Intelligent regulation system for solid-state fermentation production process and application thereof

Abstract

An intelligent regulation system for a solid-state fermentation production process and the application thereof. The system comprises: a set of fermentation containers, a storage device, a fed-batch system and a control system. Taking an existing fermentation pit, which is connected to a storage device, as a basis, by means of additionally providing a liquid collection tank, a pump, a pressure gauge, a sensor, a spraying recycling device, etc., to constitute an intelligent collection and circulation regulation system for a fermentation liquid product, the technical problems in the prior art of the labor intensity being high, the working efficiency being low, drainage of a fermentation liquid product being incomplete and the distillation efficiency of fermenting grains being affected due to the need for manually scooping the fermentation liquid product for recycling are solved, thereby implementing an automatic function of the recycling of fermentation liquid products, and achieving the goal of facilitating the collection and recycling of the fermentation liquid products.

Description

Intelligent control system for solid-state brewing production process and application TECHNICAL FIELD

[0001] The present application relates to an intelligent control system for solid-state brewing production process and application, and belongs to the technical field of liquor production equipment design and construction. BACKGROUND

[0002] Fermentation liquid product is the free water produced by microbial metabolism and deposited at the bottom of the brewing container during the solid-state brewing process of food, which contains alcohol, acid, aldehyde and other aroma substances, beneficial microorganisms, sugar substances, nitrogen compounds, and a small amount of tannin and pigment. During the fermentation process, the water, substances and microorganisms in the brewing container continuously migrate due to the downward leakage of the fermentation liquid product, resulting in the gradual formation of a continuous and non-uniform substrate of substances and energy in the fermented grains, and this non-uniform condition is continuously intensified with the extension of the fermentation time, leading to large differences in biological and physicochemical indicators between the upper, middle and lower layers of the fermented grains, and thus causing significant differences in the quality of the produced brewing food. At the same time, since the fermentation liquid product plays an important role in the aging and maintenance of pit mud, it also leads to large differences in the quality of the pit mud at the bottom of the brewing container and the lower layer of the pit wall and the upper and middle layers of the pit mud, which further affects the quality of the brewing food produced by the fermented grains at different levels.

[0003] Traditional fermented foods are foods processed by fermentation technology using microorganisms in ancient China. They have many varieties, the most important of which is liquor, vinegar, sauce and soy sauce, which are also essential brewing condiments in Chinese life. In addition, pickled vegetables, fermented bean curd, cheese and other fermented foods are also traditional foods widely loved by Chinese people.

[0004] Taking liquor as an example, at present, major liquor companies usually use fermentation liquid products for back-bottom pot redistillation, stirred-grain back-pit fermentation, etc. During liquor production, the fermentation liquid product is usually collected by manually dripping into the pit, then transferred to the destination for collection, which has the problems of high labor intensity, low work efficiency, incomplete dripping of fermentation liquid product, and impact on the distillation efficiency of fermented grains. At the same time, traditional solid-state liquor fermentation relies heavily on pit pools, especially old pits, which greatly limits the improvement of high-quality liquor production in liquor enterprises. It is also an important technical problem for the liquor industry to make new pits mature as soon as possible and maintain a stable microbial flora.

[0005] At present, there are few devices for effective manual intervention and regulation of the flow of fermentation liquid products in the cellar. In the prior art, only single brewing and fermentation equipment such as CN112126540A, CN201722366U and CN116790329A is provided, but the collection and storage of the product and the parameter regulation during the fermentation process cannot be well automatically controlled, and a large amount of labor cost is required for intervention and control. CN220149575U only solves the storage and collection problem, but cannot regulate various indicators during the front-end fermentation process, and still has defects. At the same time, during the sampling process of the fermentation liquid product, it is often difficult to solve the technical problems of high labor intensity, low work efficiency, incomplete fermentation liquid product, and influence on the distillation efficiency of the fermented grains.

[0006] Therefore, there is an urgent need to find a device that can automatically produce, collect and regulate the indicators of the fermentation liquid product.

[0007] SUMMARY

[0008] In order to solve the above problems, in a first aspect, the present application provides an intelligent regulation system for solid-state brewing production process, which comprises:

[0009] A brewing container group comprising at least three parallel brewing containers, the brewing containers comprising a fermentation pit and a pit cover arranged on the top of the fermentation pit, the bottom of the fermentation pit being provided with a liquid outlet pipe, and the top of the pit cover being provided with a spraying recycling device and a sampling groove;

[0010] A storage device connected in circulation with the brewing container group, the outer surface of the storage device being provided with at least a feeding port, a sampling port, a sight hole, a cooling water inlet, a cooling water outlet, a discharging port, an air inlet and a sewage outlet, and the interior of the storage device comprising a stirrer and a heating device;

[0011] A feeding system connected with the storage device; and

[0012] A control system connected with the brewing container group, the storage device and the feeding system;

[0013] The brewing container group and the storage device are connected in a circulation mode, solid-state brewing is carried out in the brewing container group, the fermented liquid product after solid-state brewing flows into the storage device, then at least part of the backflow liquid in the storage device can flow back to the spraying recycling device of the brewing container group and uniformly spray each brewing container to form a circulation recycling, the fermented liquid product in the storage device can be detected and intelligent control of the solid-state fermentation process can be carried out according to the detection result through the feeding system and the control system; the backflow liquid is a substance with certain viscosity and rich in microorganisms, enzymes and the like to improve the quality of subsequent fermentation.

[0014] Further, at least one small liquid collecting tank is connected between the liquid outlet pipe and the cellar cover of the brewing container, the bottom of the brewing container is connected with the liquid outlet pipe through a large liquid collecting tank, and at least one sampling groove is further arranged on the top of the cellar cover. The large liquid collecting tank and the small liquid collecting tank are connected with the storage device through an electric valve and a feeding pipe. A pressure gauge, a pneumatic three-way ball valve and a feeding pump are arranged on the feeding pipe. The small liquid collecting tank is provided with an inner filter screen and an outer filter screen, and the large liquid collecting tank is provided with a filter plate.

[0015] In some embodiments of the present application, the liquid outlet pipe is a four-way pipe structure. An annular liquid groove is arranged on the periphery of the connection between the fermentation cellar and the cellar cover. The spraying recycling device comprises a plurality of concentric annular spraying pipes mounted on the top of the cellar cover, and a circulation liquid inlet is arranged on each spraying pipe.

[0016] In some embodiments of the present application, the stirrer is a turbine stirrer with disc-type flat blades, and is provided with a defoaming device, wherein the defoaming device is provided with a rake-type defoaming paddle.

[0017] In some embodiments of the present application, the heating device comprises an electric heating pipe arranged along the inner wall of the storage device, and the electric heating pipe is connected with a junction box and a wiring hole on the outer wall of the storage device; the electric heating pipe is a vertical tube structure, and the wiring hole adopts a threaded surface.

[0018] In some embodiments of the present application, a baffle is arranged on the inner wall of the storage device. The top of the storage device comprises a feeding port corresponding to each brewing container, a pressure gauge interface, a lamp mirror assembly, at least one sensor socket and at least one sampling port, and the pressure gauge interface is connected with a pressure gauge.

[0019] In some embodiments of the present application, the discharge port of the storage device is connected with the spraying recycling device on the top of each cellar cover through a discharge pipe. A quick connector, a screw pump and a four-way valve are arranged on the discharge pipe.

[0020] Further, the flow-adding system comprises a flow-adding tank and a constant flow pump connected with the flow-adding tank, and the constant flow pump is connected with the storage device.

[0021] In some embodiments of the present application, the flow-adding tank is provided with a flow-adding opening and a window, and the bottom of the flow-adding tank is provided with a flow-adding outlet connected with a needle valve, and the needle valve is connected with the constant flow pump.

[0022] In the second aspect, the present application provides application of the intelligent control system for solid-state brewing process in brewing processes of various flavor liquors, soy sauce, pickles, vinegar, fermented soybean, fermented bean curd, yogurt and miso.

[0023] The present application has the following advantages:

[0024] (1) The present application is based on the existing brewing pit, connected with the storage device, and the intelligent collection and circulation control system of the fermentation liquid product is constructed by increasing the setting of the liquid collecting groove, pump body, pressure gauge, sensor and spraying recycling device, which solves the technical problems of high labor intensity, low work efficiency, incomplete fermentation liquid product and influence on distillation efficiency caused by manual scooping of the fermentation liquid product for reuse in the prior art, realizes the automation function of reuse of the fermentation liquid product, and achieves the purpose of convenient collection and reuse of the fermentation liquid product. Moreover, the present application can control the indexes of the fermentation liquid product, the spraying indexes and the indexes in the pit through the flow-adding system, so as to achieve better superior product rate.

[0025] (2) The spraying recycling device provided by the present application can adopt a rectangular grid layout, which can improve the uniformity of drip irrigation, and does not involve rotating motors and other components, is easy to install, will not enter air to affect fermentation, and is more suitable for the drip irrigation scene of the traditional pit fermentation.

[0026] (3) The present application has high control precision for the amount of feed, and through the setting of the storage device sight hole, feed opening, pressure gauge interface, lamp mirror assembly, sensor socket and sampling port, labor personnel can clearly understand the remaining amount of nutrients in the storage tank.

[0027] (4) The present application can increase the ethyl hexanoate content of Luzhou-flavor liquor by 23.37 mg / 100 mL, increase the total acid by 0.08 g / L, and the ratio of ethyl hexanoate and ethyl lactate in the liquor is more coordinated compared with the control group. The liquor yield is increased by 3.69%, and the superior rate is increased by 12.92%, which is very obvious.

[0028] (5) When the present application adds acetic acid fermentation liquid to the light-flavor liquor, the ethyl acetate in the liquor is increased by 88.43%, and the total ester is increased by 27.93%. In addition, the content of acetic acid in the liquor is also increased, and the content of sour substances in the light-flavor liquor is also increased.

[0029] (6) The application applies the Rhizopus esterification enzyme technology to the low-salt solid-state fermentation method for soy sauce production, so as to increase the ester aroma substances of soy sauce by enzyme method, and the content of volatile ester of base soy sauce can be significantly increased to 7.918 mg / 100 ml, which is increased by 39.3% compared with the control product.

[0030] (7) The application can add acidic protease to vinegar, so as to increase the content of alcohol and amino acid nitrogen, and the optimal acidic protease enzyme activity reaches the highest alcohol content. At this time, the alcohol yield is increased by 23.9%, and the amino acid nitrogen content is increased by 240.7%.

[0031] (8) The application can control the inoculation amount of high-degradation nitrite lactic acid bacteria to be 0.375%, and the inoculation amount of high-ester-producing yeast bacteria to be 0.5%, so that the types and contents of flavor substances of pickles are relatively more, and 6 kinds of organic acids and 41 kinds of volatile flavor substances can be detected. BRIEF DESCRIPTION OF DRAWINGS

[0032] Fig. 1 is a schematic diagram of the overall structure in an embodiment of the application.

[0033] Fig. 2 is a structural cross-sectional view of a brewing container in an embodiment of the application.

[0034] Fig. 3 is a structural top view of a brewing container in an embodiment of the application.

[0035] Fig. 4 is a structural cross-sectional view of a spraying and recycling device in an embodiment of the application.

[0036] Fig. 5 is a structural cross-sectional view of a storage device in an embodiment of the application.

[0037] Fig. 6 is a structural top view of a storage device in an embodiment of the application.

[0038] Fig. 7 is a structural schematic diagram of a feeding system in an embodiment of the application.

[0039] Fig. 1: motor, 2: feed inlet, 3: cooling water outlet, 4: baffle, 5: stirring impeller, 6: sensor assembly, 6-1: sampling port, 6-2: first sensor socket, 6-3: second sensor socket, 6-4: third sensor socket, 7: air inlet, 8: blowdown port, 9: discharge port, 10: cooling water inlet, 11: electric heating tube, 12: junction box, 13: wiring hole, 14: defoamer, 15: stirring shaft, 16: sight glass, 17: first make-up port, 18: second make-up port, 19: third make-up port, 20: defoamer motor port, 21: pressure gauge interface, 22: lamp mirror assembly, 23: spray recycling device, 24: cellar cover, 25: annular liquid tank wall, 26: annular liquid tank, 27: fermentation cellar, 28: inner filter screen, 29: small liquid collection tank, 30 filter plate, 31: liquid outlet pipe, 32: circulating liquid inlet, 33: sampling tank, 34: brewing container, 35: quick coupling, 36: four-way valve, 37: screw pump, 38: pressure gauge, 39: pneumatic three-way ball valve, 40: electric valve, 41: large liquid collection tank, 42: filter hole, 43: manual ball valve, 44: filter plate, 45: storage device, 46: flow addition port, 47: flow addition tank, 48: flow addition discharge port, 49: sight window, 50: constant flow pump, 51: needle valve, 52: control system. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, the "first", "second" are only used to distinguish the same type of components / parts in different positions or different characteristics, and have no other limiting meaning; the "upper" refers to the direction of each component away from the ground, and the "lower" refers to the direction of each component away from the ground.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0044] Embodiment 1

[0045] As shown in FIGS. 1-4, the present application provides a solid-state brewing production process intelligent regulation system, which comprises:

[0046] A brewing container group comprises three parallel brewing containers, which comprise a fermentation tank 27 and a tank cover 24 arranged on the top of the fermentation tank 27, the bottom of the fermentation tank 27 is provided with a liquid outlet pipe 31, and the top of the tank cover 24 is provided with a spraying recycling device 23 and a sampling groove 33; two small liquid collecting grooves 29 at different heights are connected between the liquid outlet pipe 31 and the tank cover 24, and the bottom of the brewing container is connected with the liquid outlet pipe 31 through a large liquid collecting groove 41, and at least one sampling groove is further arranged on the top of the tank cover 24. The liquid outlet pipe 31 is a four-way pipe structure to facilitate the flow of fermentation liquid products into different devices. The fermentation tank 27 is provided with an annular liquid groove 26 on the periphery of the connection with the tank cover 24. The spraying recycling device 23 comprises a plurality of concentric annular spraying pipes arranged on the top of the tank cover 24, and a sampling groove 33, and a circulating liquid inlet 32 is arranged on each spraying pipe.

[0047] The sampling groove 33 is a circular opening flip cover connected with a water groove around the flip cover, and is connected with the top of the tank cover 24 in a welded manner, mainly for sampling and sealing effect.

[0048] The large liquid collecting groove 41 and the small liquid collecting groove 29 are connected with the storage device 45 through a feeding pipe, and a pressure gauge 38, a pneumatic three-way ball valve 39 and a feeding pump are arranged on the feeding pipe. The small liquid collecting groove 29 is provided with an inner filter screen 28 and an outer filter screen 44, and the large liquid collecting groove 41 is provided with a filter plate 30; one side of the bottom of the large liquid collecting groove 41 is provided with a filter hole 42, and the large liquid collecting groove 41 is connected with the liquid outlet pipe 31 to facilitate the control of the fermentation liquid product in and out of the large liquid collecting groove 41 at any time; the inner filter screen 28, the outer filter screen 44 and the filter plate 30 are used for filtering solid substances in the fermentation liquid product

[0049] As shown in Figure 5-6, the storage device 45, with the brewing container group cycle connection, the outer surface of the storage device 45 has a feed port 2, a sight glass 16, a cooling water inlet 10, a cooling water outlet 3, a discharge port 9, a sensor assembly 6, an air inlet 7 and a blowdown port 8, the inside of the storage device 45 includes a stirrer, a heating device; the stirrer is a turbine stirrer with a stirring shaft 15 and a stirring impeller 5, and is provided with a defoamer 14, the stirring impeller 5 is a disc type flat blade, the defoamer 14 is provided with a rake type defoaming paddle; the heating device includes an electric heating tube 11 arranged along the inner wall of the storage device 45, the electric heating tube 11 is connected with the junction box 12 and the wiring hole 13 on the outer wall of the storage device 45; the electric heating tube 11 is a vertical tube structure, and the wiring hole 13 adopts a threaded surface; air is blown into the equipment through the air inlet 7 to achieve better uniformity; at the same time, the liquid can be heated and temperature controlled through the electric heating tube 11; the liquid parameters in the storage equipment can be monitored and controlled through the control system 52;

[0050] The inner wall of the storage device 45 is provided with a baffle 4, which can increase the fluid turbulence, promote the uniform distribution of oxygen, nutrients and microorganisms, and improve the fermentation efficiency; can prevent the deposition of solid particles in the fermentation broth at the bottom of the tank, avoid the stratification of the fermentation broth and the uneven fermentation; help to disperse the heat generated during the fermentation process, maintain the temperature stability of the fermentation process, and prevent excessive foam from causing tank overflow; can promote the extraction of metabolic products, improve the yield of products, promote mixing and metabolism, and prevent precipitation and foam.

[0051] The top of the storage device 45 includes a first feeding port 17, a second feeding port 18, a third feeding port 19, a defoaming motor port 20, a pressure gauge interface 21, a lamp mirror assembly 22, a first sensor socket 6-2, a second sensor socket 6-3, a third sensor socket 6-4, a sampling port 6-1 corresponding to each brewing container, and the pressure gauge interface 21 is connected with a pressure gauge.

[0052] The size standard of the first feeding port, the second feeding port and the third feeding port is PBE 1", and the connection surface is a clamp. The size standard of the defoaming electrode port is RD28-1 / 8, and the connection surface is a thread, which is welded with the top of the tank, and the function is to prevent the foam generated during the fermentation or reaction process from blocking the pipeline or overflowing. The connection surface of the pressure gauge interface is in the form of a thread.

[0053] The feed inlet has a nominal size of DN25, and is connected to the tank body in the form of RF by welding. The cooling water inlet and outlet have a nominal size of DN50, and are welded to the tank body in the form of RF. The sampling port 6-1, the first sensor port 6-2, the second sensor port 6-3, and the third sensor port 6-4 are located at the same height on the same side of the tank body, and are all welded to the tank body, with a size standard of R1 / 2 and a threaded connection. The difference is that the sampling port 6-1 is connected perpendicularly to the tank body, while the sensor assembly 6 is connected to the tank body at an angle of 75°. The purpose of the inclined arrangement of the sensor assembly 6 is to prevent the fermentation liquid from seeping in, and to protect the sensor from corrosion or short circuit risk. In addition, this design helps to maintain hygiene, reduce the accumulation of bacteria and microorganisms around the port, and facilitate cleaning and disinfection. At the same time, the inclined port facilitates installation and maintenance, prevents misoperation, optimizes signal transmission, and reduces interference and damage caused by cable contact with the tank body. Therefore, this angle design ensures that the sensor can work safely and effectively, while facilitating operation and maintenance, and maintaining the hygiene and stability of the fermentation process.

[0054] The gas inlet is a single-hole pipe venting device with a nominal size of DN50 and an RF connection surface, which is welded to the tank body. The blowdown port 8 and the discharge port 9 are integrated, both with a nominal size of DN32.

[0055] As shown in FIG. 7, the feeding system is connected to the storage device 45. The feeding system includes a feeding tank 47, a constant flow pump 50 connected to the feeding tank 47, the constant flow pump 50 being connected to the storage device 45, the feeding tank 47 being provided with a feeding inlet 48 and a viewing window 49 on the surface, the feeding tank 47 having a feeding discharge port 48 at the bottom, the feeding discharge port 48 being connected to a needle valve 51, the needle valve 51 being connected to the constant flow pump 50, and the constant flow pump 50 being connected to the first replenishment port 17, the second replenishment port 18, and the third replenishment port 19 of the storage device 45. The needle valve 51 controls the flow of liquid.

[0056] The control system 52 is connected to the brewing container group, the storage device 45, and the feeding system.

[0057] The brewing container group is connected to the feed inlet 2 of the storage device 45 through a feed pipe, and the discharge port 9 of the storage device 45 is connected to the spray recycling device 23 on the top of each cellar cover through a discharge pipe, thereby forming a circulation connection.

[0058] Example 2

[0059] The system of Example 1 is used for solid-state brewing and intelligent collection and circulation control of the fermented liquid product. The method mainly includes solid-state brewing in the brewing container group, flowing of the fermented liquid product after solid-state brewing into the storage device, and then at least part of the backflow liquid in the storage device 45 can be backflowed from the storage device to the spraying recycling device of the brewing container group and uniformly sprayed on each brewing container to form a circulation recycling. During the process, the fermented liquid product in the storage device can be detected and intelligent control of the solid-state fermentation process can be performed through the feeding system and the control system according to the detection result.

[0060] In this embodiment, the method specifically includes the following steps:

[0061] Step one: automatic extraction, collection and storage: the materials required for fermentation of the fermentation product are added in each brewing container for brewing and fermentation, and then the fermented liquid product is collected in the large liquid collecting tank 41. First, the fermented liquid product is extracted by the screw pump 37 on the feeding pipeline and enters the storage device 45 through the feeding port 2. During the process, the flow rate and pressure can be controlled by the control system 52, the pneumatic three-way ball valve 39, the electric valve 40 and the pressure gauge 38. Second, the middle and upper layer fermented liquid product collected in the small liquid collecting tank 29 can also be extracted by the screw pump 37 on the feeding pipeline and enter the storage device 45 through the feeding port 2. During the process, the flow rate, pH and pressure can be controlled by the control system 52, the pneumatic three-way ball valve 39, the electric valve 40, the pressure gauge 38, the constant flow pump 50 and the needle valve 51.

[0062] Step two: the in-tank pressure, volume, oxygen content, pH and temperature indicators in the storage device 45 are monitored by the control system 52, the pressure gauge interface 21, the lamp mirror assembly 22, the first sensor socket 6-2, the second sensor socket 6-3, the third sensor socket 6-4 and the sampling port 6-1, so as to further adjust the pneumatic three-way ball valve 39, the electric valve 40, the pressure gauge 38, the constant flow pump 50 and the needle valve 51 according to the indicators to obtain the pressure, filling degree, dissolved oxygen content, pH and temperature information in the tank.

[0063] Step three: when it is judged by the lamp mirror assembly 22 that the fermented liquid product in the storage device 45 reaches the lower end of the defoaming device 14, the motor 1 in the storage device 45 is turned on for stirring, which can drive the stirring shaft 15 and the stirring impeller 5 to uniformly stir the liquid and break the bubbles. At the same time, the air inlet 7 is opened for blowing, which can mix the liquid. Then the defoaming device 14 is opened for eliminating bubbles, which can prevent overflow from the tank top. Finally, the electric heating tube 11 or the cooling water inlet 10 is opened for heating or cooling, which can maintain a certain temperature.

[0064] Step four: recycle: the backflow liquid in the storage device 45 after the regulation of the microorganisms, enzymes, etc. by the flow-adding system to promote the formation of subsequent fermentation quality substances is pumped out of the discharge port 9 by the screw pump 37 on the discharge pipeline and then pumped into the spraying recycle device 23 at the top of each brewing container, enters the spraying pipe through each circulating liquid inlet 32, and uniformly sprays the inside of the brewing container through the spraying pipe, thereby forming a circulating recycle.

[0065] Example 3: Regulation of Luzhou-flavor solid-state liquor fermentation

[0066] The system of Example 1 and the method of Example 2 are used.

[0067] Before operation, esterification red yeast rice, edible alcohol (to make the ethanol content 15% to 20%), and composite organic acid are added to the flow-adding tank 47 through the flow-adding port 46.

[0068] In step one, highland barley is put into the brewing container as the main raw material, and medium-temperature culture Daqu is used for fermentation. The Daqu is cultured with barley and wheat as raw materials and a certain proportion of peas; in step two, the pH needs to be adjusted to 5 to 6; in step three, the temperature needs to be adjusted to 35℃; and the flow-adding system can use the esterification yellow water produced by the flow-adding esterification red yeast rice; in step four, the yellow water in the storage device 45 is pumped out of the discharge port 9 to the spraying recycle device 23 for recycling and uniform spraying.

[0069] Finally, the content of ethyl hexanoate in the Luzhou-flavor liquor is increased by 23.37 mg / 100 mL, the total acid is increased by 0.08 g / L, the proportion of ethyl hexanoate and ethyl lactate in the liquor is more coordinated compared with the control group, the liquor yield is increased by 3.69%, and the superior liquor yield is increased by 12.92%, which is very obvious.

[0070] Example 4: Regulation of solid-state liquor fermentation of Qing-flavor

[0071] The system of Example 1 and the method of Example 2 are used.

[0072] Before operation, low-normal-propyl alcohol yeast liquid is added to the flow-adding tank 47 through the flow-adding port 46.

[0073] In step one, highland barley, new material, distiller's grains, Daqu, auxiliary material, and water are put into the brewing container and mixed uniformly according to the proportion for fermentation; in step two, the pH needs to be adjusted to 3 to 8; in step three, the temperature needs to be adjusted to 20 to 35℃, the glucose content needs to be 2% to 25%, and the ethanol volume fraction needs to be 0 to 12%; and the flow-adding system can flow-add low-normal-propyl alcohol yeast liquid into the storage container 45; in step four, the backflow liquid in the storage device 45 is pumped out of the discharge port 9 to the spraying recycle device 23 for recycling and uniform spraying.

[0074] Finally, the content of ethyl acetate in the liquor can be increased by 88.43%, and the total ester content can be increased by 27.93%. In addition, the content of n-propanol is significantly reduced by 29.9%, the liquor yield (34.85%) is increased, and the total amount of isobutanol, isoamyl alcohol and fusel oil (including n-propanol, isobutanol and isoamyl alcohol) is reduced by 6.6%, 4.4% and 11.7% respectively, which increases the content of sour substances in the aroma type liquor.

[0075] Example 5: Regulating the production of soy sauce by low-salt solid-state fermentation method

[0076] The system of Example 1 and the method of Example 2 are used.

[0077] Before operation, Rhizopus esterases are added to the flow-adding tank 47 through the flow-adding port 46.

[0078] In the step one, the soybean meal, wheat flour and bran are put into the brewing container in a ratio of 6:2:2, and 1.3 times the amount of water and koji are added for fermentation; in the step two, the pH needs to be adjusted to 5-7℃; in the step three, the temperature needs to be adjusted to 45℃; and the flow-adding system can add Rhizopus esterases to the storage container 45 to control the content to be 1%; in the step four, the backflow liquid in the storage device 45 is pumped out from the discharge port 9 to the spraying recycling device 23 for recycling and uniform spraying.

[0079] Finally, the ester aroma substances of soy sauce can be increased, and the content of volatile esters of the base soy sauce can be significantly increased to 7.918 mg / 100 ml, which is increased by 39.3%.

[0080] Example 6: Regulating aged vinegar

[0081] The system of Example 1 and the method of Example 2 are used.

[0082] Before operation, Aspergillus niger acid protease is added to the flow-adding tank 47 through the flow-adding port 46.

[0083] In the step one, edible corn starch, bran, rice husk, bacterial inhibitor, vinegar essence, edible salt, sodium benzoate and production water are put into the brewing container for fermentation; in the step two, the pH needs to be adjusted to 2-5; in the step three, the temperature needs to be adjusted to about 45℃; and the flow-adding system can add Aspergillus niger acid protease to the storage container 45; in the step four, the backflow liquid in the storage device 45 is pumped out from the discharge port 9 to the spraying recycling device 23 for recycling and uniform spraying.

[0084] Finally, the alcohol and amino acid nitrogen content can be improved, and the optimal acid protease activity is achieved when the alcohol content reaches the highest value, at this time, the alcohol yield is improved by 23.9%, and the amino acid nitrogen content is improved by 240.7%, thereby improving the flavor and quality of the aged vinegar.

[0085] Example 7: Regulating fermentation of pickles

[0086] The system of Example 1 and the method of Example 2 are used.

[0087] Before operation, the bamboo leaf flavonoid solution is added to the flow tank 47 through the flow feeding port 46.

[0088] In the step one, the Chinese cabbage, salt, sugar, vinegar, sesame oil, dried chili, green onion and ginger are put into the brewing container for fermentation; in the step two, the pH is adjusted to 4-5; in the step three, the temperature is adjusted to about 15℃; the flow feeding system can feed the bamboo leaf flavonoid solution into the storage container 45; in the step four, the backflow liquid in the storage device 45 is pumped out from the discharge port 9 to the spray recycling device 23 for recycling and uniform spraying.

[0089] Finally, when the inoculation amount of the high degradation nitrite lactobacillus is 0.375% and the inoculation amount of the high ester-producing yeast is 0.5%, the flavor substances of the pickles are relatively more, and 6 kinds of organic acids and 41 kinds of volatile flavor substances can be detected.

[0090] Although the present application has been disclosed with reference to the preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present application, therefore, the protection scope of the present application should be defined by the claims.

Claims

1. A solid-state brewing production process intelligent regulation system, characterized in that, The system comprises: a brewing container group comprising at least three parallel brewing containers, the brewing containers comprising fermentation pits (27) and pit covers (24) arranged on the top of the fermentation pits (27), the bottom of the fermentation pits (27) being provided with liquid outlet pipes (31), and the top of the pit covers (24) being provided with spray recycling devices (23) and sampling grooves (33); a storage device (45) connected in circulation with the brewing container group, the outer surface of the storage device (45) being provided with at least a feeding port (2), a sampling port (6-1), a sight glass (16), a cooling water inlet (10), a cooling water outlet (3), a discharging port (9), an air inlet (7) and a blowdown port (8), and the interior of the storage device comprising a stirrer and a heating device; a feeding system connected with the storage device (45); and a control system (52) connected with the brewing container group, the storage device (45) and the feeding system; wherein the brewing container group and the storage device (45) are connected in circulation, solid-state brewing is carried out in the brewing container group, the fermented liquid product after solid-state brewing flows into the storage device, and then at least part of the backflow liquid in the storage device (45) can backflow from the storage device (45) to the spray recycling devices (23) of the brewing container group and uniformly spray each brewing container to form a circulation recycling, and the fermented liquid product in the storage device (45) can be detected and intelligently controlled through the feeding system and the control system (52) according to the detection result.

2. The intelligent regulation system for solid-state brewing production process according to claim 1, characterized in that, The brewing container is connected with at least one small liquid collecting groove (29) between the liquid outlet pipe (31) and the pit cover (24), and the bottom of the brewing container is connected with the liquid outlet pipe (31) through a large liquid collecting groove (41), and the top of the pit cover (24) is further provided with at least one sampling groove.

3. The intelligent regulation system for solid-state brewing production process according to claim 2, characterized in that, The large liquid collecting groove (41) and the small liquid collecting groove (29) are both connected with the storage device through a feeding pipeline and an electric valve (40).

4. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, A pressure gauge (38), a pneumatic three-way ball valve (39) and a feeding pump are arranged on the feeding pipeline.

5. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The small liquid collecting groove (29) is provided with an inner filter screen (28) and an outer filter screen (44), and the large liquid collecting groove (41) is provided with a filter plate (30).

6. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The liquid outlet pipe (31) has a four-way pipe structure.

7. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The fermentation pit (27) is provided with an annular liquid groove (26) at the periphery of the connection with the pit cover (24).

8. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The spray recycling device (23) comprises a plurality of concentric annular spray pipes arranged on the top of the pit cover (24), and each of the spray pipes is provided with a circulating liquid inlet (32).

9. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The stirrer is a turbine stirrer with disc-type flat blades and is provided with a defoamer (14) provided with a rake-type defoaming paddle.

10. The intelligent regulation system for solid-state brewing production process according to claim 3, characterized in that, The heating device comprises an electric heating pipe (11) arranged along the inner wall of the storage device (45), and the electric heating pipe (11) is connected with a junction box (12) and a wiring hole (13) on the outer wall of the storage device (45).

11. The intelligent regulation system for solid-state brewing production process according to claim 10, characterized in that, The electric heating pipe (11) has a vertical column structure, and the wiring hole (13) has a threaded surface.

12. The intelligent regulation system for solid-state brewing production process according to claim 1, characterized in that, The inner wall of the storage device (45) is provided with a baffle (4).

13. The intelligent regulation system for solid-state brewing production process according to claim 1, characterized in that, The top of the storage device (45) comprises a feeding port corresponding to each brewing container, a pressure gauge interface (21), a lamp mirror assembly (22), at least one sensor socket, and at least one sampling port, and the pressure gauge interface (21) is connected with a pressure gauge.

14. The intelligent regulation system for solid-state brewing production process according to claim 1, characterized in that, The discharge port (9) of the storage device (45) is connected with a spray recycling device (23) on the top of each cellar cover through a discharge pipeline.

15. The intelligent regulation system for solid-state brewing production process according to claim 14, wherein, A quick connector (35), a screw pump (37) and a four-way valve (36) are arranged on the discharge pipeline.

16. The intelligent regulation system for solid-state brewing production process according to claim 1, wherein, The flow adding system comprises a flow adding tank (47) and a constant flow pump (50) connected with the flow adding tank (47), and the constant flow pump (50) is connected with the storage device (45).

17. The intelligent regulation system for solid-state brewing production process according to claim 16, wherein, The surface of the flow adding tank (47) is provided with a flow adding port (46) and a window (49), the bottom of the flow adding tank (47) is provided with a flow adding discharge port (48), the flow adding discharge port (48) is connected with a needle valve (51), and the needle valve (51) is connected with the constant flow pump (50).

18. The intelligent regulation system of the solid-state brewing production process according to any one of claims 1-17 is applied to the brewing processes of various flavor liquors, soy sauce, pickles, vinegar, fermented soybean, fermented bean curd, yogurt and miso.

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