurements show that, under the same distillation time, the alcohol extraction rate is increased by 10%-15%, and the residual alcohol content is reduced from 3%-5% in the traditional process to 1%-2%, thus improving the utilization rate of raw materials.

[0040] Anti-coking and self-cleaning

[0041] The vibration prevents solids (such as proteins and polysaccharides) in the rice wine from scorching at the bottom of the container, reducing the frequency of cleaning. Reduced residue from scorching avoids localized overheating and flavor deterioration caused by scorching, extending the container's lifespan.

[0042] Depending on the actual production situation, two different types of heating methods can be added and used according to the specific heating conditions. The heater 170 described in this application includes, but is not limited to, microwave and electromagnetic, as well as other non-contact heating methods.

[0043] In a specific embodiment of this utility model, a one-way valve 530 is installed at the end of the air guide pipe 510, and a pressure relief valve 101 is installed at the top of the heating tower 100. One end of the pressure relief valve 101 extends into the inner pipe 110. The pressure relief valve 101 not only balances the internal pressure of the inner pipe 110, but also stabilizes the pressure during the downward movement of the material box 150, so that the material box 150 moves smoothly and at a uniform speed.

[0044] In a specific embodiment of this utility model, the upper end of the locking block 310 is hinged to the inner tube 110 via a rotating shaft. An electric push rod 350 is fixed to the inner tube 110. A block 351 is fixed to the movable end of the electric push rod 350. The block 351 is arranged opposite to the locking block 310. The block 351 is driven to move upward, causing the block 351 to push the locking block 310 to separate from the slot 151, so that the material box 150 is unlocked and moves downward under the weight.

[0045] In a specific embodiment of this utility model, a pressure-resistant chamber is provided inside the condensation storage tank 500, a condensation cavity is provided on the periphery of the pressure-resistant chamber, and a booster pump is installed at the air inlet of the condensation storage tank 500.

[0046] In a specific embodiment of this utility model, a limiting ring 111 is fixed to the inner wall of the inner tube 110, the upper port of the material box 150 abuts against the lower port of the limiting ring 111, and the top of the inner tube 110 has a connection port A and a connection port B. Both the connection port A and the connection port B are opened at the upper end of the limiting ring 111. The suction end of the negative pressure pump 130 is connected to the connection port A, and the air guide pipe 510 is connected to the connection port B.

[0047] The working principle of this rice wine distillation and purification device:

[0048] Feeding process

[0049] Initial state: The material box 150 is located below the heating tower 100 and is transported to the inner tube 110 directly by a trolley with a lifting bucket (such as an AGV automatic guided vehicle).

[0050] Sealing connection: The lifting bucket precisely connects the upper port of the material box 150 with the lower port of the inner tube 110. The sealing ring on the outer surface of the material box 150 (made of food-grade silicone rubber, temperature resistant from -40℃ to 200℃) forms a sealing contact with the inner wall of the inner tube 110 (sealing pressure ≥0.2MPa).

[0051] Negative pressure boost: Start the negative pressure pump 130 (e.g., model: 2BV5110, pumping speed 3.6m). 3 ( / min) A negative pressure environment (vacuum degree can reach -0.08MPa) is formed inside the inner tube 110. Under the action of pressure difference, the material box 150 slides upward along the inner wall of the inner tube 110 until the slot 151 is aligned with the block 310.

[0052] Snap-fit ​​locking: Torsion spring 330 (elastic modulus 80-100N / mm) pushes the snap-fit ​​block 310 into the snap-fit ​​slot 151 to achieve mechanical locking (locking force ≥500N), ensuring that the material box 150 is stable in position during distillation.

[0053] Distillation process

[0054] Heating and evaporation: The inner tube 110 is heated so that the rice wine in the material box 150 boils under negative pressure (boiling point is about 60-70℃, which is 10-20℃ lower than normal pressure).

[0055] Steam transfer: Alcohol vapor enters the condensate storage tank 500 through the gas delivery pipe 510 (inner diameter 50-80mm, made of 316L stainless steel). A gas-liquid separator is installed in the middle section of the gas delivery pipe 510 to separate entrained droplets and improve distillation purity.

[0056] Condensation Collection: Circulating cooling water (temperature 5-15℃) is introduced into the spiral condenser tube (heat exchange area 8-12㎡) inside the condensation storage tank 500, so that the vapor is condensed into liquid alcohol (alcohol content ≥70%V / V) and collected at the bottom of the tank.

[0057] Unloading process

[0058] Unlocking and feeding: After distillation, the electric push rod 350 overcomes the elastic force of the torsion spring 330, causing the locking block 310 to disengage from the locking slot 151. The material box 150 then begins to fall under the influence of gravity.

[0059] Pressure stabilization control: The pressure relief valve 101 (opening pressure 0.05MPa) works synchronously, adjusting the air pressure in the inner tube 110 to make the material box 150 descend at a uniform speed (descent speed 0.5-1m / s), avoiding impact or steam leakage caused by sudden changes in air pressure.

[0060] Automatic unloading: After the material box 150 falls to the bottom of the heating tower 100, it is removed by the lifting bucket, replaced with a new material box, and one work cycle is completed.

[0061] By activating the negative pressure pump 130, a negative pressure is generated inside the inner tube 110, pushing the material box 150 to the upper end of the inner tube 110. This causes the slot 151 to engage with the locking block 310, allowing material to be loaded into the material box 150. After distillation and purification, the locking mechanism 300 is released, and the material box 150 moves downward under gravity. The pressure relief valve 101 maintains stable internal pressure, ensuring the material box 150 moves downward at a uniform speed. Loading and unloading are convenient, and only the material box 150 needs cleaning; there is no need to clean the heating tower 100. Operation is simple and convenient, improving work efficiency. It also has the following characteristics:

[0062] 1. Efficient loading and unloading improves production efficiency.

[0063] Time cost: The loading and unloading time for a single operation is reduced to 3-5 minutes (15-20 minutes for traditional equipment), and the daily batch processing capacity increases by 30%-40%.

[0064] Automation level: Combined with AGV carts and negative pressure lifting systems, it achieves unmanned operation, reduces manual intervention, and lowers labor intensity.

[0065] 2. Modular design, easy maintenance

[0066] Easy to clean: Only the cleaning material box 150 (quickly detachable) is needed, reducing the cleaning time from 2 hours of traditional equipment to 20 minutes, and reducing the amount of cleaning agent used by 70%.

[0067] Troubleshooting: The clamping mechanism 300 and the material box 150 are independently modularized, so a failure of a single component will not affect the overall operation, reducing maintenance time by 80%.

[0068] 3. Negative pressure distillation protects flavor compounds.

[0069] Low-temperature distillation: The boiling point is lowered under negative pressure, reducing the loss of volatile flavor substances such as aldehydes and esters (retention rate ≥90%, compared to about 70% in traditional processes).

[0070] Reduced energy consumption: Heating temperature is reduced by 10-20℃, energy consumption is reduced by 15%-20%, and approximately 150kWh of electricity is saved for every ton of alcohol produced.

[0071] 4. Reliable sealing ensures product quality.

[0072] Double sealing: The mechanical seal of the material box 150 sealing ring and the inner wall of the inner tube 110, combined with the gas seal of the negative pressure environment, results in a leakage rate of <0.1% (compared to about 2%-5% for traditional equipment).

[0073] Impurity control: The gas-liquid separator removes solid particles and high-boiling-point impurities from the steam, ensuring that the turbidity of the finished wine is ≤0.5NTU (national standard ≤1NTU).

[0074] 5. Safety assurance, reducing operational risks

[0075] Pressure balance: The pressure relief valve 101 is linked with the negative pressure pump 130 to ensure that the pressure in the inner pipe 110 is always maintained within a safe range (-0.08MPa to 0.05MPa) to prevent the risk of overpressure explosion.

[0076] Overload protection: The torsion spring 330 of the latching mechanism 300 has an overload protection function. When the material box 150 is subjected to abnormal external force, the latch 310 will automatically disengage to avoid damage to the equipment.

[0077] 6. Wide range of applications and high flexibility

[0078] Capacity adaptability: By replacing different sizes of material boxes (50-200L capacity), it can adapt to the needs of pilot-scale, intermediate-scale and large-scale production.

[0079] Material compatibility: Suitable for distillation and purification of various alcoholic beverages such as rice wine, baijiu, and fruit wine, especially suitable for low-temperature distillation of heat-sensitive materials.

[0080] It should be noted that the specific model and specifications of the negative pressure pump 130 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0081] The power supply and operating principle of the negative pressure pump 130 are clear to those skilled in the art and will not be described in detail here.

[0082] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A device for distilling and purifying yellow rice wine, characterized by comprising: include A heating tower (100) has an inner tube (110) fixed inside it. The lower end of the inner tube (110) is open. A material box (150) is slidably disposed inside the inner tube (110). The outer surface of the material box (150) is in sealed contact with the inner surface of the inner tube (110). A negative pressure pump (130) is installed on the top of the heating tower (100). The suction end of the negative pressure pump (130) is connected to the inner tube (110). The snap-fit ​​mechanism (300) includes a snap-fit ​​block (310) and a torsion spring (330). The side wall of the material box (150) has a snap-fit ​​groove (151). The snap-fit ​​block (310) is rotatably connected to the inner tube (110). The torsion spring (330) is used to push the snap-fit ​​block (310) to snap-fit ​​with the snap-fit ​​groove (151). A condensation storage tank (500) is provided with a gas guide pipe (510) connected to the top of the condensation storage tank (500), and the other end of the gas guide pipe (510) is connected to the inner tube (110).

2. The rice wine distillation and purification apparatus according to claim 1, characterized in that, The inner tube (110) is equipped with a heater (170) for heating the material box (150). A heat insulation cavity is provided between the outer wall of the inner tube (110) and the inner wall of the heating tower (100), and the heat insulation cavity is filled with heat insulation cotton.

3. The rice wine distillation and purification apparatus according to claim 2, characterized in that, The heater (170) is disposed on the outer surface of the inner tube (110), the heater (170) is a microwave heater, and the material box (150) is a non-metallic box.

4. The rice wine distillation and purification apparatus according to claim 2, characterized in that, The heater (170) is disposed on the outer surface of the inner tube (110). The heater (170) is an induction cooker heater. The material box (150) is a metal box body, and a vibration motor is embedded in the bottom of the material box (150).

5. The rice wine distillation and purification apparatus according to claim 1, characterized in that, A one-way valve (530) is installed at the end of the air guide pipe (510), and a pressure relief valve (101) is installed at the top of the heating tower (100). One end of the pressure relief valve (101) extends into the inner tube (110). The pressure relief valve (101) not only balances the pressure inside the inner tube (110), but also stabilizes the pressure during the downward movement of the material box (150), so that the material box (150) moves down smoothly and at a constant speed.

6. The rice wine distillation and purification apparatus according to claim 1, characterized in that, The upper end of the card block (310) is hinged to the inner tube (110) via a rotating shaft. An electric push rod (350) is fixed to the inner tube (110). A block (351) is fixed to the movable end of the electric push rod (350). The block (351) is arranged opposite to the card block (310). The block (351) is driven to move upward by the block (351), so that the block (351) pushes the card block (310) to separate from the card slot (151), so that the material box (150) is unlocked and moves downward by weight.

7. The rice wine distillation and purification apparatus according to claim 1, characterized in that, The condensation storage tank (500) is provided with a pressure-resistant chamber, and a condensation cavity is provided on the periphery of the pressure-resistant chamber. A booster pump is installed at the air inlet of the condensation storage tank (500).

8. The rice wine distillation and purification apparatus according to claim 1, characterized in that, The inner wall of the inner tube (110) is fixed with a limiting ring (111). The upper port of the material box (150) abuts against the lower port of the limiting ring (111). The top of the inner tube (110) has a connection port A and a connection port B. Both the connection port A and the connection port B are opened at the upper end of the limiting ring (111). The suction end of the negative pressure pump (130) is connected to the connection port A, and the air guide pipe (510) is connected to the connection port B.

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