Continuous fermentation equipment for compound fermented sauce

Abstract

The invention discloses continuous fermentation equipment for compound fermented sauce, and particularly relates to the technical field of food fermention.The continuous fermentation equipment comprises a support, a hydrolysis tank, a fermentation tank and an after-ripening tank are installed on the support from top to bottom in a stepped mode, and the hydrolysis tank and the fermentation tank are communicated through a first spiral pump; the fermentation tank is communicated with the after-ripening tank through a second screw pump. According to the continuous fermentation equipment for the compound fermented sauce, the dynamic extraction circulating device is arranged, flavor precursor substances can be actively extracted, subjected to ultrasonic wall breaking and subjected to membrane filtration and concentration from main fermented mash and then directly conveyed to the after-ripening tank, high-concentration flavor essence is provided for the after-ripening stage, after-ripening reactions such as esterification are greatly promoted, and the quality of the compound fermented sauce is improved. According to the method, the flavor level of the final product is richer, inhibition on main fermentation is relieved by actively removing small molecule byproducts, flavor precursors are forcibly conveyed to an after-ripening environment, the flavor ripening process is accelerated, and the whole fermentation period is shortened.

Description

Technical Field

[0001] This invention relates to the field of food fermentation technology, and in particular to a continuous fermentation device for a compound fermented sauce. Background Technology

[0002] Compound fermented sauces are widely popular due to their rich flavor and ease of use. Traditional production primarily employs a batch fermentation process, completing hydrolysis, primary fermentation, and post-fermentation in a single fermentation tank or vessel. This process has inherent drawbacks: a single environment cannot simultaneously meet the optimal growth and metabolic conditions of different microorganisms (such as proteases, Aspergillus, yeast, and lactic acid bacteria), resulting in low reaction efficiency at each stage and an overall cycle lasting several weeks to months; hydrolysis, primary fermentation, and post-fermentation occur in the same container, leading to mutual constraints between physicochemical environments and insufficient conversion of flavor precursors, making it difficult to form a rich, harmonious, and complex flavor profile; batch operation results in low production efficiency, limited capacity, and significant batch-to-batch product quality fluctuations, leading to low standardization; and the accumulation of small-molecule organic acids, alcohols, and other byproducts during fermentation cannot be separated in a timely manner, potentially inhibiting the activity of beneficial microorganisms or producing undesirable flavors.

[0003] In existing technologies, although there have been attempts to use multiple tanks in series for continuous fermentation, these are usually just simple volume expansion or time extensions. They fail to fundamentally address the biochemical reaction characteristics of each stage of compound sauce fermentation and to precisely design the equipment functions, especially in terms of how to actively intervene in and enhance the material transfer and flavor transformation between different fermentation stages, where there is a lack of effective technical means. Summary of the Invention

[0004] This invention provides a device that can achieve efficient, stable, and continuous fermentation of compound sauces and significantly improve the flavor and quality of the products, effectively solving the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A continuous fermentation device for compound fermented sauce includes a support frame on which a hydrolysis tank, a fermentation tank, and a post-fermentation tank are installed in a stepped manner from top to bottom. The hydrolysis tank and the fermentation tank are connected by a first spiral pump, and the fermentation tank and the post-fermentation tank are connected by a second spiral pump. A third spiral pump is installed at the bottom of the post-fermentation tank, and a feed inlet is installed at the top of the hydrolysis tank. A first stirring mechanism, a second stirring mechanism, and a third stirring mechanism are respectively installed inside the hydrolysis tank, the fermentation tank, and the post-fermentation tank. A dynamic extraction and circulation device is installed outside the fermentation tank. The dynamic extraction and circulation device includes a scooping and filtering assembly and a scraping assembly installed inside the fermentation tank, and a housing installed outside the fermentation tank. A pump body, an ultrasonic treatment assembly, and a membrane filtration assembly are connected sequentially from top to bottom inside the housing. A connecting pipe is installed at the bottom of the membrane filtration assembly and extends through to the post-fermentation tank. The pump body is connected to the scooping and filtering assembly through a delivery pipe.

[0006] Preferably, the hydrolysis tank, fermentation tank and ripening tank are independently provided with a temperature control unit, including a temperature sensor installed on the hydrolysis tank, fermentation tank and ripening tank, a heat preservation jacket arranged outside the hydrolysis tank, fermentation tank and ripening tank, and a heater and a cooler connected with the heat preservation jacket, wherein a spiral channel is formed in the heat preservation jacket, and a heat exchange medium flows in the spiral channel.

[0007] Preferably, the hydrolysis tank, fermentation tank and ripening tank are independently provided with a temperature control unit, including a temperature sensor installed on the hydrolysis tank, fermentation tank and ripening tank, a heat preservation jacket arranged outside the hydrolysis tank, fermentation tank and ripening tank, and a heater and a cooler connected with the heat preservation jacket, wherein a spiral channel is formed in the heat preservation jacket, and a heat exchange medium flows in the spiral channel.

[0008] Preferably, the first stirring mechanism comprises a first motor fixedly installed on the top of the hydrolysis tank, a first main shaft fixedly installed at the output end of the first motor, and a high-shear dispersion disc fixedly installed at the lower end of the first main shaft extending into the hydrolysis tank.

[0009] Preferably, the second stirring mechanism comprises a second motor fixedly installed on the top of the fermentation tank, a second main shaft fixedly installed at the output end of the second motor, and a plurality of axial flow paddles fixedly installed on the outer surface of the second main shaft from top to bottom and extending into the fermentation tank.

[0010] Preferably, the third stirring mechanism comprises a third motor fixedly installed on the top of the ripening tank, a third main shaft fixedly installed at the output end of the third motor, a fixed disc fixedly installed at the bottom of the third main shaft extending into the ripening tank, three L-shaped plates fixedly installed on the outer surface of the fixed disc, a scraper fixedly installed on the side wall of each L-shaped plate and scraping on the side wall of the ripening tank, and a spiral plate fixedly installed on the inner wall of each L-shaped plate.

[0011] Preferably, the filter assembly comprises a driving assembly, a reciprocating lifting assembly and an annular bailer, the reciprocating lifting assembly is provided with two, which are installed on the left and right sides of the top wall of the fermentation tank, and the bottoms of the two reciprocating lifting assemblies are fixedly connected with the annular bailer, the driving assembly drives the two reciprocating lifting assemblies to work synchronously, the reciprocating lifting assembly comprises a boom and a connecting plate, the boom is fixedly installed on one side of the top wall of the fermentation tank, the bottom of the boom is fixedly installed with a support plate, the inner side of the boom is fixedly installed with a fixed plate in the middle, the driving assembly comprises a first sprocket and two second sprockets, the first sprocket is fixedly installed on the outer surface of the second main shaft, the two second sprockets are rotatably installed on the fixed plates on the two sides through the rotating shafts, the second sprockets and the first sprocket are jointly wound with a chain outside, the rotating shafts of the second sprockets are rotatably penetrated through the fixed plates and fixedly installed with first bevel gears at the bottoms, the support plate is rotatably installed with a rotating rod in the middle, one end of the rotating rod is fixedly installed with a second bevel gear, the first bevel gear is engaged with the second bevel gear, the other end of the rotating rod is fixedly installed with a driving gear, the support plate is rotatably installed with a first shaft and a second shaft on the two sides of the end close to the driving gear, the first shaft is fixedly installed with a first driven gear and a first cam, the second shaft is fixedly installed with a second driven gear and a second cam, the driving gear is engaged with the second driven gear and the first driven gear, the connecting plate is located between the second cam and the first cam, the connecting plate is provided with a sliding groove in the middle, the sliding groove is fixedly installed with a sliding rod inside, the sliding rod is slidably installed with a limiting plate on the outer surface, the limiting plate is tightly attached to the inner wall of the sliding groove, one end of the limiting plate away from the connecting plate is fixedly connected with the inner wall of the fermentation tank, the two ends of the connecting plate are fixedly installed with a first rack and a second rack, respectively, a plurality of teeth are fixedly installed on the outer surfaces of the second cam and the first cam, the first rack is engaged with the teeth of the second cam, and the second rack is engaged with the teeth of the first cam, the outer surfaces of the two sides of the annular bailer are fixedly connected with the bottoms of the two connecting plates, respectively, a filter screen is fixedly installed on the upper end of the annular bailer, the upper end of the filter screen is inclined downward towards the center, the inner bottom wall of the annular bailer is communicated with the conveying pipe, and the annular bailer is sleeved outside the axial flow paddle.

[0012] Preferably, the scraping assembly comprises a first baffle and a second baffle, the first baffle and the second baffle are fixedly installed on the upper part of the outer surface of the second main shaft, the outer surface of the second main shaft is slidably installed with an annular block, the outer surface of the second main shaft is fixedly installed with a limiting block between the first baffle and the second baffle, the inner wall of the annular block is provided with a limiting groove, the limiting block slides in the limiting groove, the outer surface of the second main shaft is sleeved with a first spring located between the first baffle and the annular block, the outer surfaces of the two sides of the annular block are fixedly installed with connecting rods, respectively, and the connecting rods are fixedly installed with scrapers on the bottoms away from the annular block.

[0013] Preferably, the ultrasonic treatment assembly comprises a second cylinder, a spiral guide plate is fixedly installed on the inner wall of the second cylinder, a first connecting pipe and a second connecting pipe are fixedly installed at the two ends of the second cylinder respectively, a plurality of ultrasonic generators are uniformly fixedly installed on the outer surface of the second cylinder, a spiral heat exchange flow channel is formed in the inner wall of the second cylinder, the first connecting pipe is communicated with the pump body, and the second connecting pipe is communicated with the membrane filtration assembly.

[0014] Preferably, the membrane filtration assembly comprises a third cylinder, a drainage pipe is fixedly installed at the bottom of the side wall of the third cylinder, a distribution cylinder and a collection cylinder are fixedly installed at the two sides of the inner wall of the third cylinder respectively, a plurality of evenly arranged porous ceramic tubes are fixedly connected between the distribution cylinder and the collection cylinder, a first connecting port is fixedly installed on the side of the distribution cylinder close to the third cylinder, the first connecting port is connected with the second connecting pipe, a second connecting port is fixedly installed on the side of the collection cylinder close to the third cylinder, and the second connecting port is fixedly connected with a connecting pipe.

[0015] Compared with the prior art, the application has the following beneficial effects: 1. The continuous fermentation equipment for composite fermented sauce is disclosed, three core processes of hydrolysis, main fermentation and post-ripening are separated in space, and a continuous automatic production line is constructed by adopting a ladder type layout and a spiral pump in series, so that materials flow uninterruptedly from feeding to finished product output, waiting time such as cleaning, sterilization and feeding between batch operations is eliminated, production efficiency is greatly improved, product quality is highly uniform and stable, and a foundation is laid for realizing industrialized large-scale production. 2. The continuous fermentation equipment for composite fermented sauce is disclosed, a dynamic extraction circulating device is arranged, a dynamic extraction circulating device of "fishing-filtering-scraping-material-ultrasound-membrane filtration" is integrated in the fermentation tank, active intervention and precise control of the fermentation process are realized, the dynamic extraction circulating device can actively extract, break the wall (ultrasound) and concentrate (membrane filtration) flavor precursor substances from the main fermentation mash, and then directly deliver them to the post-ripening tank, which is equivalent to providing high-concentration flavor essence for the post-ripening stage, greatly promoting esterification and other post-ripening reactions, making the flavor level of the final product more rich, and significantly improving the richness and coordination, small molecule byproducts (such as excess organic acids) are actively removed, the inhibition on the main fermentation is reduced, the flavor precursors are forcibly delivered to the post-ripening environment, the flavor maturation process is accelerated, the entire fermentation cycle is shortened, the scraping assembly scrapes the intercepted mycelium and other solid materials back to the fermentation tank, realizes continuous recovery and re-inoculation of active bacteria, and maintains high activity and stability of the microbial community in the fermentation tank. 3. The application discloses a kind of continuous fermentation equipment of compound fermented sauce, hydrolysis tank adopts high shear dispersion disc, realizes the quick, complete breakage and homogenization of raw material, prepares uniform, activated substrate for subsequent fermentation, fermentation tank adopts low shear axial flow paddle, while providing efficient mixing and dissolved oxygen, sensitive microbial mycelium is protected, creates the best environment for microbial metabolism, post-ripening tank: anchor type stirring with wall scraping function is used, low-speed operation can prevent material deposition, ensure heat exchange efficiency, and can also be gently mixed, avoid the destruction and volatilization of flavor substances, promote the perfect association of flavor. 4. The application discloses a kind of continuous fermentation equipment of compound fermented sauce, fishing filter and scraping material action are linked with main stirring shaft through precise sprocket-cam-rack and other pure mechanical mechanisms, without additional power source, realize the full-automatic operation of on-line filtration, slagging, action is accurate and reliable, with low failure rate, each tank body is equipped with independent temperature control system, through the cooperation of sensor, heat preservation jacket, external cold and hot source and PLC controller, can accurately stabilize the temperature of each tank in the narrow range required by process, ensure the efficiency and consistency of each stage biochemical reaction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the application; Figure 2 It is the cutaway schematic diagram of the application; Figure 3 It is the connection schematic diagram of the second stirring mechanism and partial structure of dynamic extraction circulating device of the application; Figure 4 It is the structure schematic diagram of fishing filter assembly of the application; Figure 5 It is the structure schematic diagram of scraping material assembly of the application; Figure 6 It is the structure schematic diagram of third stirring mechanism of the application; Figure 7 It is the structure schematic diagram of exhaust assembly of the application; Figure 8 It is the partial structure schematic diagram of dynamic extraction circulating device of the application; Figure 9 It is the structure schematic diagram of ultrasonic treatment assembly of the application.

[0017] Figure 10 It is the structure schematic diagram of membrane filtration assembly of the application.

[0018] In the figure: 1, support; 2, hydrolysis tank; 3, fermentation tank; 4, ripening tank; 5, first stirring mechanism; 6, second stirring mechanism; 7, third stirring mechanism; 8, dynamic extraction circulating device; 9, exhaust assembly; 10, feeding port; 11, heat preservation jacket; 12, first screw pump; 13, second screw pump; 14, third screw pump; 81, filter assembly; 82, scraping assembly; 83, box body; 84, pump body; 85, ultrasonic treatment assembly; 86, membrane filtration assembly; 87, connecting pipe; 88, conveying pipe; 811, driving assembly; 812, reciprocating lifting assembly; 813, annular bucket; 8111, first sprocket; 8112, second sprocket; 8113, chain; 8121, boom; 8122, support plate; 8123, first bevel gear; 8124, second bevel gear; 8125, rotating rod; 8126, driving gear; 8127, first shaft; 8128, first driven gear; 8129, first cam; 81210, second shaft; 81211, second driven gear; 81212, second cam; 81213, connecting plate; 81214, sliding rod; 81217, limiting plate; 81215, first rack; 81216, second rack; 81218, fixed plate; 8131, filter screen; 51, first motor; 52, first main shaft; 53, high shear dispersion disc; 61, second motor; 62, second main shaft; 63, axial flow paddle; 71, third motor; 72, third main shaft; 73, fixed disc; 74, L-shaped plate; 75, scraper; 76, spiral plate; 821, first baffle; 822, first spring; 823, limiting block; 824, annular block; 8241, limiting groove; 825, connecting rod; 826, scraper; 827, second baffle; 91, first cylinder body; 92, telescopic rod; 93, second spring; 94, extrusion ball; 911, air inlet; 912, tapered channel; 913, air outlet; 851, second cylinder body; 852, spiral guide plate; 853, ultrasonic generator; 854, spiral heat exchange flow channel; 855, first connecting pipe; 856, second connecting pipe; 861, third cylinder body; 863, distribution cylinder; 862, collection cylinder; 864, porous ceramic tube; 8631, first connecting port; 8621, second connecting port; 865, liquid discharge pipe. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0020] As Figures 1-10As shown, a kind of continuous fermentation equipment of compound fermented sauce, including support 1, the hydrolysis tank 2, fermentation tank 3 and post-ripening tank 4 are installed in order from top to bottom using stepped three-dimensional layout on the support 1, and the three are connected in series by screw pump in turn;Specifically, the hydrolysis tank 2 and fermentation tank 3 are communicated by first screw pump 12, the fermentation tank 3 and post-ripening tank 4 are communicated by second screw pump 13, the third screw pump 14 for finished product output is equipped at the bottom of post-ripening tank 4, the hydrolysis tank 2 top is equipped with feed inlet 10, for putting into sauce body raw material;Special stirring mechanism is configured in each functional tank body, first stirring mechanism 5 is equipped in hydrolysis tank 2, second stirring mechanism 6 is equipped in fermentation tank 3, third stirring mechanism 7 is equipped in post-ripening tank 4, and they are respectively adapted to the material mixing and reaction requirement of each stage, and dynamic extraction circulating device 8 is connected outside fermentation tank 3, and the device is composed of in-tank functional components and out-of-tank processing unit: the in-tank part includes fishing filter component 81 and scraping component 82, and the out-of-tank part is box 83, and pump body 84, ultrasonic treatment component 85 and membrane filtration component 86 are arranged in it from top to bottom according to process flow;The bottom of membrane filtration component 86 is communicated with the inside of post-ripening tank 4 by connecting pipe 87, and the pump body 84 is connected with fishing filter component 81 by conveying pipe 88, to build closed loop circulation system from extracting fermentation liquid from fermentation tank 3 to external processing, and returning to post-ripening tank 4.

[0021] The hydrolysis tank 2, fermentation tank 3 and ripening tank 4 are each provided with a temperature control unit independent of each other, each temperature control unit comprising a temperature sensor installed on the tank body, a heat preservation jacket 11 wrapped on the outer wall of the tank body, a heater providing heat source for the system, a cooler providing cold source for the system, a circulating pump, a control valve and a system controller such as PLC. The heater is specifically an electric heating boiler or a steam boiler, and the cooler is specifically a circulating water cooling unit or a glycol cooling water unit. The heater and the cooler are connected with the heat preservation jacket 11 through pipelines, control valves and constitute a closed heat exchange medium circulation loop. The circulating pump drives the heat exchange medium such as water, heat conducting oil or glycol solution to flow in the system. The control valve is usually a three-way regulating valve or a multi-way electromagnetic valve for accurately adjusting the temperature and flow of the medium entering the heat preservation jacket 11. The system controller receives the signal of the temperature sensor and automatically controls the cooperative work of the heater, cooler, circulating pump and control valve according to the preset process curve through PID control algorithm. The heat preservation jacket 11 is internally provided with a spiral channel, the heat exchange medium can flow in the channel to increase the heat exchange area and improve the heat exchange efficiency. The temperature of the medium is adjusted by the external temperature control system to realize independent and accurate control of the process temperature in different fermentation stages. When heating is needed, the controller starts the heater and adjusts the control valve. The heat exchange medium is heated by flowing through the heater and then enters the spiral channel of the heat preservation jacket 11 to exchange heat with the tank wall to heat the material in the tank. Then the medium returns to the inlet of the circulating pump to form a closed loop. When cooling is needed, the controller starts the cooler and switches the control valve. The medium is cooled by flowing through the cooler and then enters the heat preservation jacket 11 to absorb the heat of the material in the tank to realize cooling. In specific work: the temperature sensor continuously transmits the temperature signal of the material in the tank to the controller, and the controller compares the detected value with the set value. If the temperature is too low, the heating circuit is started; if the temperature is too high, the cooling circuit is started. By adjusting the opening degree of the control valve, the medium from the heater / cooler and the return medium can be mixed to realize stepless and accurate adjustment of the temperature of the medium entering the jacket, so that the temperature of the material in the tank is stabilized in a narrow range required by the process. The temperature control systems of the three tank bodies are completely independent and can be set according to the specific temperature requirements of different stages such as hydrolysis stage 50-60°C, fermentation stage 30-40°C and ripening stage 0-10°C, without interference, ensuring that each stage is at the optimal reaction temperature.

[0022] Referring to Figure 7As shown, the hydrolysis tank 2, fermentation tank 3 and ripening tank 4 are each provided with an exhaust assembly 9 at the top for automatically exhausting the gas generated in the tank during fermentation, preventing the backflow of external air, maintaining a suitable micro-positive pressure or sterile environment in the tank, and the core structure of the exhaust assembly 9 includes a first cylinder 91 having a gas inlet 911 in the bottom center communicating with the inside of the tank, and a tapered channel 912 extending above the gas inlet 911, a plurality of exhaust ports 913 being uniformly provided on the top wall of the first cylinder 91 for exhausting the gas to the outside, and a vertically installed telescopic rod 92 having an extrusion ball 94 fixedly installed at the lower end and fixedly installed at the top wall of the first cylinder 91 at the upper end, the extrusion ball 94 being tightly fitted with the tapered sealing surface of the tapered channel 912 to form a sealing pair under the pre-tightening force of the second spring 93 in the natural state. The second spring 93 is sleeved outside the telescopic rod 92 and acts on the top wall of the first cylinder 91 and the extrusion ball 94 at both ends to provide a continuous sealing pressure. The assembly is automatically opened and closed by balancing the gas pressure and the mechanical spring force, and the working process is as follows: when the gas pressure in the tank is normal or slightly lower than the outside, the extrusion ball 94 is tightly pressed on the tapered channel 912 under the pre-tightening force of the second spring 93 to seal the gas inlet 911. At this time, the tank is isolated from the outside, effectively preventing the entry of external bacteria and air, when the gas produced by the fermentation of microorganisms in the tank causes the gas pressure to rise to a sufficient pre-tightening force of the second spring 93, the gas pressure lifts the extrusion ball 94 from bottom to top, the extrusion ball 94 drives the telescopic rod 92 to move upward against the spring force, and the extrusion ball 94 is separated from the tapered channel 912 to form an exhaust gap, and the gas in the tank is sequentially exhausted to the outside of the equipment through the gas inlet 911, the tapered channel 912, the exhaust gap, the internal cavity of the first cylinder 91 and the exhaust port 913. When the gas in the tank is exhausted and the gas pressure drops below the spring pre-tightening force, the second spring 93 pushes the extrusion ball 94 to move downward along the telescopic rod 92 guide to re-press tightly on the tapered channel 912 to restore the sealing state and complete a gas exhaust cycle. The exhaust assembly 9 is essentially a self-acting one-way valve based on mechanical pressure balance, which automatically controls the opening and closing of the valve port by utilizing the dynamic balance between the pre-set sealing force provided by the second spring 93 and the fermentation gas pressure in the tank. The telescopic rod 92 ensures the linearity and stability of the movement of the extrusion ball 94, avoiding the sealing failure caused by eccentric wear. The design is simple, does not require external power, and is sensitive and reliable in action. It can timely release the excess carbon dioxide and other gases generated during fermentation, effectively prevent the tank from overpressure, and its one-way sealing property avoids the entry of external air during fermentation, reduces the risk of bacterial contamination, and provides an important guarantee for the continuous and safe production of high-quality composite fermented sauce See Figure 2As shown, the first stirring mechanism 5 includes a first motor 51 and a first main shaft 52, the first motor 51 is fixedly installed on the top cover of the hydrolysis tank 2 through the base, and the motor is preferably a variable frequency motor that can be adjusted in speed to adapt to the needs of different raw material formulations for stirring speed, and the first main shaft 52, the upper end of which is rigidly connected with the output end of the first motor 51 through a shaft coupling, and the lower end extends to the internal working area of the hydrolysis tank 2 through a mechanical seal. At the end of the first main shaft 52, a high shear dispersion disc 53 is fixedly installed. The dispersion disc is usually a concentric disc structure with radial slits, i.e. a stator-rotor structure, when it rotates at high speed, the slits at the edge of the disc can generate extremely strong mechanical shear force and high-frequency hydraulic shear force. After the first motor 51 is started, the rotating power output by the first motor 51 is transmitted to the first main shaft 52 through the shaft coupling, and the first main shaft 52 transmits the power vertically downward to the high shear dispersion disc 53 in the deep part of the tank, and the high shear dispersion disc 53 rotates at high speed and works on the surrounding materials. When the high shear dispersion disc 53 rotates at a high speed under the drive of the first motor 51, the rotating speed is usually 1000-3000 rpm, the strong centrifugal force of the high shear dispersion disc 53 will throw the materials from the center of the disc to the edge, and when the materials pass through the precise slits at the edge of the disc at a high speed, they will be subjected to extremely strong mechanical shear, impact and tearing, thereby instantaneously crushing solid particles and micronizing liquid droplets. At the same time, a large number of cavitation bubbles are generated in the slits when the materials flow at a high speed, and the local high pressure and high temperature generated when these bubbles instantaneously collapse can further damage plant cell walls and animal tissues, promote the rapid release and dissolution of effective ingredients in cells, and the whole process forms a strong turbulent circulation in the tank, ensuring that all materials can be repeatedly sucked into the working area of the dispersion disc, realizing rapid, uniform mixing and fine processing, and preparing uniform and activated substrate for the subsequent fermentation stage. Through the high shear dispersion disc 53 as the core stirring component of the hydrolysis tank 2, compared with the traditional anchor or paddle stirring, the crushing efficiency and homogenization effect of the raw materials are greatly improved, the raw material pretreatment time is significantly shortened, an efficient initial link is provided for the continuous production process of the whole compound fermented sauce, and plays a key role in the fineness of the taste and the enrichment of flavor substances of the final product.

[0023] Referring to Figures 2-3As shown, the second stirring mechanism 6 comprises a second motor 61, a second main shaft 62 and axial flow paddles 63, the second motor 61 is fixedly installed on the top cover of the fermentation tank 3 through a base, the upper end of the second main shaft 62 is rigidly connected with the output end of the second motor 61 through a shaft coupling, and the lower end thereof is rotatably penetrated through the top cover of the fermentation tank 3 and extends into the working area in the tank through a mechanical seal assembly, which ensures the dynamic sealing of the main shaft during rotation, prevents the leakage of materials in the tank and the entry of external pollutants, and a plurality of axial flow paddles 63 are uniformly fixedly installed on the portion of the second main shaft 62 extending into the tank along the axial direction thereof from top to bottom, the paddles are preferably inclined paddle or high-efficiency axial flow paddles with a wing-shaped section, and the installation angle, i.e. the included angle between the paddle plane and the rotation plane, is optimized and is usually between 45° and 60°, so that a strong, top-to-bottom axial main flow field can be generated during operation. During specific operation, when the second motor 61 drives the rotation of the second main shaft 62 and the axial flow paddles 63, the paddles continuously push the fermentation liquid to the bottom of the tank, and the blocked fluid is turned back along the tank wall and upward, so that a stable and continuous overall circulation flow is formed in the tank. The temperature, pH, nutrient and microbial concentration in each area of the tank are kept highly uniform, a stable environment is provided for the fermentation reaction, the air or oxygen introduced can be rapidly dispersed into fine bubbles and uniformly dispersed throughout the tank, the gas-liquid contact area is greatly increased, the oxygen dissolution rate and efficiency are improved, and the metabolic needs of aerobic and facultative anaerobic microorganisms are fully met. Compared with high-shear paddles, the axial flow paddles 63 can provide sufficient mixing intensity while producing lower local shear force, effectively protect the mycelium and cell structure of shear-sensitive microorganisms, and maintain their high activity, which is crucial for the generation of high-quality flavor substances. The rotation speed of the stirring structure can be adjusted by a frequency converter for the second motor 61 to adapt to the differentiated needs for mixing and oxygen dissolution intensity at different stages of the fermentation process, such as the early growth stage and the vigorous metabolism stage of the bacteria.

[0024] Referring to Figure 2 and Figure 6As shown, the third stirring mechanism 7 comprises a third motor 71, a third main shaft 72, a fixed disc 73, L-shaped plates 74, a scraper 75 and a spiral plate 76, the third motor 71 is fixedly installed on the top of the ripening tank 4 through a base, the upper end of the third main shaft 72 is connected with the output end of the third motor 71 through a shaft coupling, the lower end thereof is rotatably penetrated through the top cover of the ripening tank 4 and extends to the bottom area in the tank through a mechanical seal assembly, the third motor 71 is preferably a low-speed reduction motor or is equipped with a frequency converter, and the output rotating speed thereof is set in a lower range, for example, 5-30 rpm, so as to adapt to the process requirement of mild stirring in the ripening stage, at the bottom of the third main shaft 72, a fixed disc 73 is fixedly installed, at the outer edge of the fixed disc 73, at least three L-shaped plates 74 are uniformly distributed and fixedly installed in the circumferential direction, the bottom wall of the horizontal section of the L-shaped plate 74 is in sliding contact or small gap fit with the inner bottom wall of the ripening tank 4, so as to realize bottom scraping, and the side wall of the vertical section of the L-shaped plate 74 is fixedly installed with a scraper 75, the scraper 75 is usually made of flexible wear-resistant materials such as food-grade polytetrafluoroethylene or polyurethane, the side edge thereof is in close contact with the inner side wall of the ripening tank 4, so as to realize side wall scraping, and the spiral plate 76 is fixedly connected between the inner side walls of the plurality of L-shaped plates 74, the spiral plate 76 spirally rises around the third main shaft 72, forming an intermittent spiral conveying surface, when the third motor 71 drives the whole stirring assembly to rotate at a low speed, the rotating scraper 75 continuously scrapes the inner side wall of the ripening tank 4, and the bottom of the L-shaped plate 74 scrapes the tank bottom, which can effectively prevent the high-viscosity sauce from scaling and depositing on the heat exchange wall, ensure the stable heat exchange efficiency, and avoid the deterioration or carbonization of the material caused by long-term stagnation of the local material, the combination of the L-shaped plate 74 and the spiral plate 76 can realize low shear and overall turning of the material in the tank at a low rotating speed, the mild mixing effect is sufficient to maintain the uniformity of the material, promote the diffusion and association of flavor substances, and avoid the damage to the formed flavor substances and the loss of volatile aroma caused by violent stirring, meanwhile, the spiral plate 76 produces a slow upward lifting effect on the material in the center during the rotating process, the lifted material flows downward along the tank wall area under the action of gravity, so as to form a gentle internal circulation flow field in the tank, which further strengthens the mixing effect, ensures the uniformity of temperature and concentration, and promotes the thorough ripening reaction.

[0025] Referring to Figures 2-3 and Figure 6As shown, the filter assembly 81 includes a drive group, reciprocating lifting assembly 812 and annular bucket 813, the reciprocating lifting assembly 812 is provided with two, respectively installed on the left and right sides of the top wall of the fermentation tank 3, the bottom of the two reciprocating lifting assemblies 812 is fixedly installed with the annular bucket 813, the drive assembly 811 drives the two reciprocating lifting assemblies 812 to work synchronously, the reciprocating lifting assembly 812 includes a boom 8121 and a connecting plate 81213, the boom 8121 is fixedly installed on one side of the top wall of the fermentation tank 3, the bottom of the boom 8121 is fixedly installed with a support plate 8122, the inner side of the middle of the boom 8121 is fixedly installed with a fixed plate 81218, the drive assembly 811 includes a first sprocket 8111 and two second sprockets 8112, the first sprocket 8111 is fixedly installed on the outer surface of the second main shaft 62, the two second sprockets 8112 are rotatably installed on the two fixed plates 81218 through the shaft, the second sprocket 8112 and the first sprocket 8111 are externally wound with a chain 8113, the shaft of the second sprocket 8112 at the bottom rotates through the fixed plate 81218 and is fixedly installed with a first bevel gear 8123, the middle of the support plate 8122 is rotatably installed with a rotating rod 8125, one end of the rotating rod 8125 is fixedly installed with a second bevel gear 8124, the first bevel gear 8123 and the second bevel gear 8124 are engaged, the other end of the rotating rod 8125 is fixedly installed with a driving gear 8126, the two sides of one end of the support plate 8122 close to the driving gear 8126 are rotatably installed with a first shaft 8127 and a second shaft 81210 respectively, the first shaft 8127 is fixedly installed with a first driven gear 8128 and a first cam 8129, the second shaft 81210 is fixedly installed with a second driven gear 81211 and a second cam 81212, the driving gear 8126 is engaged with the second driven gear 81211 and the first driven gear 8128, the connecting plate 81213 is located between the second cam 81212 and the first cam 8129, a sliding groove is formed in the middle of the connecting plate 81213, a sliding rod 81214 is fixedly installed in the sliding groove, a limiting plate 81217 is slidably installed on the outer surface of the sliding rod 81214, the limiting plate 81217 is tightly attached to the inner wall of the sliding groove, one end of the limiting plate 81217 away from the connecting plate 81213 is fixedly connected with the inner wall of the fermentation tank 3, the two ends of the connecting plate 81213 are fixedly installed with a first rack 81215 and a second rack 81216 respectively, a plurality of teeth are fixedly installed on the outer surfaces of the second cam 81212 and the first cam 8129, the first rack 81215 is engaged with the teeth of the second cam 81212, the second rack 81216 is engaged with the teeth of the first cam 8129, the outer surfaces of the two sides of the annular bucket 813 are fixedly connected with the bottoms of the two connecting plates 81213 respectively, a filter screen 8131 is fixedly installed on the upper end of the annular bucket 813,The upper end of the filter screen 8131 is inclined downwardly close to the center, the inner bottom wall of the annular bucket 813 is communicated with the conveying pipe 88, the annular bucket 813 is sleeved outside the axial flow paddle 63, the first cam 8129 rotates to drive the second rack 81216 to move downwardly, when the first cam 8129 is away from the second rack 81216, the second cam 81212 is close to the first rack 81215 and drives the first rack 81215 to move upwardly, so that in the rotating process of the driving gear 8126, the first cam 8129 and the second cam 81212 are matched with each other to drive the connecting plate 81213 to move upwardly and downwardly, thereby driving the sliding plate annular bucket 813 to move upwardly and downwardly.

[0026] The initial power of the bucket filter assembly 81 is derived from the second main shaft 62 of the fermentation tank 3, the rotating power of the second main shaft 62 is synchronously transmitted to the first bevel gears 8123 on both sides of the assembly through the first sprocket 8111, the chain 8113 and the second sprockets 8112 on both sides fixed on the second main shaft 62, the first bevel gears 8123 and the second bevel gears 8124 convert the rotation around the vertical shaft into the rotation of the rotating rod 8125, and then the driving gear 8126 rotates to drive the first driven gear 8128 and the second driven gear 81211 and the first cam 8129 and the second cam 81212 coaxial with them to rotate synchronously, the tooth parts on the outer edges of the first cam 8129 and the second cam 81212 are engaged with the first rack 81215 and the second rack 81216 fixed on the connecting plate 81213, the rotating movement of the cam is converted into the linear movement of the connecting plate 81213, and the phases of the first cam 8129 and the second cam 81212 are designed to be 180 degrees apart. When the tooth part of the first cam 8129 pushes the second rack 81216, the connecting plate 81213 moves downwardly, and the second cam 81212 is in the return stroke, and the tooth part thereof is disengaged from the first rack 81215. When the first cam 8129 ends the pushing stroke, the second cam 81212 just enters the pushing stroke to push the connecting plate 81213 to move upwardly, so as to realize the continuous and stable vertical reciprocating movement of the connecting plate 81213, and the sliding pair composed of the limiting plate 81217 and the sliding rod 81214 ensures that the annular bucket 813 fixedly connected to the bottom of the connecting plate 81213 can only move in the strict vertical direction and cannot be deflected or shaken.

[0027] In actual operation, driven by the drive component 811, the annular scoop 813 descends and is submerged in the fermentation broth. The fermentation broth flows into the scoop from its top opening. After the annular scoop 813 is full of fermentation broth, it begins to rise. When the scoop detaches from the liquid surface and continues to rise to a higher position, the fermentation broth passes through the inclined filter screen 8131 installed at its top under the action of gravity. The clear liquid passes through the filter screen 8131 and enters the collection chamber inside the scoop, while solid mycelia and particulate matter are trapped on the surface of the filter screen. The clear liquid collected at the bottom of the annular scoop 813 is transported out by the external pump body 84 through the delivery pipe 88 connected to its bottom and enters the subsequent ultrasonic treatment component 85. After unloading, the annular scoop 813 descends again to prepare for the next scooping cycle. The whole process repeats in this way, realizing intermittent continuous sampling and filtration of the fermentation broth.

[0028] See Figure 3 and Figure 5 As shown, the scraping assembly 82 includes a first baffle 821 and a second baffle 827. Both the first baffle 821 and the second baffle 827 are fixedly installed on the upper part of the outer surface of the second main shaft 62. An annular block 824 is slidably installed on the outer surface of the second main shaft 62. A limiting block 823 is fixedly installed on the outer surface of the second main shaft 62 between the first baffle 821 and the second baffle 827. A limiting groove 8241 is opened on the inner wall of the annular block 824. The limiting block 823 slides in the limiting groove 8241. A first spring 822 is sleeved on the outer surface of the second main shaft 62 between the first baffle 821 and the annular block 824. Connecting rods 825 are fixedly installed on both sides of the outer surface of the annular block 824. A scraper 826 is fixedly installed on the bottom side of the connecting rod 825 away from the annular block 824.

[0029] When the ring-shaped bucket 813 is in the lowered or low position, the scraper 826 is separated or has a gap from the surface of the filter screen 8131, at this time, the centrifugal force generated by the rotation of the second main shaft 62 drives the ring-shaped block 824 to move radially outward with the scraper 826, but since the bucket has not been raised to the working position, the scraper 826 does not contact the filter screen. When the ring-shaped bucket 813 is driven by the reciprocating lifting assembly 812 to move upward and the filter screen 8131 thereof reaches the scraping height corresponding to the scraper 826, the inclined surface of the filter screen 8131 begins to contact the scraper 826 in the radially extended state, and as the bucket continues to rise, the filter screen 8131 generates a continuous upward force on the scraper 826. This force is transmitted to the ring-shaped block 824 through the connecting rod 825, overcoming the pre-tightening force of the first spring 822, and pushing the ring-shaped block 824 to slide upward along the second main shaft 62. In this process, the first spring 822 is compressed and accumulates restoring energy. Under the continuous rotation of the second main shaft 62, the scraper 826 which slides upward and extends radially generates a continuous scraping action relative to the surface of the rising filter screen 8131, and the filter residues attached to the surface of the filter screen are completely scraped off. When the ring-shaped bucket 813 completes the filtering and begins to descend, the pressure of the filter screen 8131 on the scraper 826 disappears, and at this time, the first spring 822 which is compressed releases energy and pushes the ring-shaped block 824 to slide downward to reset, thereby bringing the scraper 826 away from the surface of the filter screen 8131 or restoring to the initial gap, waiting for the next working cycle.

[0030] The scraper assembly 82 realizes the automatic online cleaning of the filter screen 8131 in each working cycle, ensures the stability of the filtering efficiency and the continuity of the dynamic extraction process, fundamentally avoids the production interruption caused by the blockage of the filter screen, and returns the filter residues rich in active mycelium to the fermentation main body, which is equivalent to continuous strain feed enrichment, helps to maintain and improve the microbial concentration and fermentation activity of the main fermentation tank 3, and the scraping power is completely derived from the rotation of the main stirring shaft, without the need for additional independent driving devices, with ingenious structure, energy saving and simple control; the spring and the sliding mechanism constitute a self-adaptive buffer system which can effectively absorb the impact that may occur between the scraper 826 and the filter screen and provide stable contact pressure, ensuring the scraping effect and preventing damage to the scraper 826 or the filter screen 8131 caused by rigid impact, prolonging the service life of the equipment. The lifting movement of the scraper assembly and the bucket-filter assembly 81 realizes perfect timing cooperation, and the whole process of bucketing, filtering, scraping and returning residues is completed automatically, which is a key embodiment of the high automation and intelligence of the whole equipment.

[0031] Referring to Figure 2 , Figures 8-9As shown, the ultrasonic treatment assembly 85 includes a second cylinder 851, and a first connecting pipe 855 and a second connecting pipe 856 are fixedly installed at two ends of the second cylinder 851 respectively. A plurality of high-power ultrasonic generators 853 such as piezoelectric ceramic transducers are uniformly fixedly installed on the outer wall of the second cylinder 851 in the axial and circumferential directions. These generators work together to form a high-strength and uniformly distributed ultrasonic energy field inside the cylinder. The ultrasonic generators 853 are driven by an independent power supply and a control unit outside, and can adopt a pulse working mode such as intermittent start-stop to optimize the treatment effect and prevent the equipment from overheating. A spiral heat exchange flow channel 854 is opened in the inner wall of the second cylinder 851. The first connecting pipe 855 is in communication with the pump body 84, and the second connecting pipe 856 is in communication with the membrane filtration assembly 86 to form a continuous treatment flow. A continuous spiral flow guide plate 852 is fixedly installed on the inner wall of the second cylinder 851. The spiral flow guide plate is equal in width to the inner wall of the cylinder, and the pitch thereof is carefully designed to guide the fluid to change from linear flow to spiral forward motion along the pipe wall. The combination of the spiral flow guide plate 852 and the multiple generator array solves the problems of "treatment dead zone" and short residence time existing in traditional ultrasonic reactors, realizes full-range, uniform and efficient treatment of the fermentation broth, and greatly improves the wall breaking rate and material release rate. A spiral heat exchange flow channel 854 is opened in the cylinder wall of the second cylinder 851. The flow channel can pass in circulating heat exchange medium such as cooling water or warm water, and is connected with an external temperature control device to constitute a closed-loop temperature control system for accurately absorbing or supplementing the heat generated in the ultrasonic treatment process.

[0032] In specific work, the fermentation broth to be treated delivered by the pump body 84 enters the second cylinder 851 from the first connecting pipe 855, and under the forced guidance of the spiral flow guide plate 852, the fermentation broth changes from linear flow to spiral motion, significantly prolonging the effective flow path and residence time of the fermentation broth in the ultrasonic field, ensuring that all fluid particles can be subjected to sufficient and uniform ultrasonic action. When the fermentation broth spirally flows through the entire cylinder, the multiple ultrasonic generators 853 work simultaneously to transmit high-frequency mechanical vibrations into the liquid medium. The ultrasonic waves generate and instantaneously annihilate numerous microbubbles in the liquid, and the local extremely high temperature, high pressure, and strong shock waves and microjets generated when the microbubbles collapse can effectively break the cell walls of microorganisms such as yeast and mold, so that the flavor precursor substances such as enzymes, proteins and nucleic acids in the cells are released into the fermentation broth. The strong ultrasonic vibration forms intense disturbance in the liquid, greatly enhancing material transfer and mixing, promoting the uniform mixing of the released intracellular substances with the fermentation broth, and improving the rate of subsequent reactions. During the entire ultrasonic treatment process, the circulating medium in the spiral heat exchange flow channel 854 continuously works to accurately remove the heat generated by cavitation effect, ensuring that the fermentation broth temperature is stably maintained within the preset process range, for example, preventing the destruction of flavor substances or enzyme deactivation caused by excessively high temperature.

[0033] Referring to Figure 2、 Figure 8 and Figure 10 As shown in the figure, the membrane filtration assembly 86 comprises a third cylinder 861, two sides of the inner wall of the third cylinder 861 are fixedly installed with a distribution cylinder 863 and a collection cylinder 862 respectively, a plurality of uniformly arranged porous ceramic tubes 864 are fixedly connected between the distribution cylinder 863 and the collection cylinder 862, both ends of the ceramic tubes are fixedly connected with the distribution cylinder 863 and the collection cylinder 862 through sealing structures respectively, a drain pipe is fixedly installed on the side wall of the third cylinder 861, the pipe wall of the porous ceramic tube 864 is a separation membrane, the active separation layer thereof faces the inner passage of the tube, the molecular weight cutoff is usually in the range of -kDa, which is sufficient to retain macromolecular flavor precursor substances such as proteins, polysaccharides, etc., while allowing water, small molecular organic acids, ethanol, etc. to pass through, the distribution cylinder 863 is fixedly installed with a first connecting port 8631 on the side close to the third cylinder 861, the first connecting port 8631 is connected with the second connecting pipe 856, the collection cylinder 862 is fixedly installed with a second connecting port 8621 on the side close to the third cylinder 861, and the second connecting port 8621 is fixedly connected with a connecting pipe 87.

[0034] Specifically, the fermentation broth activated by the ultrasonic treatment assembly 85 is driven by the pressure provided by the pump body 84, enters the distribution cylinder 863 from the first connecting port 8631, and is uniformly distributed to the inlet of each porous ceramic tube 864, the fermentation broth flows at high speed in the inner passage of the tube under the action of pressure, under the action of the transmembrane pressure difference, i.e. the pressure in the tube is higher than the pressure in the cylinder, the following separation occurs: macromolecular flavor precursor substances such as proteins, polypeptides, polysaccharides, etc. in the fermentation broth and bacterial cells are effectively retained by the ceramic membrane wall, they continue to flow forward in the tube, the concentration continuously increases, and finally enters the collection cylinder 862 from the other end to become a concentrated solution; water, small molecular organic acids, ethanol, inorganic salts, etc. pass through the micropores on the ceramic tube wall and enter the third cylinder 861. The concentrated solution collected in the collection cylinder 862 is transported to the post-ripening tank 4 through the second connecting port 8621 and the connecting pipe 87 to provide high-concentration flavor substrates for the post-ripening stage, the permeate collected in the third cylinder 861 is discharged from the system through the drain pipe arranged on the side wall of the third cylinder 861 and enters the waste liquid treatment unit, by selecting a ceramic membrane with a specific molecular weight cutoff, high-precision and high-efficiency enrichment of target flavor precursor substances is realized, and small molecular byproducts that may inhibit fermentation are effectively removed, which fundamentally optimizes and accelerates the post-ripening process.

[0035] The working principle of the present application: the sauce raw materials are put into from the feed inlet 10 at the top of the hydrolysis tank 2, the first stirring mechanism 5 is started, the first motor 51 drives the high shear dispersion disc 53 to rotate at high speed, the raw materials are subjected to violent shearing, crushing and homogenization, at the same time, the temperature control system of the hydrolysis tank 2 maintains the temperature in the tank at 50-60℃, which promotes the rapid enzymolysis of macromolecular substances such as protein and starch, generates flavor precursor substances such as amino acids and sugars, after the hydrolysis is completed, the material is quantitatively and continuously pumped into the fermentation tank 3 by the first screw pump 12, the material entering the fermentation tank 3 is subjected to gentle and efficient stirring by the shaft flow paddle 63 under the drive of the second stirring mechanism 6, the stirring ensures the uniform distribution of oxygen, nutrients and microorganisms, provides the best metabolic environment for aerobic and facultative anaerobic microorganisms (such as aspergillus and yeast), generates rich basic flavor substances such as alcohol, aldehyde and ketone, the temperature control system of the fermentation tank 3 independently maintains its optimum fermentation temperature (such as 30-40℃), the driving mechanism of the filter assembly 81 obtains power from the continuously rotating second main shaft 62, through a series of precise mechanical linkages such as sprocket, bevel gear, cam-rack, the rotational motion of the main shaft is converted into stable and continuous vertical reciprocating motion of the annular bailer 813, the annular bailer 813 is immersed in the fermentation liquid and scoops the material when it descends, in the rising process, the fermentation liquid is subjected to solid-liquid separation through the inclined filter screen 8131 at the top of the annular bailer 813, the clear liquid enters the collection cavity inside the bailer through the filter screen 8131, and the solids (mycelium, particles) are intercepted on the screen surface, the collected clear liquid is sent to the treatment unit outside the tank through the bottom delivery pipe 88 under the suction of the pump body 84, when the annular bailer 813 carrying the filter residue rises to a certain height, the scraper 826 of the scraping assembly 82 extends radially under the action of centrifugal force and contacts the surface of the filter screen 8131, as the bailer continues to rise, the scraper 826 adaptively scrapes the screen surface under the buffering of the first spring 822, so that the filter residue is completely scraped off and returns to the main body of the fermentation tank 3, which not only prevents the filter screen from being blocked, but also realizes the continuous recovery and intensive inoculation of active bacteria, the clear liquid from the fermentation tank 3 enters the ultrasonic treatment assembly 85, under the action of the spiral flow guide plate 852, the fluid path is lengthened to ensure uniformity of treatment, multiple ultrasonic generators 853 work simultaneously, the cavitation effect and strong mechanical vibration generated can effectively break the cell walls of microorganisms in the fermentation liquid, release intracellular enzymes and flavor substances, and greatly enhance the mass transfer efficiency, the spiral heat exchange flow channel 854 accurately controls the treatment temperature to prevent overheating, the activated fermentation liquid enters the membrane filtration assembly 86, is uniformly distributed to the inside of the multiple porous ceramic tubes 864, and is subjected to cross-flow filtration under pressure drive, the flavor precursor substances (macromolecules such as protein and polysaccharide) are intercepted by the membrane, the concentration is increased, and the fermentation liquid is transported to the post-ripening tank 4 through the connecting pipe 87 from the collection cylinder 862, the by-products such as water, small molecule organic acids and ethanol pass through the membrane holes and remain in the third cylinder body 861, which are discharged as waste liquid through the drain pipe 865, the fermentation inhibitors are removed,The material from the main stream of the fermentor 3 is mixed with the high-concentration flavor essence liquid refluxed from the extraction system in the post-ripening tank 4, the third stirring mechanism 7 is operated at low speed, the scraper 75 and the L-shaped plate 74 can effectively scrape the tank wall and the tank bottom to prevent the material from depositing, and the spiral plate 76 guides the gentle circulating flow in the tank, under the low temperature (such as 0-10℃) and the micro-anaerobic environment maintained by the independent temperature control system of the post-ripening tank 4, the slow esterification reaction and the association and balance of the flavor substances are carried out to form the complex sauce with thick and long final flavor, and the completely matured complex sauce is continuously or intermittently output from the bottom of the post-ripening tank 4 by the third spiral pump 14 and enters the filling link.

[0036] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A continuous fermentation device for a compound fermented sauce, comprising a support frame (1), characterized in that: The support (1) is equipped with a hydrolysis tank (2), a fermentation tank (3), and a post-ripening tank (4) arranged in a stepped manner from top to bottom. The hydrolysis tank (2) and the fermentation tank (3) are connected by a first spiral pump (12), and the fermentation tank (3) and the post-ripening tank (4) are connected by a second spiral pump (13). A third spiral pump (14) is installed at the bottom of the post-ripening tank (4). A feed inlet (10) is installed at the top of the hydrolysis tank (2). A first stirring mechanism (5), a second stirring mechanism (6), and a third stirring mechanism (7) are respectively installed inside the hydrolysis tank (2), the fermentation tank (3), and the post-ripening tank (4). A dynamic extraction circulation device (8) is installed outside the fermentation tank (3). The dynamic extraction circulation device (8) includes a scooping filter assembly (81) and a scraping assembly (82) installed inside the fermentation tank (3) and a box (83) installed outside the fermentation tank (3). Inside the box (83), a pump body (84), an ultrasonic treatment assembly (85) and a membrane filter assembly (86) are connected sequentially from top to bottom. A connecting pipe (87) is installed at the bottom of the membrane filter assembly (86). The connecting pipe (87) extends through to the post-ripening tank (4). The pump body (84) is connected to the scooping filter assembly (81) through a conveying pipe (88).

2. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The hydrolysis tank (2), fermentation tank (3) and post-ripening tank (4) are each equipped with an independent temperature control unit, including a temperature sensor installed on the hydrolysis tank (2), fermentation tank (3) and post-ripening tank (4), an insulation jacket (11) surrounding the outside of the hydrolysis tank (2), fermentation tank (3) and post-ripening tank (4), and a heater and cooler connected to the insulation jacket (11). The insulation jacket (11) has a spiral channel inside, and a heat exchange medium flows inside the spiral channel.

3. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The top of the hydrolysis tank (2), fermentation tank (3) and post-ripening tank (4) are all equipped with exhaust components (9). The exhaust components (9) include a first cylinder (91). The first cylinder (91) is installed on the tank. The top periphery of the first cylinder (91) is provided with multiple exhaust ports (913). The bottom middle of the first cylinder (91) is provided with an air inlet (911) that communicates with the inside of the tank. The top of the air inlet (911) is provided with a conical channel (912). The top wall of the first cylinder (91) is fixedly installed with a telescopic rod (92). The bottom of the telescopic rod (92) is fixedly installed with a compression ball (94). The bottom of the compression ball (94) is in close contact with the conical channel (912). A second spring (93) is provided between the compression ball (94) and the top wall of the first cylinder (91) and sleeved on the outside of the telescopic rod (92).

4. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The first stirring mechanism (5) includes a first motor (51), which is fixedly installed on the top of the hydrolysis tank (2). A first main shaft (52) is fixedly installed at the output end of the first motor (51), and the lower end of the first main shaft (52) extends through into the hydrolysis tank (2) and is fixedly installed with a high shear dispersion disk (53).

5. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The second stirring mechanism (6) includes a second motor (61), which is fixedly installed on the top of the fermentation tank (3). A second main shaft (62) is fixedly installed at the output end of the second motor (61). The bottom of the second main shaft (62) rotates through and extends into the interior of the fermentation tank (3). Multiple axial flow blades (63) are evenly fixedly installed on the outer surface of the second main shaft (62) from top to bottom.

6. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The third stirring mechanism (7) includes a third motor (71), which is fixedly installed on the top of the post-cooking tank (4). A third main shaft (72) is fixedly installed at the output end of the third motor (71). The bottom of the third main shaft (72) rotates through and extends into the interior of the post-cooking tank (4) and is fixedly installed with a fixed plate (73). Three L-shaped plates (74) are fixedly installed on the outer surface of the fixed plate (73). The bottom wall of the L-shaped plate (74) is slidably connected to the inner bottom wall of the post-cooking tank (4). A scraper (75) is fixedly installed on the side wall of the L-shaped plate (74). The scraper (75) scrapes on the side wall of the post-cooking tank (4). A spiral plate (76) is fixedly installed on the inner wall of multiple L-shaped plates (74).

7. The continuous fermentation equipment for a compound fermented sauce according to claim 5, characterized in that: The scooping assembly (81) includes a drive assembly (811), a reciprocating lifting assembly (812), and an annular scooping bucket (813). Two reciprocating lifting assemblies (812) are provided, installed on the left and right sides of the top wall of the fermenter (3), respectively. The bottom of both reciprocating lifting assemblies (812) is fixedly mounted with an annular scooping bucket (813). The drive assembly (811) drives the two reciprocating lifting assemblies (812) to work synchronously. Each reciprocating lifting assembly (812) includes a lifting rod (8121) and a connecting plate (81213). The lifting rod (8121) is fixedly mounted on one side of the top wall of the fermenter (3), and a support plate (8122) is fixedly mounted at the bottom of the lifting rod (8121). A fixed plate (81218) is fixedly installed in the middle of the inner side. The drive assembly (811) includes a first sprocket (8111) and two second sprockets (8112). The first sprocket (8111) is fixedly installed on the outer surface of the second main shaft (62). The two second sprockets (8112) are rotatably installed on the fixed plates (81218) on both sides via rotating shafts. A chain (8113) is wound around the outer sides of the second sprockets (8112) and the first sprockets (8111). The bottom rotating shaft of the second sprocket (8112) rotates through the fixed plate (81218) and is fixedly installed with a first bevel gear (8123). A rotating rod (8125) is rotatably installed in the middle of the support plate (8122). A second bevel gear (8124) is fixedly mounted on one end of the rod (8125), and the first bevel gear (8123) meshes with the second bevel gear (8124). A drive gear (8126) is fixedly mounted on the other end of the rotating rod (8125). A first shaft (8127) and a second shaft (81210) are rotatably mounted on both sides of the support plate (8122) near the drive gear (8126). A first driven gear (8128) and a first cam (8129) are fixedly mounted on the first shaft (8127), and a second driven gear (81211) and a second cam (81212) are fixedly mounted on the second shaft (81210). The drive gear (8126) meshes with the second... Both the driven gear (81211) and the first driven gear (8128) are meshed. The connecting plate (81213) is located between the second cam (81212) and the first cam (8129). A sliding groove is provided in the middle of the connecting plate (81213). A sliding rod (81214) is fixedly installed in the sliding groove. A limiting plate (81217) is slidably installed on the outer surface of the sliding rod (81214). The limiting plate (81217) is in close contact with the inner wall of the sliding groove. The end of the limiting plate (81217) away from the connecting plate (81213) is fixedly connected to the inner wall of the fermenter (3). A first rack (81215) and a second rack (81216) are fixedly installed at both ends of the connecting plate (81213).Both the second cam (81212) and the first cam (8129) have several teeth fixedly installed on their outer surfaces. The first rack (81215) meshes with the teeth of the second cam (81212), and the second rack (81216) meshes with the teeth of the first cam (8129). The outer surfaces of the annular bucket (813) are fixedly connected to the bottom of the connecting plates (81213) on both sides. A filter screen (8131) is fixedly installed on the upper end of the annular bucket (813). The upper end of the filter screen (8131) is inclined downwards towards the center. The inner bottom wall of the annular bucket (813) is connected to the conveying pipe (88). The annular bucket (813) is sleeved on the outside of the axial flow blade (63).

8. The continuous fermentation equipment for a compound fermented sauce according to claim 7, characterized in that: The scraping assembly (82) includes a first baffle (821) and a second baffle (827). The first baffle (821) and the second baffle (827) are both fixedly installed on the upper part of the outer surface of the second main shaft (62). An annular block (824) is slidably installed on the outer surface of the second main shaft (62). A limiting block (823) is fixedly installed on the outer surface of the second main shaft (62) between the first baffle (821) and the second baffle (827). A limiting block is formed on the inner wall of the annular block (824). The groove (8241) is in which the limiting block (823) slides. The outer surface of the second main shaft (62) is fitted with a first spring (822) located between the first baffle (821) and the annular block (824). Connecting rods (825) are fixedly installed on both sides of the outer surface of the annular block (824). A scraper (826) is fixedly installed on the bottom of the connecting rod (825) away from the annular block (824). The scraper (826) can scrape on the filter screen (8131).

9. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The ultrasonic processing assembly (85) includes a second cylinder (851), a spiral guide plate (852) is fixedly installed on the inner wall of the second cylinder (851), a first pipe (855) and a second pipe (856) are fixedly installed at both ends of the second cylinder (851), a plurality of ultrasonic generators (853) are uniformly fixedly installed on the outer surface of the second cylinder (851), a spiral heat exchange channel (854) is opened on the inner wall of the second cylinder (851), the first pipe (855) is connected to the pump body (84), and the second pipe (856) is connected to the membrane filter assembly (86).

10. The continuous fermentation equipment for a compound fermented sauce according to claim 1, characterized in that: The membrane filtration assembly (86) includes a third cylinder (861), a drain pipe (865) is fixedly installed on the bottom of the side wall of the third cylinder (861), a distribution cylinder (863) and a collection cylinder (862) are fixedly installed on both sides of the inner wall of the third cylinder (861), and a plurality of evenly arranged porous ceramic tubes (864) are fixedly connected between the distribution cylinder (863) and the collection cylinder (862). A first connection port (8631) is fixedly installed on the side of the distribution cylinder (863) near the third cylinder (861), and the first connection port (8631) is connected to a second connecting pipe (856). A second connection port (8621) is fixedly installed on the side of the collection cylinder (862) near the third cylinder (861), and a connecting pipe (87) is fixedly connected to the second connection port (8621).

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