Baijiu brewing method by multi-grain mixed fermentation

Abstract

The invention relates to a multi-cereal mixed fermentation baijiu brewing method applied to the field of baijiu fermentation, which comprises the following steps: S1, cooking crushed corn, sorghum, barley, wheat and rice to obtain a primary raw material; s2, spreading and airing the primary raw materials; s3, adding Xiaoqu into the spread and aired primary raw material, and saccharifying for 24 hours to obtain a to-be-fermented product; s4, putting the to-be-fermented product into a fermentation cylinder, and fermenting for 30 days; s5, after fermentation is completed, distillation is conducted, and wine is fetched. In the spreading and airing process, through cooperation of the lifting isolation unit, the inclined part and the reverse conveying unit, the problem of uneven heat dissipation caused by material accumulation in a traditional spreading and airing process is solved, and higher-quality raw material treatment conditions are provided for multi-grain mixed fermentation.

Description

Technical Field

[0001] This invention relates to a method for brewing baijiu (Chinese liquor), and more particularly to a method for brewing baijiu using multi-grain mixed fermentation applied in the field of baijiu fermentation. Background Technology

[0002] Multigrain blended brewing of baijiu is a traditional and scientific brewing process. By blending and fermenting different grains in a specific ratio, the flavor, taste, and nutritional value of baijiu can be significantly improved. Through nutritional complementarity, flavor synergy, and process optimization, baijiu can have both complex aromas and health benefits. It is a perfect combination of traditional wisdom and modern technology.

[0003] Chinese invention patent CN118126789B discloses a cooling machine and a liquor brewing production line. By using a dispersing and cooling mechanism to perform linear reciprocating motion, the lees at various positions on the first cooling and conveying mechanism can be dispersed, so that the lees can dissipate heat evenly, accelerate the cooling speed, and reduce costs.

[0004] Chinese invention patent CN108373958B discloses a device for brewing baijiu (Chinese liquor), which realizes automatic turning of the mash, reduces the workload of workers during the mash spreading process, and improves the spreading efficiency of the mash.

[0005] In existing baijiu brewing processes, when using spreading and cooling equipment, a conveyor structure is generally used to spread the raw materials flat. However, in actual operation, the primary raw materials have a certain thickness, and the primary raw materials at the bottom of the conveyor structure are covered by the primary raw materials at the top. This results in the cooling quality of the bottom layer being inferior to that of the top layer. When adding koji later, the residual temperature will damage the koji. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is the uneven heat dissipation caused by material accumulation in the traditional spreading and drying process.

[0007] To address the above problems, this invention provides a method for brewing baijiu (Chinese liquor) through multi-grain mixed fermentation, comprising the following steps: S1. The crushed corn, sorghum, barley, wheat and rice are steamed and cooked to obtain primary raw materials; S2. Spread out and dry the primary raw materials; S3. Add the koji to the primary raw materials after they have been spread out and cooled, and saccharify for 24 hours to obtain the product to be fermented. S31. During cooling and dispersing, the primary raw material needs to be placed on the low horizontal part of the conveyor belt. Using the lifting isolation unit and the reverse conveying unit in the side plates on both sides of the conveyor belt, the surface primary raw material conveyed by the inclined part is peeled off and transferred to the temporary storage frame in the lifting isolation unit to form a dynamic layered spreading. S32. When the lifting isolation unit is about to reach the high level, the lifting isolation unit raises the temporary storage box to a position flush with the surface of the conveyor belt, and then opens the temporary storage box to transfer the surface primary raw materials inside and the bottom primary raw materials on the conveyor belt to the collection cylinder below for saccharification. S4. Place the product to be fermented into a fermentation container and ferment for 30 days. S5. After fermentation is complete, distill to obtain the alcohol.

[0008] In the above-mentioned method of brewing baijiu through mixed fermentation of multiple grains, the combination of the lifting isolation unit, the inclined section, and the reverse conveying unit solves the problem of uneven heat dissipation caused by material accumulation in the traditional spreading and cooling process, and provides better raw material processing conditions for mixed fermentation of multiple grains.

[0009] As a further improvement of this application, the conveyor belt is mounted on a support, and the conveyor belt includes a low horizontal section, an inclined section and a high horizontal section. Side plates are mounted on the support, and a magnetic suction plate parallel to the inclined section is installed between the two side plates. Several lifting isolation units are equidistantly arranged on the surface of the conveyor belt. The lifting isolation unit includes a vertical frame fixedly mounted on the surface of the conveyor belt and a temporary storage frame that slides through the inside of the conveyor belt, and the bottom of the temporary storage frame attracts the magnetic suction plate.

[0010] As a further improvement of this application, a heat dissipation frame for assisting cooling is arranged above the conveyor belt, and a collection cylinder is arranged on one side of the high horizontal section. The magnetic attraction between the magnetic plate and the bottom of the temporary storage frame gradually strengthens from the low horizontal section to the high horizontal section.

[0011] As a further improvement of this application, a No. 1 motor is installed on the top of the frame, and the output end of the No. 1 motor is connected to a No. 1 roller. The surface of the No. 1 roller is wrapped with a traction belt whose tail end is connected to the middle position of the top of the temporary storage frame. The side of the temporary storage frame away from the frame is designed as an open opening, and a baffle with a height value smaller than the height value of the temporary storage frame is slidably connected inside the opening. A No. 2 motor is installed on the top of the temporary storage frame, and the output end of the No. 2 motor is connected to a No. 2 roller. The surface of the No. 2 roller is wrapped with a traction cable whose tail end is connected to the top of the baffle. A guide roller is installed on the top of the temporary storage frame.

[0012] As a further improvement of this application, the vertical distance between the top surface of the magnetic suction plate and the surface of the inclined part is H1, and the vertical distance between the bottom surface of the magnetic suction plate and the surface of the inclined part is H2, wherein H1 is less than the height of the baffle and H1 is greater than H2.

[0013] As a further improvement of this application, an auxiliary spreading system is also provided on the conveyor belt. The auxiliary spreading system includes a position detection module, a storage execution module, and a lowering isolation module. The position detection module includes a displacement sensor installed in the temporary storage frame and a photoelectric sensor installed on the side plate at the connection position between the low horizontal part and the inclined part. It is used to calculate the displacement distance of each temporary storage frame after passing the photoelectric sensor and obtain the position of the temporary storage frame on the conveyor belt. The storage execution module is signal-connected to the position detection module and lifts the temporary storage frame to the surface of the conveyor belt when it is about to reach the high horizontal part. The lowering isolation module is signal-connected to the position detection module and lowers the temporary storage frame to the lower surface of the conveyor belt to receive the surface primary raw material when it is about to reach the inclined part.

[0014] As another improvement of this application, a reverse transmission unit is installed inside the side plate, and the reverse transmission unit includes a strip groove provided in the corresponding inclined part inside the side plate. A screw is installed through the inside of the strip groove. The top of the screw is rotatably connected to a support seat. A first electric push rod is installed on the top of the support seat. A second electric push rod is installed on the surface of the high horizontal part. The movable end of the second electric push rod is connected to a linkage plate. The surface of the linkage plate is slidably connected to the surface of the support seat.

[0015] As a further supplement to this application, a magnetic groove is provided on the side surface of the upright frame away from the temporary storage frame, and a magnetic push bar is fitted inside the magnetic groove. An electromagnetic plate and a distance sensor are installed on the top of the magnetic groove.

[0016] As a further supplement to this application, the height of the support seat protruding from the conveyor belt surface in the same side plate gradually decreases along the direction of the inclined part closer to the high horizontal part, and the screw thread is threaded into the threaded sleeve that is slidably connected in the strip groove.

[0017] In summary, a conveyor belt with inclined sections, a high-level horizontal section, and a low-level horizontal section, working in conjunction with a lifting isolation unit and magnetic suction plates, achieves dynamic stratification during the initial raw material conveying process. When the raw material passes through the inclined section, the surface material rolls down under gravity and partially sinks into the temporary storage frame below the conveyor belt, exposing the bottom material for sufficient heat dissipation. Upon reaching the high-level horizontal section, the temporary storage frame is raised and aligned with the conveyor belt. The opening and closing of baffles transfers the collected surface and bottom materials together to the collection cylinder. An auxiliary spreading and cooling system, along with a position detection module, precisely controls the lifting and lowering of the temporary storage frame, ensuring the accuracy and continuity of the stratification operation. Furthermore, for raw materials with poor bulk, a reverse conveying unit is added, using stepped pushers to forcibly scrape and push the material, further enhancing the stratification effect. The entire device, through the organic combination of magnetic control, mechanical transmission, and intelligent detection, achieves efficient and uniform cooling of raw materials used in liquor brewing. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the workflow of this application; Figure 2 This is a schematic diagram of the overall structure of the first embodiment of this application; Figure 3 This is a schematic diagram of the installation of the conveyor belt and magnetic suction plate according to the first embodiment of this application; Figure 4 This is a schematic diagram of the installation of the lifting isolation unit and the conveyor belt according to the first embodiment of this application; Figure 5 This is a schematic diagram of the composition of the lifting isolation unit according to the first embodiment of this application; Figure 6 This is a diagram showing the state of the lifting isolation unit in the inclined section according to the first embodiment of this application. Figure 7 This is a schematic diagram of the lifting isolation unit of the first embodiment of this application collecting the primary raw materials that have rolled off at the inclined section; Figure 8 This is a schematic diagram of the primary raw materials collected in the baffle lifting and releasing temporary storage frame according to the first embodiment of this application; Figure 9 This is a state diagram of the lifting isolation unit of the first embodiment of this application moving on the conveyor belt surface below; Figure 10 This is a structural diagram of the push bar, electromagnetic plate, and magnetic suction groove according to the second embodiment of this application; Figure 11 This is a structural diagram of the reverse transmission unit according to the second embodiment of this application; Figure 12 This is a diagram showing the working state of the reverse transmission unit in conjunction with the push bar in the second embodiment of this application.

[0019] Explanation of the labels in the diagram: 1. Conveyor belt; 101. Low-level horizontal section; 102. Inclined section; 103. High-level horizontal section; 2. Heat dissipation frame; 3. Side plate; 4. Lifting and isolation unit; 401. Vertical frame; 402. Temporary storage frame; 403. Motor No. 1; 404. Traction belt; 405. Baffle; 406. Motor No. 2; 407. Traction cable; 5. Bracket; 6. Magnetic suction plate; 7. Reverse conveying unit; 71. Strip groove; 72. Electric actuator No. 1; 73. Electric actuator No. 2; 74. Screw; 75. Linkage plate; 8. Electromagnetic plate; 9. Push bar; 10. Magnetic suction groove. Detailed Implementation

[0020] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0021] First implementation method: Figure 1This paper illustrates a method for brewing baijiu (Chinese white liquor) through multigrain mixed fermentation, comprising the following steps: S1. The crushed corn, sorghum, barley, wheat and rice are steamed and cooked to obtain primary raw materials; S2. Spread out and dry the primary raw materials; S3. Add the koji to the primary raw materials after they have been spread out and cooled, and saccharify for 24 hours to obtain the product to be fermented. S31. During cooling and dispersing, the primary raw material needs to be placed on the low horizontal part 101 of the conveyor belt 1. Using the lifting isolation unit 4 and the reverse conveying unit 7 in the side plates 3 on both sides of the conveyor belt 1, the surface primary raw material conveyed by the inclined part 102 is peeled off and transferred to the temporary storage frame 402 in the lifting isolation unit 4 to form a dynamic layered spreading. S32. When the lifting isolation unit 4 is about to reach the high horizontal part 103, the lifting isolation unit 4 raises the temporary storage frame 402 to a position flush with the surface of the conveyor belt 1, and then opens the temporary storage frame 402 to transfer the surface primary raw material inside and the bottom primary raw material on the conveyor belt 1 together to the collection cylinder below for saccharification treatment. S4. Place the product to be fermented into a fermentation container and ferment for 30 days. S5. After fermentation is complete, distill to obtain the alcohol.

[0022] Figures 2-3 As shown, the conveyor belt 1 is mounted on the support 5, and the conveyor belt 1 includes a low horizontal section 101, an inclined section 102 and a high horizontal section 103. Side plates 3 are mounted on the support 5, and a magnetic suction plate 6 parallel to the inclined section 102 is mounted between the two side plates 3. Several lifting isolation units 4 are equidistantly arranged on the surface of the conveyor belt 1. The lifting isolation unit 4 includes a vertical frame 401 fixedly mounted on the surface of the conveyor belt 1 and a temporary storage frame 402 that slides through the interior of the conveyor belt 1. The bottom of the temporary storage frame 402 attracts the magnetic suction plate 6.

[0023] A heat dissipation frame 2 for auxiliary cooling is arranged above the conveyor belt 1, and a collection cylinder is arranged on one side of the high horizontal part 103. The magnetic attraction between the magnetic plate 6 and the bottom of the temporary storage frame 402 gradually strengthens from the low horizontal part 101 to the high horizontal part 103.

[0024] Figures 4-5As shown, a first motor 403 is installed on the top of the frame 401. The output end of the first motor 403 is connected to a first roller. A traction belt 404 with its tail end connected to the middle position of the top of the temporary storage frame 402 is wrapped around the surface of the first roller. The side of the temporary storage frame 402 facing away from the frame 401 is open. A baffle 405 with a height value smaller than the height value of the temporary storage frame 402 is slidably connected inside the opening of the temporary storage frame 402. A second motor 406 is installed on the top of the temporary storage frame 402. A second roller is connected to the output end of the second motor 406. A traction cable 407 with its tail end connected to the top of the baffle 405 is wrapped around the surface of the second roller. A guide roller is installed on the top of the temporary storage frame 402.

[0025] Specifically, when performing the corresponding drying process, the present invention adjusts the operation mode of the conveying structure to make it a structure with an inclined part 102. When the primary raw material passes through the inclined part 102, the primary raw material on the surface will roll off to different degrees under the action of gravity. In conjunction with the lifting isolation unit 4, the rolled-off surface primary raw material is collected, thereby forming a dynamic layered drying effect, which makes the heat dissipation quality more uniform and efficient.

[0026] When performing the layered drying operation, the primary raw material needs to be poured and laid flat between the two lifting isolation units 4 on the surface of the low horizontal part 101. Then, this part of the primary raw material is transferred to the inclined part 102 (the inclination angle is controlled between 15° and 25°) as the conveyor belt 1 moves.

[0027] Figure 6 and Figure 7 As shown, when the raw material reaches the inclined section 102, motor 403 starts and slowly releases the temporary storage frame 402. Since the temporary storage frame 402 is slidably connected to the surface of the conveyor belt 1 and is attracted by the bottom magnetic suction plate 6, as the height of the temporary storage frame 402 increases and the magnetic attraction of the magnetic suction plate 6 is strengthened, the vertical distance between it and the magnetic suction plate 6 gradually decreases. During this process, the distance between the baffle 405 and the surface of the upper inclined section 102 gradually shortens. At the low horizontal section 101, the height of the baffle 405 above the surface of the conveyor belt 1 is greater than the thickness of the primary raw material. At the inclined section 102, the height of the baffle 405 above the surface of the conveyor belt 1 gradually shortens, so it can gradually receive the surface primary raw material that rolls down due to gravity.

[0028] When the primary raw material on the surface passes through the beginning of the low horizontal section 101 and the inclined section 102, it can be fully cooled by the heat dissipation frame 2 (with built-in heat dissipation fan, which is existing technology and will not be described in detail). Then, when the temporary storage frame 402 moves down and begins to collect the primary raw material on the surface that has rolled down due to gravity, the primary raw material in the inner layer is exposed and continues to receive heat dissipation service from the heat dissipation frame 2.

[0029] Figure 8As shown, when the temporary storage frame 402 in the sinking state gradually moves to a position close to the high horizontal part 103, the first motor 403 starts, driving the temporary storage frame 402 to move up to a state flush with the surface of the conveyor belt 1, thereby ensuring the normal operation of the conveyor belt 1. When the temporary storage frame 402 is about to move downward with the movement of the conveyor belt 1, the second motor 406 is started at this time, and under the action of the traction cable 407, the baffle 405 is lifted. At this time, the material inside the temporary storage frame 402 is transferred to the collection cylinder below through the gap created by the lifting of the baffle 405, waiting for the subsequent bending operation.

[0030] Figure 9 As shown, after the temporary storage frame 402 releases the primary raw materials collected inside, it moves along with the conveyor belt 1 to the area below the magnetic suction plate 6. At this time, since the bottom surface of the magnetic suction plate 6 has no magnetic attraction, the temporary storage frame 402 will slide down slightly. Because the surfaces of the temporary storage frame 402 and the upright frame 401 are in sliding contact (sliding connection with a cross groove cross section), and the first motor 403 and the traction belt 404 are in the winding state at this time (because after passing through the high horizontal section 103, it is necessary to wind up and lift the temporary storage frame 402), a small section of the traction belt 404 remains unwinding. When moving downward, under the action of gravity, the temporary storage frame 402 slides down slightly and is then lifted and intercepted by the traction belt 404, and then stops sliding down. After flipping and moving upward to the low horizontal section 101 area, it returns to its original state under the action of gravity.

[0031] The vertical distance between the top surface of the magnetic suction plate 6 and the surface of the inclined portion 102 is H1, and the vertical distance between the bottom surface of the magnetic suction plate 6 and the surface of the inclined portion 102 is H2, wherein H1 is less than the height of the baffle 405 and H1 is greater than H2.

[0032] Specifically, the magnetic plate 6 is installed on the surface of the inclined portion 102 near the bottom, thus providing space for the temporary storage frame 402 running on the surface of the upper inclined portion 102 to sink. The difference between the baffle 405 and H1 ensures that even if the temporary storage frame 402 is attracted to the surface of the magnetic plate 6, part of the baffle 405 will still remain on the surface of the upper inclined portion 102. The primary raw materials in the temporary storage frame 402 will not be transferred to the surface of the magnetic plate 6, and the primary raw materials at the bottom of the surface of the inclined portion 102 will not be transferred into the temporary storage frame 402.

[0033] An auxiliary spreading system is also provided on the conveyor belt 1. The auxiliary spreading system includes a position detection module, a storage execution module, and a lowering isolation module. The position detection module includes a displacement sensor installed in the temporary storage frame 402 and a photoelectric sensor installed on the side plate 3 at the connection position between the low horizontal part 101 and the inclined part 102. It is used to calculate the displacement distance of each temporary storage frame 402 after passing the photoelectric sensor and obtain the position of the temporary storage frame 402 on the conveyor belt 1. The storage execution module is signal-connected to the position detection module. When the temporary storage frame 402 is about to reach the high horizontal part 103, it lifts the temporary storage frame 402 to the surface of the conveyor belt 1. The lowering isolation module is signal-connected to the position detection module. When the temporary storage frame 402 is about to reach the inclined part 102, it lowers the temporary storage frame 402 to the lower surface of the conveyor belt 1 to receive the surface primary raw material.

[0034] Specifically, the displacement sensor in each lifting isolation unit 4 starts calculating the displacement on the inclined part 102 after passing the photoelectric sensor, thereby providing a reference for the start-up and release time of the first motor 403, and providing a prompt effect at the time node when it is about to reach the high horizontal part 103, providing reference data for the operation of the storage execution module and the lower isolation module.

[0035] Second implementation method: Figures 10-11 The side plate 3 is shown to have a reverse transmission unit 7 installed inside. The reverse transmission unit 7 includes a strip groove 71 in the side plate 3 corresponding to the inclined part 102. A screw 74 is installed through the inside of the strip groove 71. The top end of the screw 74 is rotatably connected to a support seat. A first electric push rod 72 is installed on the top of the support seat. A second electric push rod 73 is installed on the surface of the high horizontal part 103. The movable end of the second electric push rod 73 is connected to a linkage plate 75. The surface of the linkage plate 75 is slidably connected to the surface of the support seat.

[0036] A magnetic groove 10 is provided on the side surface of the upright frame 401 opposite to the temporary storage frame 402, and a magnetic push bar 9 is fitted inside the magnetic groove 10. An electromagnetic plate 8 and a distance sensor are installed on the top of the magnetic groove 10.

[0037] The height of the support seat protruding from the surface of the conveyor belt 1 in the same side plate 3 gradually decreases along the direction of the inclined part 102 towards the high horizontal part 103, and the screw 74 is threadedly sleeved in the threaded sleeve that is slidably connected in the strip groove 71.

[0038] Unlike the first embodiment, this embodiment mainly addresses the problem that the primary raw materials are not very loose and it is difficult to form an effective rolling and stratification effect by relying solely on gravity during the climb. In this embodiment, the distance between two adjacent support seats is the same as the distance between two adjacent lifting isolation units 4.

[0039] Specifically, when the primary raw material is not very loose, the height of the support seat can be selectively adjusted by the screw 74 according to the thickness of the primary raw material laid on the surface of the conveyor belt 1, so that it forms a gradient decrease. Therefore, when pushing near the low horizontal part 101, the surface layer needs to be pushed. At this time, the thickness of the primary raw material is large, so the support seat and the first electric push rod 72 on the surface are high. As the primary raw material gradually rises, the degree of its surface layering gradually deepens, so the thickness of the primary raw material gradually decreases. Therefore, the support seat and the first electric push rod 72 on the surface are lower in this state.

[0040] During the first round of pushing operations, as the climbing height increases, when the upright frame 401 is about to align with the uppermost support seat, the electromagnetic plate 8 is activated (the magnetic force between the electromagnetic plate 8 and the pushing bar 9 is greater than the force between the magnetic groove 10 and the pushing bar 9; therefore, when the electromagnetic plate 8 is activated, the pushing bar 9 can maintain its adsorption state within the magnetic groove 10 while also being able to move up and down), causing the pushing bar 9 to move down a certain distance (the specific distance value can be adjusted according to actual operation, and the adjustment status of the distance value is detected by a distance sensor), until it is flush with the first electric push rod 72 on the surface of the uppermost support seat. At the same time, the first electric push rod 72 at the top extends, clamping the magnetically connected pushing bar 9. At this time, the electromagnetic plate 8 is de-energized. The clamping principle of the other two pushing bars 9 is the same and will not be repeated here. Furthermore, in this invention, there are three first electric push rods 72, but the number of first electric push rods 72 is not fixed and can be increased or decreased according to actual conditions.

[0041] Simultaneously, after clamping the three push bars 9, the second electric actuator 73 is activated, causing it to move downwards. This drives the three push bars 9, arranged in a stepped pattern, downwards, performing a stepped scraping and pushing process on the surface of the conveyor belt 1 corresponding to the inclined section 102, thus assisting in the layered spreading and drying operation (e.g., Figure 12 (As shown).

[0042] After the push is completed, the second electric push rod 73 retracts, driving the push bar 9 to return to the magnetic groove 10. The magnetic attraction is used to achieve constraint and storage, waiting for the next push operation.

[0043] The linkage plate 75 is slidably connected to the support seat, so when the screw 74 adjusts the height, the corresponding height adjustment can be achieved without affecting the linkage plate 75 driving the support seat to move along the direction of the inclined part 102.

[0044] On the conveyor belt 1, the areas formed by two adjacent lifting isolation units 4 are covered with primary raw materials. During the climbing process, the primary raw materials in each area are pushed and scraped three times (corresponding to the number of lifting seats, three are used as an example in this invention) to achieve a full layered drying operation.

[0045] In addition, the surfaces of the conveyor belt 1, the lifting isolation unit 4, and the reverse conveying unit 7 in this invention are all coated with an anti-stick coating to prevent the primary raw materials from sticking together.

[0046] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A method for brewing baijiu (Chinese white liquor) through multi-grain mixed fermentation, characterized in that, Includes the following steps: S1. The crushed corn, sorghum, barley, wheat and rice are steamed and cooked to obtain primary raw materials; S2. Spread out and dry the primary raw materials; S3. Add the koji to the primary raw materials after they have been spread out and cooled, and saccharify for 24 hours to obtain the product to be fermented. S31. During cooling and dispersing, the primary raw material needs to be placed on the low horizontal part (101) of the conveyor belt (1). Using the lifting isolation unit (4) and the reverse conveying unit (7) in the side plates (3) on both sides of the conveyor belt (1), the surface primary raw material conveyed by the inclined part (102) is peeled off and transferred to the temporary storage frame (402) in the lifting isolation unit (4) to form a dynamic layered spreading. S32. When the lifting isolation unit (4) is about to reach the high level (103), the lifting isolation unit (4) raises the temporary storage box (402) to a position flush with the surface of the conveyor belt (1), and then opens the temporary storage box (402) to transfer the surface primary raw material inside and the bottom primary raw material on the conveyor belt (1) together to the collection cylinder below for saccharification. S4. Place the product to be fermented into a fermentation container and ferment for 30 days. S5. After fermentation is complete, distill to obtain the alcohol.

2. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 1, characterized in that: The conveyor belt (1) is mounted on the support (5), and the conveyor belt (1) includes a low horizontal part (101), an inclined part (102) and a high horizontal part (103). Side plates (3) are mounted on the support (5). A magnetic suction plate (6) parallel to the inclined part (102) is installed between the two side plates (3). Several lifting isolation units (4) are equidistantly arranged on the surface of the conveyor belt (1). The lifting isolation unit (4) includes a vertical frame (401) fixedly mounted on the surface of the conveyor belt (1) and a temporary storage frame (402) that slides through the inside of the conveyor belt (1). The bottom of the temporary storage frame (402) attracts the magnetic suction plate (6).

3. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 2, characterized in that: A heat dissipation frame (2) for assisting in cooling is arranged above the conveyor belt (1), and a collection cylinder is arranged on one side of the high horizontal part (103). The magnetic attraction between the magnetic plate (6) and the bottom of the temporary storage frame (402) gradually strengthens from the low horizontal part (101) to the high horizontal part (103).

4. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 3, characterized in that: A first motor (403) is installed on the top of the upright frame (401). The output end of the first motor (403) is connected to a first roller. A traction belt (404) with its tail end connected to the middle position of the top of the temporary storage frame (402) is wrapped around the surface of the first roller. The side surface of the temporary storage frame (402) away from the upright frame (401) is open. A baffle (405) with a height value smaller than the height value of the temporary storage frame (402) is slidably connected inside the opening of the temporary storage frame (402). A second motor (406) is installed on the top of the temporary storage frame (402). A second roller is connected to the output end of the second motor (406). A traction cable (407) with its tail end connected to the top of the baffle (405) is wrapped around the surface of the second roller. A guide roller is installed on the top of the temporary storage frame (402).

5. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 4, characterized in that: The vertical distance between the top surface of the magnetic suction plate (6) and the surface of the inclined part (102) is H1, and the vertical distance between the bottom surface of the magnetic suction plate (6) and the surface of the inclined part (102) is H2, wherein H1 is less than the height of the baffle (405) and H1 is greater than H2.

6. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 5, characterized in that: An auxiliary spreading system is also provided on the conveyor belt (1). The auxiliary spreading system includes a position detection module, a storage execution module, and a lowering isolation module. The position detection module includes a displacement sensor installed in the temporary storage frame (402) and a photoelectric sensor installed on the side plate (3) at the connection position between the low horizontal part (101) and the inclined part (102). It is used to calculate the displacement distance of each temporary storage frame (402) after passing the photoelectric sensor and obtain the position of the temporary storage frame (402) on the conveyor belt (1). The storage execution module is signal-connected to the position detection module. When the temporary storage frame (402) is about to reach the high horizontal part (103), it lifts the temporary storage frame (402) to the surface of the conveyor belt (1). The lowering isolation module is signal-connected to the position detection module. When the temporary storage frame (402) is about to reach the inclined part (102), it lowers the temporary storage frame (402) to the lower surface of the conveyor belt (1) to receive the surface primary raw material.

7. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 5, characterized in that: The side plate (3) is equipped with a reverse transmission unit (7), and the reverse transmission unit (7) includes a strip groove (71) provided in the side plate (3) corresponding to the inclined part (102). A screw (74) is installed through the inside of the strip groove (71). The top end of the screw (74) is rotatably connected to a support seat, and a first electric push rod (72) is installed on the top of the support seat. A second electric push rod (73) is installed on the surface of the high horizontal part (103) and is arranged at an angle. The movable end of the second electric push rod (73) is connected to a linkage plate (75). The surface of the linkage plate (75) is slidably connected to the surface of the support seat.

8. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 7, characterized in that: The upright frame (401) has a magnetic groove (10) on the side surface away from the temporary storage frame (402), and a magnetic push bar (9) is fitted inside the magnetic groove (10). An electromagnetic plate (8) and a distance sensor are installed on the top of the magnetic groove (10).

9. The method for brewing baijiu (Chinese liquor) using multi-grain mixed fermentation according to claim 8, characterized in that: The height of the support seat protruding from the surface of the conveyor belt (1) in the same side plate (3) gradually decreases along the direction of the inclined part (102) towards the high horizontal part (103), and the screw (74) is threadedly sleeved in the threaded sleeve that is slidably connected in the strip groove (71).

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