Fermentation sterilization method for preparing rice fermentation filtrate

Abstract

The invention discloses a fermentation sterilization method for preparing rice fermentation filtrate, and belongs to the technical field of biological ferment.The fermentation sterilization method comprises the following steps that S1.1, impurities of rice are separated through a purifying and filtering mechanism, then the rice is put into a grinding machine to be ground, and rice powder is obtained; at the moment, the crushed rice and the desalted deep sea water are uniformly mixed through a stirring mechanism, and the pH value is adjusted and maintained at 5.0-6.2; s1.2, putting the mixture in the step S1.1 into a culture dish, uniformly inoculating a saccharomycetes culture solution and protease into the culture dish, and fermenting at 18-23 DEG C for 20-34 hours; and S1.3, sterilizing the fermentation liquor, centrifuging, taking supernate, and filtering to obtain rice fermentation filtrate. The technical problems that rice grains are doped with corresponding impurities and are directly processed, so that normal fermentation of rice is not facilitated, the product quality is greatly influenced, raw materials and water cannot be fully stirred and mixed, and the subsequent fermentation effect is also influenced can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of biological fermentation, and in particular relates to a fermentation sterilization method for preparing rice fermentation filtrate. Background Art

[0002] Rice fermentation filtrate is a kind of fermentation technology based on biological fermentation, using special strains, mainly using yeast or lactic acid bacteria and other microorganisms to ferment rice. This process involves using a large number of enzymes secreted by these microorganisms to convert the protein in rice into small molecular peptides with biological activity and a large number of amino acids, and at the same time converting starch into small molecular oligosaccharides and reducing sugars. This technology is not only used in cosmetic raw materials, but also plays an important role in the field of agricultural product processing.

[0003] The effect of rice fermentation product filtrate on the skin: used in skin care products such as moisturizing, soothing sensitivity, promoting penetration, and anti-aging. It can be directly used as a facial mask liquid or added to the formula to promote the penetration of effective substances, moisturizing, brightening the skin tone, anti-allergic and soothing, improving wrinkles, and has the effect of skin conditioning. It can be made by fermenting rice with Lactobacillus casei, which contains bacteria, various effective ingredients contained in rice itself, and active substances synthesized during the fermentation process. The perfect combination of natural grains and modern fermentation technology gives rice a powerful skin care power, replenishes the moisture and nutrition lacking in the skin, makes cells full of elasticity, and makes the skin hydrated and transparent.

[0004] The rice fermentation filtrate product is a natural rice bran fermentation product, which has whitening effect and can effectively inhibit the growth of melanin. However, during the preparation process of the rice fermentation filtrate, if the rice grains are directly processed with corresponding impurities mixed in them, it is not conducive to the normal fermentation of rice and will greatly affect the product quality. In addition, if in the experimental stage, due to the small demand, a color sorter is used for separation, which is more cost-intensive and not conducive to the high-frequency and small-scale processing of rice. At the same time, the raw materials and water cannot be fully stirred and mixed, which will also affect the subsequent fermentation effect. Therefore, preparing rice fermentation filtrate with good whitening effect has become a technical problem to be solved in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a fermentation sterilization method for preparing rice fermentation filtrate, so as to solve the technical problems that the rice grains are directly processed after being mixed with corresponding impurities, which is not conducive to the normal fermentation of the rice and greatly affects the product quality, and the raw materials and the water body cannot be fully stirred and mixed, which also affects the subsequent fermentation effect.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A fermentation sterilization method for preparing rice fermentation filtrate comprises the following steps: S1.1. The rice is separated from impurities by a purification and filtration mechanism, and then the rice is put into a mill for grinding. At this time, the crushed rice and the desalinated deep ocean water are mixed evenly by a stirring mechanism, and the pH value is adjusted to maintain at 5.0-6.2; S1.2, place the mixture in S1.1 in a culture dish, and evenly inoculate the yeast culture solution and protease on the culture dish, and ferment at 18-23°C for 20-34h; S1.3, sterilize and centrifuge the fermentation liquid, filter the supernatant to obtain rice fermentation filtrate.

[0007] Furthermore, the purification and filtering mechanism includes a separation box with a conical opening, a pull-out box being movably connected to the inner wall of the separation box, a first filter plate being detachably mounted on the inner wall of the pull-out box, a second filter plate being staggered and equidistantly distributed and movably connected to the inner wall of the pull-out box being provided below the first filter plate, the bottom of the second filter plate being connected to a movable plate via a compression spring, and a telescopic adjustment component matching the second filter plates being connected between adjacent second filter plates that are arranged in the same direction.

[0008] Furthermore, the telescopic adjustment assembly includes a first motor fixed on the outer wall of the pull-out box, the output shaft of the first motor passes through the pull-out box and extends to the central gear inside the separation box, both ends of the outer wall of the central gear are meshed with a gear plate that moves in the opposite direction, and one end of the gear plate is correspondingly connected to the adjacent moving plate; Among them, the second filter plates are fixedly connected by a synchronization rod, and the central gear and the gear plate are both provided with a cover fixed on the side wall of the pull-out box. As the first motor is started, the second filter plates arranged in the same direction and adjacent to each other move closer or separate, and the spacing between the second filter plates is expanded or reduced.

[0009] Furthermore, the first motor is a servo motor, and a mounting hole is provided at the connection between the synchronization rod and the second filter plate and is locked and fixed by a stop pin.

[0010] Furthermore, a handle is integrally formed on the outer wall of the pull-out box, and rollers are installed at the bottom of the pull-out box along the length direction of the inner wall of the separation box. Both ends of the side walls of the separation box are provided with limiting grooves connected to the pull-out box.

[0011] Furthermore, the stirring mechanism includes a second motor placed at the top of the cylinder, the output shaft of the second motor extends to the bearing at the bottom end of the inner wall of the cylinder, and the outer wall of the output shaft of the second motor is provided with equally distributed telescopic rods, the length of the telescopic rods from top to bottom is reduced by 5-6cm, and adjacent telescopic rods are connected by fixed rods.

[0012] Furthermore, the mixture in step S1.3 is sterilized by a heating device, the heating device comprising a heating box, a heater fixed on a partition is provided at the bottom end of the inner wall of the heating box, bending snaps are provided on all four sides of the outer wall of the heating box, and an annular groove is provided on the top edge of the heating box and is limitedly connected with a top cover, and a bending rod is provided at the bottom end of the top cover for rotational positioning with the bending snap.

[0013] Furthermore, the heating box and the collector are connected by a U-shaped tube, the inner wall of the collector is provided with a shunt tube connected to the U-shaped tube, and the upper and lower ends of the collector are provided with a water outlet and a water inlet, and the flow direction of the water body is set in the opposite direction to the steam of the fermentation filtrate.

[0014] Furthermore, sealing plugs connected to the heating box and the collector are sleeved and installed at both ends of the U-shape, and a flow cavity connected to the water body is provided between the diversion pipes.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In order to prevent the water from containing a large number of bacteria and other microorganisms, desalinated deep ocean water is mixed with rice. This can ensure the purity of the water and facilitate the effective fermentation of rice by subsequent yeast, thereby improving the quality of rice fermentation filtrate. In addition, controlling and adjusting the pH value is conducive to yeast fermentation through a weakly acidic environment, and protease can convert the protein in rice into small molecular peptides with biological activity and a large amount of amino acids, which is convenient for improving the fermentation quality.

[0016] (2) A purification and filtering mechanism is provided. The rice falls onto the first filter plate through the conical opening, and then slides down on the staggered second filter plates in sequence due to the effect of gravity, so that it can be effectively separated from impurity particles of different sizes. The rice's own weight and the screening effect of the filter plates are used to automatically complete the sorting work without the need for an additional control system, which effectively saves production costs. In addition, the second filter plate can vibrate through the effect of gravity collision, and the screening function is further increased through the vibration effect. In order to adapt to different volumes of rice, the height between the second filter plates can be adjusted by setting a telescopic adjustment component, thereby forming different vibration intensities, so that rice of corresponding volumes can be screened. In addition, the synchronization rod provided on the second filter plate can increase the vibration amplitude of the adjacent second filter plate through the linkage effect, thereby effectively separating the impurities in the rice. In addition, the pull-out box is connected to the separation box for movable limit, so as to facilitate the subsequent cleaning and replacement of impurities on the filter plate.

[0017] (3) A stirring mechanism is provided. When the crushed rice and water are placed in the cylinder, the stirring rod is subjected to greater pressure as it moves toward the bottom. Therefore, a telescopic design is adopted, and the length of the telescopic rod is gradually reduced from top to bottom. This can reduce the pressure on the bottom telescopic rod. At the same time, a fixed rod is provided to ensure that the telescopic rods can move synchronously, preventing the bottom telescopic rod from being unable to rotate stably due to greater pressure, thereby allowing the rice and water to be fully stirred and mixed.

[0018] (4) A heating device is provided to vaporize the fermentation filtrate by heating and sterilize the filtrate. At the same time, the top cover is connected to the heating box by insertion and positioning, and then the bending rod is limitedly connected to the bending bayonet by rotation and limiting, so that the top cover can be connected and sealed while the interior of the heating box can be quickly opened. At the same time, a shunt pipe and a cooling component are provided in the collector, which can quickly cool and liquefy the vaporized filtrate to facilitate collection, prevent volatilization, and improve the collection efficiency of the filtrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic flow diagram of a fermentation sterilization method for preparing rice fermentation filtrate of the present invention; Figure 2 It is a structural schematic diagram of the purification and filtering mechanism of the present invention; Figure 3 It is an internal schematic diagram of the purification and filtering mechanism of the present invention; Figure 4 The present invention Figure 3 A magnified image of point A; Figure 5 It is a cross-sectional schematic diagram of the purification and filtering mechanism of the present invention in the front view direction; Figure 6 Schematic diagram of meshing transmission of the central gear of the present invention; Figure 7 It is a connection schematic diagram of the turbine and worm gear of the present invention; Figure 8 It is a structural schematic diagram of the stirring mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the heating device of the present invention.

[0021] Figure numerals: 1. purification and filtering mechanism; 2. stirring mechanism; 3. separation box; 4. pull-out box; 5. first filter plate; 6. second filter plate; 7. compression spring; 8. movable plate; 9. telescopic adjustment assembly; 10. first motor; 11. central gear; 12. gear plate; 13. synchronization rod; 14. handle; 15. roller; 16. second motor; 17. telescopic rod; 18. fixed rod; 19. heating device; 20. heating box; 21. partition; 22. heater; 23. bending bayonet; 24. top cover; 25. bending rod; 26. collector; 27. diverter pipe; 28. water outlet; 29. ​​water inlet; 30. worm; 31. turning handle; 32. turbine. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Manual Attached Figure 1 , a fermentation sterilization method for preparing rice fermentation filtrate, comprising the following steps: S1.1, the rice is passed through the purification and filtering mechanism 1 to separate impurities, and then the rice is put into the mill for grinding. At this time, the crushed rice and the desalinated deep sea water are mixed evenly through the stirring mechanism 2, and the pH value is adjusted to maintain at 5.0-6.2; S1.2, place the mixture in S1.1 in a culture dish, and evenly inoculate the yeast culture solution and protease on the culture dish, and ferment at 18-23°C for 20-34h; S1.3, sterilize and centrifuge the fermentation liquid, filter the supernatant to obtain rice fermentation filtrate.

[0024] Specifically, step S1.1 is to grind the crushed rice into powder by a mill so that it can be fully mixed with water, so as to facilitate the subsequent full contact and fermentation of yeast. In addition, the specific structure of the mill is a conventional technical means for those skilled in the art, so it is not described in detail here. Moreover, the pH value is adjusted to a weak acid, which can have an antibacterial effect to a certain extent and prevent miscellaneous bacteria from breeding on the rice. In step S1.3, the corresponding microorganisms can be eliminated by heat sterilization, thereby making them lose the ability to grow and reproduce, thereby improving the quality of the finished product of the rice fermentation filtrate. At the same time, the solid particles in the suspension are separated from the liquid by the centrifugal action of the centrifuge, and the supernatant obtained is filtered to finally obtain pure rice fermentation filtrate.

[0025] In order to prevent the water from containing too many bacteria and other microorganisms, desalinated deep ocean water is mixed with rice. This can ensure the purity of the water and is conducive to the effective fermentation of rice by subsequent yeast, thereby improving the quality of rice fermentation filtrate. In addition, controlling and adjusting the pH value and creating a weakly acidic environment are conducive to yeast fermentation, and protease can convert the protein in the rice into small molecule polypeptides with biological activity and a large amount of amino acids, which is convenient for improving the fermentation quality.

[0026] refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 The purification and filtering mechanism 1 includes a separation box 3 with a conical opening, a pull-out box 4 is movably connected to the inner wall of the separation box 3, a first filter plate 5 is detachably mounted on the inner wall of the pull-out box 4, and a second filter plate 6 which is staggered and equidistantly distributed and movably connected to the inner wall of the pull-out box 4 is arranged below the first filter plate 5, and the bottom of the second filter plate 6 is connected to a movable plate 8 through a compression spring 7, and a telescopic adjustment component 9 adapted to the second filter plates 6 which are adjacent and arranged in the same direction is connected.

[0027] The telescopic adjustment component 9 includes a first motor 10 fixed on the outer wall of the pull-out box 4, and the output shaft of the first motor 10 passes through the pull-out box 4 and extends to the central gear 11 inside the separation box 3. Both ends of the outer wall of the central gear 11 are meshed with gear plates 12 that move in the opposite direction, and one end of the gear plate 12 is correspondingly connected to the adjacent movable plate 8; wherein, the second filter plates 6 are fixedly connected by a synchronization rod 13, and the outside of the central gear 11 and the gear plate 12 are both provided with a cover body fixed on the side wall of the pull-out box 4. As the first motor 10 is started, the second filter plates 6 arranged in the same direction and adjacent to each other move closer or separate, and at the same time, the spacing between the second filter plates 6 is expanded or reduced.

[0028] The first motor 10 is a servo motor with a corresponding self-locking mechanism, so it can drive the central gear 11 to rotate and fix it in the corresponding position. At the same time, the gear plates 12 at both ends of the central gear 11 move synchronously in the opposite direction, which can drive the movable plate 8 to move synchronously, thereby changing the spacing between the second filter plates 6 to be adjusted. When the rice falls onto the second filter plate 6, the collision force is used to achieve the effect of vibration screening. The synchronization rod 13 on the second filter plate 6 can play a linkage effect, further increasing the vibration effect of the second filter plate 6, so that impurities can be effectively filtered and separated from the filter plates.

[0029] Specifically, the first motor 10 is a servo motor, and a mounting hole is provided at the connection between the synchronization rod 13 and the second filter plate 6 and is locked and fixed by a stop pin. The automatic separation mechanism can automatically separate the impurities in the rice without the need for an additional power control system, thereby effectively saving resources and avoiding waste of resources, with a high degree of automation and reasonable design.

[0030] A purification and filtering mechanism 1 is provided, and the rice falls onto the first filter plate 5 through the conical mouth, and then slides down on the staggered second filter plates 6 in sequence due to the effect of gravity, so that it can be effectively separated from impurity particles of different sizes, and the self-weight of the rice and the screening effect of the filter plate are used to automatically complete the sorting work, without the need for an additional control system, which effectively saves production costs. In addition, the second filter plate 6 can vibrate on the compression spring 7 through the effect of gravity collision, and the screening function is further increased through the vibration effect. In order to adapt to different volumes of rice, the height between the second filter plates 6 can be adjusted by setting a telescopic adjustment component 9, thereby forming different vibration intensities, so that rice of corresponding volume can be screened. In addition, the synchronization rod 13 provided on the second filter plate 6 can increase the vibration amplitude of the adjacent second filter plate 6 through the linkage effect, so as to effectively separate the impurities in the rice. In addition, the pull-out box 4 is connected to the separation box 3 for active limit, so as to facilitate the subsequent cleaning and replacement of impurities on the filter plate.

[0031] refer to Figure 2 , Figure 3 and Figure 4 The outer wall of the pull-out box 4 is integrally formed with a handle 14, and a roller 15 is installed at the bottom of the pull-out box 4 along the length direction of the inner wall of the separation box 3. Limiting grooves connected to the pull-out box 4 are provided at both ends of the side walls of the separation box 3. Through the pull-out structure design, the purification and filtering mechanism 1 can be conveniently pulled out to the outside, thereby facilitating the subsequent cleaning and replacement of the first filter plate 5 and the second filter plate 6. At the same time, the bottom of the pull-out box 4 is designed in a rolling friction manner, which can effectively reduce the friction between the transmission parts and increase the service life of the device. At the same time, the limiting groove on the inner wall of the separation box 3 can give the pull-out box 4 corresponding supporting force, and can also ensure that the pull-out box 4 is limitedly connected to the inner wall of the separation box 3 to prevent the two from detaching.

[0032] refer to Figure 2 , Figure 3 , Figure 6 and Figure 7, the motor self-locking mechanism can be replaced by a turbine worm assembly, one end of the worm 30 is fixed on the handle 31, and the other end is rotatably connected to the limit circle on the inner wall of the cover body, the outer wall of the worm 30 is connected to the turbine 32 by a threaded engagement transmission, and one end of the turbine 32 is installed on the center gear 11 through a fixed shaft, so that the worm 30 can be rotated by adjustment, and then the turbine 32 is rotated by threaded engagement, thereby driving the center gear 11 to rotate synchronously. Since the turbine worm assembly has "self-locking properties", the turbine 32 can only be driven by the worm 30 to rotate, so it can be ensured that the turbine 32 drives the center gear 11 to be fixed at the corresponding angle position to prevent shaking.

[0033] refer to Figure 8 The stirring mechanism 2 includes a second motor 16 disposed at the top of the cylinder, the output shaft of the second motor 16 extends to the bearing at the bottom end of the inner wall of the cylinder, and the outer wall of the output shaft of the second motor 16 is provided with equidistantly distributed telescopic rods 17, the lengths of the telescopic rods 17 from top to bottom are reduced by 5-6 cm, and adjacent telescopic rods 17 are connected by fixed rods 18.

[0034] A stirring mechanism 2 is provided. When the crushed rice and water are placed in the cylinder, the stirring member is subjected to greater pressure toward the bottom. Therefore, a telescopic design is adopted, and the length of the telescopic rod 17 is gradually reduced from top to bottom. This can reduce the pressure on the bottom telescopic rod 17. At the same time, a fixed rod 18 is provided to ensure that the telescopic rods 17 can move synchronously, preventing the bottom telescopic rod 17 from being unable to ensure stable rotation due to greater pressure, so that the rice and the water can be fully stirred and mixed.

[0035] Specifically, the telescopic rod 17 inside the cylinder acts as a stirring rod, so that the crushed rice can be fully mixed with the water. At the same time, in order to ensure the normal rotation of the telescopic rod 17 and reduce the pressure on the bottom of the telescopic rod 17, the length of the telescopic rod 17 is adjusted by gradually reducing the length, thereby ensuring that the telescopic rod 17 can rotate normally and effectively. In addition, the second motor 16 in the stirring mechanism 2 can also be set to a servo motor as needed, so that the output shaft of the second motor 16 can perform forward and reverse motion, thereby effectively mixing the rice and the water, which is convenient for improving the subsequent fermentation quality.

[0036] refer to Fig. 9 The mixture in step S1.3 is sterilized by a heating device 19, the heating device 19 comprises a heating box 20, a heater 22 fixed on a partition 21 is provided at the bottom end of the inner wall of the heating box 20, bending bayonet 23 is provided around the outer wall of the heating box 20, and an annular groove is provided at the top edge of the heating box 20 and a top cover 24 is limitedly connected, and a bending rod 25 is provided at the bottom end of the top cover 24 for rotational positioning with the bending bayonet 23.

[0037] The heating box 20 and the collector 26 are connected by a U-shaped tube. The inner wall of the collector 26 is provided with a shunt tube 27 connected to the U-shaped tube, and the upper and lower ends of the collector 26 are provided with a water outlet 28 and a water inlet 29. The flow direction of the water body is set in the opposite direction to the steam of the fermentation filtrate. Sealing plugs connected to the heating box 20 and the collector 26 are installed at both ends of the U-shape, and a flow cavity connected to the water body is provided between the shunt tubes 27.

[0038] The structural design of the cooling assembly in the collector 26 can make the flow direction of the cooling water opposite to the flow direction of the steam of the fermentation filtrate. The advantage of this is that the cooling water can fully exchange heat with the steam during the flow process, thereby effectively reducing the temperature of the steam and promoting its condensation. In addition, this design can ensure that the liquid and the gas are in full contact, and the cooling is better. Especially when the condensing assembly is water-cooled, attention must be paid to the inlet and outlet directions of the cooling water, especially when the condenser is placed vertically, the bottom-in and top-out method can ensure that the cooling water fills the entire condenser tube, thereby improving the cooling efficiency. In addition, the collector 26 is provided with a plurality of shunt pipes 27 and flow chambers, which maximize the use of the space volume, and can further fully contact the steam of the fermentation filtrate with the cooling water, so as to facilitate the full cooling and liquefaction of the gasified filtrate, thereby facilitating the collection work.

[0039] By extension, when the directions of the water outlet 28 and the water inlet 29 are not correct, that is, the flow direction of the cooling water is incorrect, for example, in from the top and out from the bottom, it may cause the condensed water to gather at the bottom of the pipe under the action of gravity, making it impossible for the air in the diverter pipe 27 to be discharged, resulting in uneven heating, and in severe cases, it may even cause the diverter pipe 27 to rupture, thereby affecting the normal use of the device.

[0040] A heating device 19 is provided, and the fermentation filtrate can be vaporized by heating and the filtrate can be heated and sterilized. At the same time, the top cover 24 is first connected to the heating box 20 by insertion and positioning, and then the bending rod 25 is limitedly connected to the bending bayonet 23 by rotation and limiting, so that the top cover 24 can be connected and sealed while the interior of the heating box 20 can be quickly opened. At the same time, a shunt pipe 27 and a cooling component are provided in the collector 26, which can quickly cool and liquefy the vaporized filtrate to facilitate collection, prevent volatilization, and improve the collection efficiency of the filtrate.

[0041] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fermentation sterilization method for preparing rice fermentation filtrate, characterized in that: The steps include: S1.

1. The rice is passed through a purification and filtering mechanism (1) to separate impurities, and then the rice is put into a grinding machine for grinding. At this time, the ground rice and the desalinated deep ocean water are mixed evenly through a stirring mechanism (2), and the pH value is adjusted to maintain at 5.0-6.2; S1.2, place the mixture in S1.1 in a culture dish, and evenly inoculate the yeast culture solution and protease on the culture dish, and ferment at 18-23°C for 20-34h; S1.3, sterilizing and centrifuging the fermentation liquid, filtering the supernatant to obtain rice fermentation filtrate; The purification and filtering mechanism (1) comprises a separation box (3) with a conical opening, the inner wall of the separation box (3) being movably connected to a pull-out box (4), a first filter plate (5) being detachably mounted on the inner wall of the pull-out box (4), second filter plates (6) being staggered and equidistantly distributed and movably connected to the inner wall of the pull-out box (4) being arranged below the first filter plate (5), the bottom of each of the second filter plates (6) being connected to a movable plate (8) via a compression spring (7), and a telescopic adjustment component (9) matching the second filter plates (6) being connected between adjacent second filter plates (6) arranged in the same direction.

2. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 1, characterized in that: The telescopic adjustment assembly (9) comprises a first motor (10) fixed on the outer wall of the drawer box (4), the output shaft of the first motor (10) passes through the drawer box (4) and extends to a central gear (11) inside the separation box (3), both ends of the outer wall of the central gear (11) are meshed with a gear plate (12) that moves in the opposite direction, and one end of the gear plate (12) is correspondingly connected to an adjacent moving plate (8); The second filter plates (6) are fixedly connected via a synchronization rod (13), and the central gear (11) and the gear plate (12) are both provided with a cover body fixed on the side wall of the drawer box (4). When the first motor (10) is started, the second filter plates (6) arranged in the same direction and adjacent to each other move closer to or away from each other, and at the same time, the spacing between the second filter plates (6) is expanded or reduced.

3. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 2, characterized in that: The first motor (10) is a servo motor, and a mounting hole is provided at the connection between the synchronization rod (13) and the second filter plate (6), and locking and fixing are achieved by a stop pin.

4. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 1, characterized in that: The outer wall of the pull-out box (4) is integrally formed with a handle (14), and a roller (15) is installed at the bottom end of the pull-out box (4) along the length direction of the inner wall of the separation box (3), and both ends of the side wall of the separation box (3) are provided with limit grooves connected to the pull-out box (4).

5. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 1, characterized in that: The stirring mechanism (2) comprises a second motor (16) disposed at the top end of the cylinder, the output shaft of the second motor (16) extending to a bearing at the bottom end of the inner wall of the cylinder, and the outer wall of the output shaft of the second motor (16) is provided with equidistantly distributed telescopic rods (17), the lengths of the telescopic rods (17) decreasing from top to bottom by 5-6 cm, and adjacent telescopic rods (17) are connected by fixing rods (18).

6. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 1, characterized in that: The mixture in step S1.3 is sterilized by a heating device (19), wherein the heating device (19) comprises a heating box (20), wherein a heater (22) fixed on a partition (21) is provided at the bottom end of the inner wall of the heating box (20), and bending snap-fits (23) are provided on all four sides of the outer wall of the heating box (20), and an annular groove is provided at the top edge of the heating box (20) and a top cover (24) is limitedly connected thereto, and a bending rod (25) is provided at the bottom end of the top cover (24) for rotationally positioning with the bending snap-fit ​​(23).

7. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 6, characterized in that: The heating box (20) and the collector (26) are connected via a U-shaped tube, the inner wall of the collector (26) is provided with a shunt tube (27) connected to the U-shaped tube, and the collector (26) is provided with a water outlet (28) and a water inlet (29) at the upper and lower ends, and the flow direction of the water body is arranged in the opposite direction to the steam of the fermentation filtrate.

8. The fermentation sterilization method for preparing rice fermentation filtrate according to claim 7, characterized in that: Both ends of the U-shape are sleeved with sealing plugs connected to the heating box (20) and the collector (26), and a flow cavity connected to the water body is provided between the diverter pipes (27).

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