Enzyme preparation constant temperature fermentation tank for food additive

Abstract

The application discloses a constant-temperature fermentation tank for enzyme preparation of food additives, and relates to the technical field of food additive production equipment, which comprises a bottom plate mechanism, a support assembly is fixedly connected to the top surface of the bottom plate mechanism, a constant-temperature heating tank with an electric heating structure is arranged on the inner side of the bottom plate mechanism and the support assembly, a supporting mechanism is fixedly connected to the left side of the support assembly, the mechanical positioning structure of a transmission screw rod and a sliding block is used to ensure that the injection pipe is accurately connected with the circulating mechanism, the mechanical pumping force of a drainage pump is used to forcibly drive the directional flow of hot water, a mechanical circulating link of "high-pressure injection at the front end and negative pressure backflow at the tail end" is formed, compared with the traditional gravity type circulation, the rigidity mechanical connection is used to eliminate the hysteresis of the fluid self-flow, the hot water flow rate in the circulating mechanism is significantly improved, the peripheral temperature uniformity of the fermentation assembly is significantly improved, and the denaturation and inactivation of enzyme proteins caused by local overheating are avoided.

Description

Technical Field

[0001] This invention relates to the field of food additive production equipment technology, specifically to a constant temperature fermentation tank for enzyme preparations used in food additives. Background Technology

[0002] Enzyme preparations are an important food additive with wide applications in the food industry. Fermentation is one of the key steps in the production of enzyme preparations. The fermentation process is extremely sensitive to temperature. Temperature fluctuations can significantly affect enzyme activity and fermentation efficiency, thereby affecting the quality and yield of enzyme preparations.

[0003] In the prior art, such as Chinese Patent Publication No. CN111925916B, a production equipment and working method for solid-state fermentation enzyme preparations are disclosed. The equipment includes a fermenter, with support legs fixedly connected to the four corners of the fermenter's bottom. Symmetrical platforms are arranged on both sides of the fermenter's bottom. A bearing plate is symmetrically fixedly connected to one side of the top of each platform, and a fixing plate is symmetrically arranged on the other side of the top of each platform. Positioning columns are symmetrically fixedly connected to the top and bottom of the fixing plate near the bearing plate. A shock-absorbing spring is fixedly connected to the middle of one side of the fixing plate, and a fixing bolt is located in the middle of the other side of the fixing plate. A support platform is fixedly connected to the center of the inner wall of the fermenter's bottom. This invention uses an electric heating element to heat the reaction liquid at a constant temperature, accelerating the fermentation reaction. A drive motor drives a rotating shaft to rotate, causing a rotating column to rotate on the support platform. The stirring column stirs the reaction liquid, ensuring uniform diffusion of the heated liquid.

[0004] In the existing technology, the existing fermenters used for enzyme production have certain deficiencies in temperature control. Although some fermenters are equipped with temperature control systems and insulation structures on the outside of the fermenter, the insulation operation mainly relies on the circulation of hot water. When the hot water circulates to the later stage, the water temperature in the later stage can easily drop because the water flowing in the front exchanges too much heat with the outside or the fermentation material, which will affect the insulation operation of the fermenter.

[0005] Therefore, we propose a constant-temperature fermentation tank for enzyme preparations used as food additives to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this invention is to provide a constant-temperature fermentation tank for enzyme preparations used as food additives, in order to solve the problem that although the fermentation tanks mentioned in the background art are equipped with a temperature control system and are kept warm by setting a corresponding heat preservation structure on the outside of the fermentation tank, the heat preservation operation mainly relies on the circulation of hot water. When the hot water circulates to the later stage, it is easy for the water in the front flow to exchange too much heat with the outside or the fermentation material, which will cause the water temperature in the later stage to drop, thus affecting the heat preservation operation of the fermentation tank.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a constant temperature fermentation tank for enzyme preparations used as food additives, comprising a bottom plate mechanism, a support assembly fixedly connected to the top surface of the bottom plate mechanism, and a constant temperature heating tank with an electric heating structure placed inside the bottom plate mechanism and the support assembly.

[0008] A support mechanism is fixedly connected to the left side of the bracket assembly. A transverse groove is formed on the rear side of the support mechanism. A servo motor B is mounted on the left end face of the support mechanism. A transmission screw is mounted on the right output shaft of the servo motor B via a coupling. A moving component is installed inside the transverse groove on the rear side of the support mechanism. The moving component has a screw hole matching the transmission screw inside, and sliders with protruding structures are fixedly connected to both the upper and lower sides of the moving component. A longitudinal groove is formed inside the moving component, and a longitudinally arranged servo push rod is fixedly connected inside this longitudinal groove. The front end of the servo push rod is fixedly connected to... The sliding block has two connecting plates fixedly connected to its upper and lower sides, respectively. An injection pipe is fixedly connected to the inner side of each connecting plate. Injection holes are arranged in a ring array on the outer circumference of the injection pipe. A drainage pipe is fixedly connected to the side of the injection pipe furthest from the connecting plates. A drainage pump is fixedly connected to the outer side of the drainage pipe. The side of the drainage pipe furthest from the injection pipe is connected to a constant-temperature heating tank. There are two drainage pipes: the lower drainage pipe is used to obtain hot water from inside the constant-temperature heating tank, and the upper drainage pipe is used to draw cold water from inside the circulation mechanism and return it to the constant-temperature heating tank.

[0009] Preferably, the outer peripheral right side of the constant temperature heating tank is fixedly connected to an inlet pipe for feeding liquid into the constant temperature heating tank, and the support mechanism is a rectangular frame structure.

[0010] Preferably, a support leg assembly is fixedly connected to the bottom end face of the support mechanism. There are two support leg assemblies, which are arranged in a longitudinal array and fixedly connected to the front and rear sides of the bottom end face of the support mechanism. A fermentation component of a horizontal fermentation tank structure is fixedly connected to the inner side of the support mechanism, and a discharge pipe is fixedly connected to the bottom end of the outer peripheral surface of the fermentation component.

[0011] Preferably, a feed pipe is fixedly connected to the top of the outer peripheral surface of the fermentation component, and the feed pipe and the discharge pipe are staggered. A servo motor A is fixedly connected to the left end face of the fermentation component, and a screw is installed on the right output shaft of the servo motor A.

[0012] Preferably, the servo motor A and the spiral component together form a stirring and feeding structure, and the circulation mechanism is a spiral structure. There are two circulation mechanisms, which are arranged in a linear array and sleeved on the left and right sides of the outer peripheral surface of the fermentation component.

[0013] Preferably, the front end of the circulation mechanism is fixedly connected to an inlet pipe and an outlet pipe in a linear array. The inlet pipe is connected to the outlet pipe through the circulation mechanism, and a control valve A is fixedly connected to the outside of both the inlet pipe and the outlet pipe.

[0014] Preferably, the front ends of both inlet pipes are fitted with connecting elbows via flanges, and the front ends of both outlet pipes are fixedly connected with connecting branch pipes via flanges. A hot water pipe is fixedly connected to the front face of the constant temperature heating tank. The hot water pipe is connected to the two connecting elbows.

[0015] Preferably, a return pipe is fixedly connected to the front end of the outer periphery of the constant temperature heating tank, and the return pipe is connected to two connecting branch pipes. A pump is fixedly connected to the outside of both the return pipe and the hot water pipe.

[0016] Preferably, the middle section of the circulation mechanism is fixedly connected to a connecting pipe mechanism, and a control valve B is installed inside the connecting pipe mechanism. A temperature measuring component is fixedly connected to the front end face of the control valve B. When the circulation mechanism is sleeved on the outside of the fermentation component, the temperature measuring component is in a state of contact with the outer wall of the fermentation component for detection.

[0017] Preferably, the outer circulatory mechanism is fixedly connected in a linear array with an extraction pipe and a pumping pipe. The extraction pipe and the pumping pipe are separated by a control valve B. The extraction pipe is used to extract liquid from the inside of the circulatory mechanism, and the pumping pipe is used to supply liquid to the rear section of the circulatory mechanism. A spring is fixedly connected inside both the extraction pipe and the pumping pipe. One end of the spring is fixedly connected to a baffle assembly and a plug assembly. The baffle assembly and the plug assembly are squeezed apart by an injection pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When using this invention, the mechanical positioning structure of the transmission screw and slider ensures precise docking between the injection pipe and the circulation mechanism. The mechanical pumping force of the diversion pump forces the hot water to flow in a specific direction, forming a mechanical circulation link of "high-pressure injection at the front end and negative-pressure return at the end". Compared with the traditional gravity circulation, this design eliminates the lag of fluid self-flow through rigid mechanical connection, significantly increasing the hot water flow rate in the circulation mechanism, ensuring a significant improvement in the uniformity of the temperature on the outer periphery of the fermentation component, and avoiding enzyme protein denaturation and inactivation caused by local overheating.

[0020] 2. In use, the metal contact rod of the temperature measuring component is in rigid contact with the outer wall of the fermentation component through the spring pin. The temperature change is directly converted into mechanical displacement to drive the slide valve of control valve B. When the temperature exceeds the threshold, the mechanical linkage pushes the slide valve to open the extraction tube, and the high-temperature fluid is discharged by the suction of the dredging pump. The low-temperature section is injected with preheated fluid through the mechanical connection between the pump liquid pipe and the hot water pipe. The conical sealing structure of the spring component and the plug assembly achieves a leak-free connection through the mechanical compression of the injection pipe. The entire system can complete the entire process of "temperature measurement-conduction-regulation" without electricity. It can still maintain the temperature control function in the event of power failure or control system failure, meeting the stringent requirements for equipment reliability in food production.

[0021] 3. When this invention is used, the long-axis structure of the horizontal fermentation component, combined with the variable pitch blade design of the spiral component, generates a compound motion of "axial pushing + radial tumbling" during mechanical rotation: the axial thrust causes the material to move along the entire length of the tank, while the 45° tilt angle of the radial blades forces the material to tumble and shear. At the same time, the spiral channel of the circulation mechanism applies a reverse circumferential torque to the tank, forming a mechanical coupling effect of "forward rotation of the stirring shaft and slight reverse vibration of the tank", which further tears apart material clumps. Moreover, the mixing uniformity is naturally guaranteed by the mechanical structure design, without relying on sensor feedback adjustment.

[0022] 4. When using this invention, a fully mechanical positioning system is constructed through the dovetail groove cooperation between the transmission screw and the slider, and the lead screw transmission between the servo push rod and the sliding block. The spiral component and the servo motor A are driven by rigid gears through a gear reducer, avoiding the risk of slippage of belt transmission. Stable torque output can still be maintained in a high-humidity fermentation environment. The pure mechanical linkage transmission between the temperature measuring component and the control valve B eliminates potential electrical faults such as electromagnetic interference and aging of circuits, making it particularly suitable for the complex electromagnetic environment of food processing workshops.

[0023] 5. When using this invention, the support mechanism and the base plate mechanism can be quickly disassembled and assembled via bolts, and the fermentation components can be lifted as a whole for deep cleaning; the inlet and outlet pipes of the circulation mechanism adopt clamp-type quick-release flanges, which can complete the separation of the pipes within seconds, making it convenient to regularly remove the biofilm on the inner wall of the pipes; the mechanical quick-connect interface of the injection pipe and the drainage pipe adopts a spring-locking structure, and the connection can be disconnected simply by pressing the lock during maintenance, without the need for tools; the bearing seat of the spiral component adopts a split design, and the bearing assembly can be disassembled by loosening a bolt, reducing the replacement cycle from hours in the traditional integral structure to minutes, significantly improving the equipment utilization rate.

[0024] 6. In use, mechanical limit blocks are set at both ends of the transmission screw. When the moving component reaches the limit position, the limit block makes rigid contact with the flange of the support mechanism to prevent overload damage. The shaft of the spiral component has a built-in shear pin overload protection device. When the material viscosity is too high and the torque exceeds the set value, the shear pin breaks and cuts off the power transmission to avoid motor burnout. The spiral pipe and the connecting pipe mechanism of the circulation mechanism adopt a double fixing process of expansion and welding, which extends the service life of the equipment to more than 10 years. The spring component is treated with anti-corrosion coating, and the stainless steel material of the plunger component reduces the occurrence of rust. Attached Figure Description

[0025] Figure 1 This is a front perspective view of a disassembled constant-temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0026] Figure 2 This is a rear perspective view of a constant temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0027] Figure 3 This is a perspective view of the servo motor B and transmission screw combination in a constant temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0028] Figure 4 This is a perspective view of the combination of the circulation mechanism and the connecting pipe mechanism of a constant temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0029] Figure 5 This is a perspective view of the spring component and baffle assembly of a constant temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0030] Figure 6 This is a top-side perspective view of a constant-temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0031] Figure 7 This is a left perspective view of a constant temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0032] Figure 8This is a perspective view of the fermentation components and discharge pipe assembly of a constant-temperature fermentation tank for enzyme preparations used as food additives according to the present invention.

[0033] In the diagram: 1. Base plate mechanism; 101. Support assembly; 1011. Constant temperature heating tank; 1012. Cold water inlet pipe; 2. Support mechanism; 201. Support leg assembly; 2011. Fermentation component; 2012. Discharge pipe; 2013. Feed pipe; 2014. Servo motor A; 2015. Spiral component; 3. Servo motor B; 301. Transmission screw; 3011. Moving assembly; 3012. Slider; 3013. Servo push rod; 3014. Sliding block; 3015. Connecting plate; 3016. Injection pipe; 30 17. Injection port; 3018. Drainage pipe; 3019. Drainage pump; 4. Circulation mechanism; 401. Inlet pipe; 4011. Outlet pipe; 4012. Control valve A; 4013. Connecting bend; 4014. Connecting branch pipe; 4015. Hot water pipe; 4016. Return pipe; 4017. Extraction pump; 5. Connecting mechanism; 501. Control valve B; 5011. Temperature measuring component; 5012. Extraction pipe; 5013. Pumping pipe; 5014. Spring component; 5015. Baffle assembly; 5016. Plug assembly. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1, please refer to Figures 1-8 As shown, the present invention provides a technical solution: a constant temperature fermentation tank for enzyme preparations for food additives, including a bottom plate mechanism 1, a support assembly 101 fixedly connected to the top surface of the bottom plate mechanism 1, and a constant temperature heating tank 1011 with an electric heating structure placed inside the bottom plate mechanism 1 and the support assembly 101.

[0036] A support mechanism 2 is fixedly connected to the left side of the bracket assembly 101. A transverse groove is provided on the rear side of the support mechanism 2. A servo motor B3 is mounted on the left end face of the support mechanism 2. A transmission screw 301 is mounted on the right output shaft of the servo motor B3 via a coupling. A moving component 3011 is installed inside the transverse groove on the rear side of the support mechanism 2. A screw hole matching the transmission screw 301 is provided inside the moving component 3011. A slider 3012 with a protruding structure is fixedly connected to both the upper and lower sides of the moving component 3011. The moving component 3011 has a longitudinal groove inside, and a longitudinally arranged servo push rod 3013 is fixedly connected inside the longitudinal groove. A sliding block 3014 is fixedly connected to the front end of the servo push rod 3013. Two connecting plates 3015 are fixedly connected to the upper and lower sides of the sliding block 3014 in an opposing manner. An injection tube 3016 is fixedly connected to the inner side of each of the two connecting plates 3015. An injection hole 3017 is formed in a ring array on the outer circumference of the injection tube 3016. The injection hole 3017 in the injection tube 3016 is located away from the connecting plate 3015. A drain pipe 3018 is fixedly connected to one side, and a drain pump 3019 is fixedly connected to the outside of the drain pipe 3018. The side of the drain pipe 3018 away from the injection pipe 3016 is connected to the constant temperature heating tank 1011. There are two drain pipes 3018. The lower drain pipe 3018 is used to obtain hot water from the inside of the constant temperature heating tank 1011, and the upper drain pipe 3018 is used to draw cold water from the inside of the circulation mechanism 4 and return it to the constant temperature heating tank 1011. The outer circumference of the constant temperature heating tank 1011... A cold water inlet pipe 1012 for feeding liquid into the constant temperature heating tank 1011 is fixedly connected to the right side. The support mechanism 2 is a rectangular frame structure. A support leg assembly 201 is fixedly connected to the bottom surface of the support mechanism 2. There are two support leg assemblies 201. The two support leg assemblies 201 are arranged in a longitudinal array and fixedly connected to the front and rear sides of the bottom surface of the support mechanism 2. A fermentation component 2011 with a horizontal fermentation tank structure is fixedly connected to the inner side of the support mechanism 2. A discharge pipe 2012 is fixedly connected to the bottom of the outer periphery of the fermentation component 2011.

[0037] In this embodiment, during use, the constant temperature heating tank 1011 is injected with liquid medium through the cold water inlet pipe 1012. The internal electric heating structure is activated, and the liquid is heated and stored in the tank. After the servo motor B3 is powered on, it drives the transmission screw 301 to rotate. The moving component 3011 moves horizontally along the rear transverse groove of the support mechanism 2 through the upper and lower sliders 3012 because the internal screw hole engages with the transmission screw 301. This continues until the injection pipe 3016 is aligned with the front end of the circulation mechanism 4.

[0038] The lower drainage pipe 3018 is connected to the constant temperature heating tank 1011. After the drainage pump 3019 is started, the heated liquid in the tank is sprayed into the inlet end of the circulation mechanism 4 through the injection holes 3017 of the outer ring array of the injection pipe 3016, forming a high-pressure jet to push the liquid forward.

[0039] After heat exchange, the temperature of the liquid at the end of the circulation mechanism 4 decreases. The upper drainage pipe 3018 pumps the low-temperature liquid back to the constant temperature heating tank 1011 for reheating via the drainage pump 3019, realizing a closed-loop circulation path of "heat injection at the front end and cooling at the end". The core of the mechanical connection is that the threaded engagement between the transmission screw 301 and the moving component 3011 achieves lateral positioning. The servo push rod 3013 pushes the sliding block 3014 to adjust the longitudinal height of the injection pipe 3016, ensuring alignment with the interface of the circulation mechanism 4. The drainage pipe 3018 is rigidly connected to the constant temperature heating tank 1011 and the injection pipe 3016 through a flange to ensure fluid sealing.

[0040] Example 2, as Figures 1-6 As shown, a feed pipe 2013 is fixedly connected to the top of the outer peripheral surface of the fermentation component 2011. The feed pipe 2013 and the discharge pipe 2012 are staggered. A servo motor A2014 is fixedly connected to the left end face of the fermentation component 2011. A spiral component 2015 is installed on the right output shaft of the servo motor A2014. The servo motor A2014 and the spiral component 2015 together form a stirring and feeding structure. The circulation mechanism 4 is a spiral structure. There are two circulation mechanisms 4. The two circulation mechanisms 4 are arranged in a linear array and sleeved on the left and right sides of the outer peripheral surface of the fermentation component 2011. The front end of the circulation mechanism 4 is fixedly connected to the liquid inlet pipe 401 and the liquid outlet pipe 4011 in a linear array. The liquid inlet pipe 401 is connected to the liquid outlet pipe 4011 through the circulation mechanism 4. A control valve A4012 is fixedly connected to the outside of both the liquid inlet pipe 401 and the liquid outlet pipe 4011.

[0041] In this embodiment, during use, the fermentation component 2011 is arranged horizontally with the horizontal axis as the center. It is bolted to the C-shaped bracket of the support mechanism 2 through flanges at both ends. The support leg component 201 at the bottom of the bracket adopts an adjustable foot structure. The tank level can be finely adjusted by rotating the screw. The servo motor A2014 is fixed to the left end of the support mechanism 2 through an L-shaped cast iron bracket. Its output shaft is rigidly connected to the solid shaft of the screw component 2015 through an elastic coupling. The coupling has a built-in cross sliding block structure. The right end of the screw component 2015 is supported by a sliding bearing seat. The bearing seat and the tank end cover adopt a stop fit.

[0042] The feed pipe 2013 and discharge pipe 2012 are diagonally distributed and both are connected to the tank body via flanges. The feed pipe 2013 has a built-in gate valve, which is opened and closed by a screw and nut mechanism driven by a handwheel. The discharge pipe 2012 has a built-in ball valve, with the valve stem linked to a worm gear reducer. The opening can be adjusted by rotating a handle at a large angle. An elliptical manhole is provided at the top of the tank body. The manhole cover is connected to the tank body by a hinge. When closed, the rubber sealing ring is tightened by the surrounding bolts to achieve a seal.

[0043] The servo motor A2014 is reduced in speed by a gear reducer. The input and output shafts of the reducer are driven by helical gears. The reducer housing and the motor bracket are fixed by locating pins to ensure the coaxiality of the shaft system. The surface of the 2015 spiral part is rolled with anti-slip texture to form an interference fit with the keyway in the inner hole of the blade. It is fixed by a stop screw to prevent the blade from moving axially.

[0044] When the motor starts, the screw 2015 rotates clockwise. The blades in the feeding section push the material to the right. The sawtooth blades in the mixing section generate centrifugal force as the diameter increases, throwing the material against the tank wall. At the same time, the double-lead structure forces the material to be axially compressed, forming crushed agglomerates by extrusion. The left-hand rotating blades in the discharge section push the material on the right side to the left, creating an opposition with the pushing force of the feeding section. The material forms a vortex zone in the middle of the tank, prolonging the residence time.

[0045] When hot water flows into the circulation mechanism 4 from the inlet pipe 401, the spiral pipe forces the fluid to swirl clockwise. The friction of the fluid against the inner wall of the pipe generates a counterclockwise reaction torque, which is transmitted to the tank through the clamp, causing the tank to oscillate slightly. This oscillation is mechanically coupled with the rotation of the spiral component 2015: the oscillation of the tank causes the material to move radially, while the axial thrust of the spiral blades maintains the axial flow of the material. The two work together to form a compound motion of "axial pushing + radial oscillation", which prevents the material from forming stratification inside the tank.

[0046] The bracket of the support mechanism 2 is connected to the base plate mechanism 1 by bolts, and can be lifted off the tank as a whole during disassembly; the bearing seat of the spiral component 2015 has a split structure, and the top cover can be removed and the shaft assembly can be taken out by loosening the top bolts; the clamp of the circulation mechanism 4 adopts a quick-release snap ring design, and the clamp can be released by pressing the snap ring, which facilitates the disassembly and cleaning of the pipeline.

[0047] Both the inlet pipe 2013 and the outlet pipe 2012 are equipped with guide grooves to prevent residual material from dripping during disassembly; a scraper is installed on the inside of the manhole cover, which can automatically scrape off the material adhering to the tank wall when opened, reducing the amount of cleaning work.

[0048] Example 3, as Figures 5-8As shown, the front ends of both inlet pipes 401 are fitted with connecting elbows 4013 via flanges, and the front ends of both outlet pipes 4011 are fixedly connected to connecting branch pipes 4014 via flanges. A hot water pipe 4015 is fixedly connected to the front face of the constant temperature heating tank 1011. The hot water pipe 4015 is connected to the two connecting elbows 4013. A return pipe 4016 is fixedly connected to the front end of the outer periphery of the constant temperature heating tank 1011. The return pipe 4016 is connected to the two connecting branch pipes 4014. A pump 4017 is fixedly connected to the outside of both the return pipe 4016 and the hot water pipe 4015. A connecting pipe mechanism 5 is fixedly connected to the middle section of the circulation mechanism 4. A control valve B501 is installed inside the connecting pipe mechanism 5. A temperature measuring component 5011 is fixedly connected to the front face of the control valve B501. When the circulation mechanism 4 is sleeved on the outside of the fermentation component 2011, the temperature measuring component 5011 is in contact with the fermentation component 2011. In the outer wall contact detection state, the outer peripheral surface of the circulation mechanism 4 is fixedly connected in a linear array with an extraction pipe 5012 and a pumping pipe 5013. The extraction pipe 5012 and the pumping pipe 5013 are separated by a control valve B501. The extraction pipe 5012 is used to extract liquid from the inside of the circulation mechanism 4, and the pumping pipe 5013 is used to supply liquid to the rear part of the circulation mechanism 4. The inside of both the extraction pipe 5012 and the pumping pipe 5013 is fixedly connected with a spring member 5014. One end of the spring member 5014 is fixedly connected with a baffle assembly 5015 and a plug assembly 5016. The baffle assembly 5015 and the plug assembly 5016 are squeezed and pushed apart by the injection pipe 3016.

[0049] In this embodiment, during use, the temperature measuring component 5011 adopts a bimetallic strip mechanical sensor. One end of its temperature sensing element is fixed to the housing of the connecting pipe mechanism 5, and the other end is connected to the valve core of the control valve B501 through a connecting rod. The bimetallic strip is made of brass and steel sheets rolled together. When the temperature rises, it bends towards the steel sheet side, pushing the valve core to move axially through the connecting rod; when the temperature drops, it bends in the opposite direction, driving the valve core to reset. The connecting rod and the valve core are hinged by a pin, and torsion springs are set at both ends of the pin to ensure that there is no backlash in the transmission chain.

[0050] When the injection pipe 3016 approaches the connecting pipe mechanism 5, the outer conical surface first contacts the plug assembly 5016. As it continues to advance, the conical surface comes into contact with the plug, simultaneously compressing the spring element 5014. When the set stroke is reached, the valve core of the control valve B501 completes the switching, achieving a synchronized action of "mechanical docking - valve opening." Upon retraction, the elastic force of the spring element 5014 pushes the plug to reset, separating the injection pipe 3016 from the plug and automatically closing the channel.

[0051] The spiral agitator of the horizontal fermenter achieves constant torque transmission through a gear reducer. The fluid reaction torque of the circulation mechanism 4 forms a mechanical vibration coupling with the tank body, which enhances the mixing effect without additional power. It realizes the integrated mechanical linkage of "stirring-heat transfer-temperature control", completely eliminating the complexity of traditional electrical control systems, improving the equipment's anti-interference ability in high humidity and dust environments, and significantly reducing maintenance difficulty through the detachable design of the pure mechanical structure, meeting the stringent requirements of food processing equipment for hygiene and reliability.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A constant-temperature fermentation tank for enzyme preparations used as food additives, comprising a bottom plate mechanism (1), wherein a support assembly (101) is fixedly connected to the top surface of the bottom plate mechanism (1), characterized in that, A constant temperature heating tank (1011) with an electric heating structure is placed inside the base plate mechanism (1) and the support assembly (101). A support mechanism (2) is fixedly connected to the left side of the bracket assembly (101). A transverse groove is provided on the rear side of the support mechanism (2). A servo motor B (3) is installed on the left end face of the support mechanism (2). A transmission screw (301) is installed on the right output shaft of the servo motor B (3) via a coupling. A moving component (3011) is installed inside the transverse groove on the rear side of the support mechanism (2). A screw hole matching the transmission screw (301) is provided inside the moving component (3011). A slider (3012) with a protruding structure is fixedly connected to both the upper and lower sides of the moving component (3011). A longitudinal groove is provided inside the moving component (3011). A longitudinally arranged servo pusher is fixedly connected inside the longitudinal groove. A sliding block (3014) is fixedly connected to the front end of the rod (3013). Two connecting plates (3015) are fixedly connected to the upper and lower sides of the sliding block (3014) in opposite directions. An injection pipe (3016) is fixedly connected to the inner side of the two connecting plates (3015). An injection hole (3017) is opened in a ring array on the outer circumference of the injection pipe (3016). A drainage pipe (3018) is also fixedly connected to the side of the injection pipe (3016) away from the connecting plate (3015). A drainage pump (3019) is fixedly connected to the outer side of the drainage pipe (3018). The side of the drainage pipe (3018) away from the injection pipe (3016) is connected to the constant temperature heating tank (1011). There are two drainage pipes (3018). The lower drainage pipe (3018) is used to obtain hot water from the inside of the constant temperature heating tank (1011), and the upper drainage pipe (3018) is used to draw cold water from the inside of the circulation mechanism (4) and return it to the constant temperature heating tank (1011). The middle section of the circulation mechanism (4) is fixedly connected to a connecting pipe mechanism (5). A control valve B (501) is installed inside the connecting pipe mechanism (5). A temperature measuring component (5011) is fixedly connected to the front end of the control valve B (501). When the circulation mechanism (4) is sleeved on the outside of the fermentation component (2011), the temperature measuring component (5011) is in a state of contact with the outer wall of the fermentation component (2011) for detection. The outer circulatory mechanism (4) is fixedly connected in a straight array with an extraction pipe (5012) and a pumping pipe (5013). The extraction pipe (5012) and the pumping pipe (5013) are separated by a control valve B (501). The extraction pipe (5012) is used to extract liquid from the inside of the circulatory mechanism (4), and the pumping pipe (5013) is used to supply liquid to the rear part of the circulatory mechanism (4). The extraction pipe (5012) and the pumping pipe (5013) are both fixedly connected with a spring (5014). One end of the spring (5014) is fixedly connected with a baffle assembly (5015) and a plunger assembly (5016). The baffle assembly (5015) and the plunger assembly (5016) are squeezed apart by an injection pipe (3016).

2. The constant-temperature fermentation tank for enzyme preparations used as food additives according to claim 1, characterized in that: The outer periphery of the constant temperature heating tank (1011) is fixedly connected to a cold water inlet pipe (1012) for introducing liquid into the constant temperature heating tank (1011), and the support mechanism (2) is a rectangular frame structure.

3. The constant temperature fermentation tank for enzyme preparations used as food additives according to claim 2, characterized in that: The support mechanism (2) has a leg assembly (201) fixedly connected to its bottom end surface. There are two leg assemblies (201). The two leg assemblies (201) are fixedly connected in a longitudinal array to the front and rear sides of the bottom end surface of the support mechanism (2). The support mechanism (2) has a fermentation component (2011) of a horizontal fermentation tank structure fixedly connected to its inner side. The fermentation component (2011) has a discharge pipe (2012) fixedly connected to the bottom of its outer peripheral surface.

4. The constant temperature fermentation tank for enzyme preparations used as food additives according to claim 3, characterized in that: The fermentation component (2011) is fixedly connected to the top of the outer peripheral surface of the fermentation component (2011) with a feed pipe (2013) and a discharge pipe (2012) being staggered. A servo motor A (2014) is fixedly connected to the left end face of the fermentation component (2011), and a spiral component (2015) is installed on the right output shaft of the servo motor A (2014).

5. A constant-temperature fermentation tank for enzyme preparations used as food additives according to claim 4, characterized in that: The servo motor A (2014) and the spiral component (2015) together form a stirring and feeding structure, and the circulation mechanism (4) is a spiral structure. There are two circulation mechanisms (4), and the two circulation mechanisms (4) are arranged in a straight line array on the left and right sides of the outer circumference of the fermentation component (2011).

6. The constant-temperature fermentation tank for enzyme preparations used as food additives according to claim 5, characterized in that: The front end of the circulation mechanism (4) is fixedly connected to the inlet pipe (401) and the outlet pipe (4011) in a straight array. The inlet pipe (401) is connected to the outlet pipe (4011) through the circulation mechanism (4). Control valve A (4012) is fixedly connected to the outside of both the inlet pipe (401) and the outlet pipe (4011).

7. A constant-temperature fermentation tank for enzyme preparations used as food additives according to claim 6, characterized in that: The front ends of the two liquid inlet pipes (401) are each fitted with a connecting elbow (4013) via a flange. The front ends of the two liquid outlet pipes (4011) are each fixedly connected with a connecting branch pipe (4014) via a flange. A hot water pipe (4015) is fixedly connected to the front end of the constant temperature heating tank (1011). The hot water pipe (4015) is connected to the two connecting elbows (4013).

8. A constant-temperature fermentation tank for enzyme preparations used as food additives according to claim 7, characterized in that: The constant temperature heating tank (1011) is fixedly connected to a return pipe (4016) at the front end of its outer periphery. The return pipe (4016) is connected to two connecting branch pipes (4014). A pump (4017) is fixedly connected to the outside of both the return pipe (4016) and the hot water pipe (4015).

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