Compound processing equipment for health food

Abstract

This invention relates to the field of health food production and processing technology, specifically to a composite production and processing equipment for health foods. It includes a main body comprising a sterilization tank, which consists of a tank body and a lid sealed on top. The lid is equipped with a temperature equalization structure and a stirring structure. The temperature equalization structure includes a hollow circulation pipe extending into the sterilization chamber. This invention, by setting up a surrounding hollow circulation pipe structure, and simultaneously circulating hot gas inside the hollow circulation pipe structure, directs heat along the inner wall of the sterilization chamber, through the bottom of the sterilization chamber, to the center of the sterilization chamber. Combined with the material's own flow disturbance, this reduces the temperature difference between the material on the tank sidewall and the center of the tank, improving the heating uniformity of the astaxanthin oil during the overall sterilization process. Since the highest horizontal section of the hollow circulation pipe corresponds to the maximum liquid level in the sterilization chamber, it can suppress the generation of vortices during stirring, reducing air entrainment.

Description

Technical Field

[0001] This invention relates to the field of health food production and processing technology, and more specifically, to a composite production and processing equipment for health foods. Background Technology

[0002] Astaxanthin is a natural and potent antioxidant with excellent antioxidant, anti-photoaging, and physiological health benefits. It is widely used in the health food industry. In the industrial production of astaxanthin health products, astaxanthin oil is usually used as an effective raw material carrier. The astaxanthin oil is quantitatively filled into soft capsules to produce astaxanthin oil soft capsule health products that can be taken orally. Before astaxanthin oil is packaged into soft capsule health products, the raw astaxanthin oil must be sterilized. The existing production process generally adopts the pasteurization method to sterilize astaxanthin oil: the astaxanthin oil is sealed and put into the sterilization tank, the astaxanthin oil in the tank is raised to a certain temperature and kept at a constant temperature for a specified time. Harmful microorganisms in the raw material are killed under low temperature and mild conditions, while preserving the activity of the effective components of astaxanthin to the greatest extent and avoiding the destruction of nutrients by high temperature.

[0003] Astaxanthin oil has a certain viscosity, resulting in relatively weak natural convection heat transfer. Furthermore, astaxanthin molecules are highly sensitive to oxygen and localized overheating. Current pasteurization methods typically rely on unidirectional heat conduction through the outer jacket of the sterilization tank, with heat gradually transferred from the tank wall inwards. During this process, the oil layer adhering to the inner wall of the tank heats up rapidly, making its temperature significantly higher than the oil temperature in the central area of ​​the tank. This results in a temperature difference of over 10°C between the wall surface and the central material within the sterilization chamber. Localized overheating of the wall surface can cause thermal decomposition of astaxanthin, reducing the effective content of the raw material and product quality. Conversely, the lower temperature in the central area of ​​the tank can lead to incomplete sterilization and excessive microbial levels. Therefore, a composite production and processing equipment for health foods is urgently needed to solve these problems. Summary of the Invention

[0004] This invention provides a composite production and processing equipment for health food. It utilizes a hollow circulation pipeline with directional circulation of hot gas for heat conduction, aided by a heat-conducting main shaft fitted around the outside of the pipeline. This ensures that the astaxanthin oil inside the sterilization chamber is heated sufficiently and evenly. Furthermore, during the stirring process, the high-level pipeline within the hollow circulation system suppresses vortex generation, assisting the astaxanthin oil in completing the pasteurization process. This solves the problems mentioned in the background art, namely: Astaxanthin oil has viscosity, which makes its convection capacity weak and it is sensitive to oxygen and overheating. Existing jacketed unidirectional heat conduction pasteurization results in a large temperature difference, which can easily cause astaxanthin oil to decompose, thus reducing its quality.

[0005] To achieve the above objectives, the composite production and processing equipment for the health food includes a main body, which includes a sterilization tank. The sterilization tank consists of a tank body and a cover sealed on its top. The inside of the tank body forms a sterilization chamber. A heating jacket is installed inside the tank body to heat and sterilize the astaxanthin oil in the sterilization chamber. The cover is equipped with a temperature equalization structure and a stirring structure. The temperature equalization structure includes a hollow circulation pipe extending into the sterilization chamber. Gas is transported in the hollow circulation pipe to assist in heating the interior of the sterilization chamber through heat conduction. The stirring structure rotates around its own axis within the sterilization chamber to stir the astaxanthin oil, and receives heat from the temperature equalization structure and transfers the heat to the astaxanthin oil. The temperature equalization structure is also used to form a physical barrier at the surface of the astaxanthin oil during stirring, suppressing the vortex generated by the stirring structure.

[0006] The above technical solution adopts a composite structure that combines a uniform temperature structure and a stirring structure to achieve uniform heat conduction to the sterilization chamber. At the same time, the pipeline layout forms liquid surface barriers and structural limits, which improves the uniformity and operational reliability of astaxanthin oil sterilization treatment.

[0007] Based on this, four hollow circulation pipes are provided. The hollow circulation pipes include an inlet section, a first horizontal section, a first vertical section, a second horizontal section, and a second vertical section connected in sequence. The inlet section enters the sterilization chamber vertically from the top of the tank and extends downward. The first horizontal section extends horizontally toward the inner wall of the tank. The first vertical section extends downward to the bottom of the inner cavity near the sterilization chamber. The second horizontal section extends horizontally toward the center of the tank. The second vertical section extends upward and extends out of the cover.

[0008] Furthermore, the temperature equalization structure also includes an air inlet ring installed on the surface of the cover, an air inlet chamber is opened inside the air inlet ring, a gas delivery pipe is connected to the end of the air inlet chamber, the four inlet sections are all connected to the air inlet chamber, an exhaust component is also fixedly installed on the cover, an exhaust chamber is formed inside the exhaust component, the four second vertical sections are connected to the exhaust chamber; and the four first horizontal sections are all located at the maximum liquid level of the sterilization chamber.

[0009] Multiple sets of hollow circulation pipelines are evenly arranged in the circumference. The hot gas is uniformly distributed and centrally discharged through the air inlet chamber and the air outlet chamber. The hollow circulation pipelines extend along the inner wall of the tank, the bottom of the tank, and to the center of the sterilization chamber to increase the heat distribution range.

[0010] In another technical solution, the stirring structure includes a main shaft and multiple stirring blades fixedly mounted on the surface of the main shaft. The main shaft rotates around its own axis, driving the stirring blades to stir the astaxanthin oil.

[0011] Preferably, the stirring structure further includes a drive structure for driving the main shaft to rotate. The drive structure includes a driven disc, a driving disc, and a hollow support disc. The hollow support disc is mounted on the surface of the cover and a drive motor is installed inside the hollow support disc. The bottom end of the driven disc is connected to the top of the main shaft, and the top of the driven disc is movably connected to the bottom of the exhaust component. The driving disc is movably connected to the top of the hollow support disc. The driving disc is fixedly connected to the output shaft of the drive motor, and the driving disc and the driven disc are connected by a synchronous belt drive to transmit the power of the drive motor to the main shaft.

[0012] The main shaft is sleeved on the outside of the four second vertical sections, transferring heat from the hollow circulation pipe to the main shaft; There are gaps between the multiple stirring blades and the hollow circulation pipeline.

[0013] This technical solution provides stable power for the mixing operation by setting up a drive structure. The transmission cooperation of the active disc, driven disc and synchronous belt drives the main shaft and stirring blades to rotate smoothly, so as to achieve full mixing of astaxanthin oil and enhance material convection. At the same time, the main shaft is sleeved on the outside of the hollow circulation pipeline, which can absorb the heat of the hot gas in the hollow circulation pipeline and conduct it to the stirring blades, further expanding the heat transfer range. The gap reserved between the stirring blades and the pipeline effectively reduces mutual interference during operation, improves the stability of the mixing structure and the temperature equalization structure, and can further optimize the temperature distribution in the sterilization chamber, reducing the problems of astaxanthin oxidation degradation and incomplete sterilization.

[0014] As a further improvement to this technical solution, multiple auxiliary support rods are fixedly installed at the bottom of the inner cavity of the sterilization chamber, and the tops of the multiple auxiliary support rods are connected to an auxiliary disk; the bottom of the main shaft rotates and fits against the surface of the auxiliary disk to provide bottom support for the main shaft; the hollow circulation pipeline can pass through the auxiliary disk and enter the interior of the main shaft.

[0015] The main shaft and multiple stirring blades are all made of food-grade heat-conducting material.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the composite production and processing equipment of this health food, a surrounding hollow circulation pipeline structure is set up. At the same time, hot gas is circulated inside the hollow circulation pipeline structure. The heat is directionally conducted along the inner wall of the sterilization chamber, the bottom of the sterilization chamber, and to the center of the sterilization chamber. Combined with the flow disturbance of the material itself, the temperature difference between the material on the side wall of the tank and the center of the tank can be reduced, and the heating uniformity of the astaxanthin oil in the overall sterilization process can be improved. 2. In the composite production and processing equipment for this health food, the main shaft is sleeved on the outside of the second vertical section of the circulation pipeline. It can absorb the heat of the hot gas in the hollow circulation pipeline and conduct it into the sterilization chamber, further improving the temperature uniformity in the sterilization chamber. In addition, since the highest horizontal section of the hollow circulation pipeline corresponds to the maximum liquid level in the sterilization chamber, it can suppress the generation of vortices during the stirring process and reduce air entrainment. At the same time, the main shaft can form a limiting support for the middle section of the circulation pipeline, improving the stability of the pipeline installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the sterilization tank in this invention; Figure 3 This is a schematic diagram of the internal structure of the sterilization chamber in this invention; Figure 4 This is a schematic diagram of the hollow circulation pipeline of the present invention; Figure 5 This is a diagram showing the airflow circulation state of the hollow circulation pipeline of the present invention. Figure 6 This is a diagram showing the state of astaxanthin oil after it enters the sterilization chamber in this invention. Figure 7 This is a schematic diagram of the disassembled structure of the sterilization tank in this invention; Figure 8 This is a top view of the sterilization tank in this invention; Figure 9 This is a schematic diagram of the stirring structure in this invention; Figure 10 This is a support diagram of the top of the spindle in this invention; Figure 11 This is a support diagram of the bottom of the spindle in this invention.

[0018] The meanings of the labels in the diagram are as follows: 1. Equipment body; 11. Sterilization tank; 12. Tank body; 13. Cover; 14. Sterilization chamber; 2. Temperature-equalizing structure; 21. Hollow circulation piping; 22. Inlet ring; 23. Exhaust components; 211. Inlet section; 212. First horizontal section; 213. First vertical section; 214. Second horizontal section; 215. Second vertical section; 221. Inlet chamber; 231. Exhaust chamber; 3. Stirring structure; 31. Main shaft; 32. Stirring blades; 33. Drive structure; 331. Driving disc; 332. Hollow support disc; 333. Driven disc; 34. Auxiliary support rod; 35. Auxiliary disc. Detailed Implementation

[0019] 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.

[0020] Astaxanthin oil has a certain viscosity, which makes its natural convection heat transfer capacity relatively weak. Astaxanthin is also highly sensitive to oxygen and local overheating. Existing pasteurization relies on the outer wall jacket of the sterilization tank 11 for unidirectional heat conduction. Heat is transferred from the tank wall to the inside, resulting in a large temperature difference between the tank wall and the central area of ​​the astaxanthin oil. This not only causes thermal decomposition of astaxanthin due to overheating of the wall surface, but also easily leads to incomplete sterilization and excessive microorganisms due to the low temperature in the center. In view of this, see Figures 1-3 As shown, the present invention provides a composite production and processing equipment for health food, including an equipment body 1. The equipment body 1 includes a sterilization tank 11, which is composed of a tank body 12 and a cover 13 sealed on its top. A sterilization chamber 14 is formed inside the tank body 12. A heating jacket is installed inside the tank body 12 to heat and sterilize the astaxanthin oil in the sterilization chamber 14. The cover 13 is equipped with a temperature equalization structure 2 and a stirring structure 3. The two structures work together to evenly distribute the heat field in the sterilization chamber 14. The temperature equalization structure 2 includes a hollow circulation pipe 21 extending into the sterilization chamber 14. Gas is transported in the hollow circulation pipe 21 to assist in heating the interior of the sterilization chamber 14 through heat conduction, thereby improving the uniformity of heating throughout the entire area. The stirring structure 3 rotates around its own axis in the sterilization chamber 14 to stir the astaxanthin oil, accelerate the heat exchange efficiency of the material, and receive heat from the temperature equalization structure 2 and transfer the heat to the astaxanthin oil, further enhancing the overall temperature equalization effect. The temperature equalization structure 2 is also used to form a physical barrier at the liquid surface of the astaxanthin oil during the stirring process, suppressing the vortex generated by the stirring structure 3 during stirring and slowing down the oxidation and deterioration of astaxanthin.

[0021] The aforementioned equipment body 1 is a pasteurization structure. The operation process is completed inside the sealed pasteurization tank 11. By introducing a heating medium into the outer jacket of the pasteurization tank 11, the external heat is transferred layer by layer to the material inside the tank through the heat conduction effect of the tank wall, so that the astaxanthin oil is heated to the process set temperature range and maintained at a constant temperature for a specific time (for astaxanthin oil pasteurization process, the standard temperature range for constant temperature control can be 62℃~65℃). Relying on the low temperature and long-term heat preservation mechanism, the inactivation treatment of harmful microorganisms inside the material is achieved.

[0022] Based on the above, such as Figure 3As shown, four hollow circulation pipes 21 are arranged in a circumferential array inside the sterilization chamber 14. (See reference...) Figure 4 The single hollow circulation pipe 21 is composed of an inlet section 211, a first horizontal section 212, a first vertical section 213, a second horizontal section 214, and a second vertical section 215 connected end to end in sequence. At the same time, the cover 13 is equipped with an air inlet ring 22 and an exhaust component 23. The air inlet ring 22 has an air inlet chamber 221 inside to centrally connect the air inlet ends of each pipe, and the exhaust component 23 has an exhaust chamber 231 inside to uniformly collect the air outlet ends of each pipe, thereby realizing a centralized air supply and centralized exhaust layout of multiple sets of pipes. Subsequently, the four hollow circulation pipes 21 have a multi-segment bending structure, located in the side wall area of ​​the sterilization chamber 14, the bottom area of ​​the inner cavity of the sterilization chamber 14, and the central area of ​​the sterilization chamber 14. The air inlet chamber 221 can evenly distribute the transported gas, so that the gas flow rate and flow state inside each set of hollow circulation pipes 21 are consistent. The exhaust chamber 231 can uniformly collect and discharge the gas after heat exchange.

[0023] Regarding the gas delivery, a gas delivery pipe (using existing technology) is connected to the end of the air inlet chamber 221, and a gas extraction device (using existing technology) is connected to the outside of the exhaust chamber 231. The gas delivery pipe is connected to an external constant temperature gas supply device, and the gas extraction device is connected to the inside of the exhaust chamber 231. The external gas supply device can continuously deliver gas at a constant temperature. During the operation of the gas extraction device, a stable airflow pressure difference is formed inside the exhaust chamber 231. The pressure difference drives the gas to form a directional circulation flow inside the hollow circulation pipe 21. Furthermore, in this embodiment, the temperature range of the delivered gas can be set to 62°C to 65°C. This temperature range is consistent with the temperature set in the astaxanthin oil pasteurization process, which allows the heat conduction of the pipeline to be matched with the sterilization temperature required by the material, maintaining the uniformity of temperature parameters during the sterilization process.

[0024] When implementing, such as Figure 5 As shown, external constant-temperature gas is introduced into the gas chamber 221 through the gas delivery pipe, and then splits into four inlet sections 211. The gas flows vertically down along the inlet section 211 and then flows through the first horizontal section 212, the first vertical section 213, the second horizontal section 214 and the second vertical section 215 in sequence, and finally gathers into the exhaust chamber 231. Under the action of the gas pump, the gas is discharged outward from the exhaust chamber 231. The gas flows through the pipeline channels of the side wall, bottom and multi-layer area of ​​the sterilization chamber 14. During the continuous flow of the airflow, it can help stabilize the temperature inside the sterilization chamber 14.

[0025] Furthermore, the stirring structure 3 inside the sterilization chamber 14 is disclosed, such as... Figure 6 and Figure 7As shown, the stirring structure 3 is mainly composed of a main shaft 31 and multiple sets of stirring blades 32. The stirring blades 32 are fixedly mounted on the outer wall of the main shaft 31. The main shaft 31 can rotate circumferentially, driving the stirring blades 32 to move synchronously, thereby realizing the overall stirring operation of the astaxanthin oil inside the sterilization chamber 14. Both the main shaft 31 and the stirring blades 32 are made of food-grade heat-conducting material (316L food-grade stainless steel can be used as the molding material, as 316L food-grade stainless steel has both heat conductivity, food processing adaptability and structural adaptability). At the same time, the stirring structure 3 is equipped with an independent drive structure 33 to provide power support, combined with Figure 8 and Figure 9 The drive structure 33 is composed of a driven disc 333, a driving disc 331, and a hollow support disc 332. The hollow support disc 332 is fixedly mounted on the surface of the cover 13, and the drive motor is assembled inside it. The driving disc 331 is fixedly connected to the output shaft of the drive motor. The bottom end of the driven disc 333 is fixedly connected to the top end of the main shaft 31. The top end of the driven disc 333 and the bottom end of the exhaust component 23 form a movable fit relationship. The driving disc 331 and the driven disc 333 are connected by a synchronous belt to establish a belt-pull transmission fit. During operation, the output torque of the drive motor drives the driving disc 331 to rotate, and the power is transmitted through the synchronous belt, driving the driven disc 333 and the main shaft 31 to rotate synchronously. It should be noted that this embodiment uses a belt-pull synchronous transmission structure for illustration. Under the same working conditions, this transmission fit structure can also be replaced by conventional transmission structures with the same power transmission function, such as gear transmission and chain transmission.

[0026] Back Figure 6 It can be seen that there is a certain gap between the multiple stirring blades 32 and the hollow circulation pipe 21, so that when the stirring blades 32 rotate in the circumferential direction, they remain spatially separated from the stationary hollow circulation pipe 21, so that the motion and stationary conditions of the two types of structures do not affect each other, and maintain the continuity of the operating state of each component.

[0027] In addition, such as Figure 8 The main shaft 31 is integrally sleeved on the outside of the four second vertical sections 215. During gas transport, the constant-temperature gas flowing inside the hollow circulation pipe 21 can transfer heat to the pipe wall of the second vertical section 215. The pipe wall of the second vertical section 215 then continuously transfers heat to the externally sleeved main shaft 31 through heat conduction. The heat can be further conducted along the main shaft 31 to the stirring blades 32, increasing the heat transfer range inside the sterilization chamber 14; simultaneously, such as Figure 10 As shown, the assembly form in which the main shaft 31 is sleeved on the outside of the second vertical section 215 can form a ring-shaped limiting constraint on the middle section of the second vertical section 215, increase the force support point in the middle of the hollow circulation pipe 21, and improve the structural stability of the overall pipe installation and layout.

[0028] In the above structure, the stirring structure 3 and the temperature equalization structure 2 work together. The main shaft 31 can receive the heat conducted by the hollow circulation pipe 21. Combined with the material convection effect brought about by mechanical stirring, it changes the static heat exchange state of astaxanthin oil, drives the stable power output of the structure 33, maintains the uniformity of the stirring speed, and the intermittent layout reduces the interaction interference between components. The cooperation of multiple structures can make uniform adjustment in the sterilization chamber 14 to meet the overall operation requirements of astaxanthin oil sterilization. During operation, the drive motor inside the hollow support disk 332 continuously outputs power, driving the active disk 331 to rotate at a constant speed. The active disk 331 drives the driven disk 333 to rotate synchronously through the synchronous belt. The driven disk 333, in conjunction with the main shaft 31 and the stirring blade 32, rotates smoothly in the circumferential direction inside the sterilization chamber 14, continuously agitating the astaxanthin oil. The constant temperature gas flows stably inside the hollow circulation pipe 21, and the heat from the pipe wall is continuously conducted to the outer main shaft 31 and the stirring blade 32. During the agitation process, the material and the heat-conducting components are in full contact, and heat exchange is completed synchronously.

[0029] Furthermore, astaxanthin exhibits high sensitivity to oxygen levels due to its physicochemical properties. Therefore, during sterilization, air is retained in the top space above the liquid surface inside the sterilization chamber 14. The oxygen in this air participates in the degradation reaction of astaxanthin. Based on this physicochemical characteristic, the industry generally adopts a method of maximizing filler volume to reduce the volume of the top space inside the sterilization chamber 14, thereby lowering the reaction rate of astaxanthin degradation. During sterilization, the material is heated, and the astaxanthin oil undergoes thermal expansion with temperature changes. The stirring action also causes dynamic volume fluctuations in the material. Therefore, a small amount of top space must still be retained inside the sterilization chamber 14 to accommodate the volume changes caused by thermal expansion and fluid movement. Figure 6 As shown, the four first horizontal sections 212 are all set at the position of the maximum liquid level in the sterilization chamber 14. When the astaxanthin oil is sterilized, the first horizontal sections 212 will be distributed laterally at the position of the material liquid surface. During the stirring operation, the surface material will form a ring-shaped flow with the stirring action. The horizontally arranged pipes can interfere with the flow direction of the surface material. The ring-shaped flow of the surface material is constrained, and it is difficult to form a concentrated vortex structure at the liquid surface position, so that the overall surface of the material remains stable. The contact range between the liquid surface and the air above tends to be stable, and the air components in the top space of the sterilization chamber 14 are not easily mixed into the liquid material with the material flow.

[0030] For information on the rotation of spindle 31, please refer to [link / reference]. Figure 11Several auxiliary support rods 34 are vertically fixedly mounted at the bottom of the sterilization chamber 14. The top ends of the auxiliary support rods 34 are fixedly connected to the auxiliary plate 35, so that the auxiliary plate 35 is horizontally mounted in the lower area of ​​the sterilization chamber 14. The bottom end of the main shaft 31 rotates and fits against the upper surface of the auxiliary plate 35. The auxiliary plate 35 has an adaptable through hole corresponding to the through position of the hollow circulation pipe 21. The hollow circulation pipe 21 can pass through the through hole, pass through the auxiliary plate 35 and extend into the interior of the main shaft 31, realizing the integrated assembly layout of the bottom support component and the pipe component. During operation, the auxiliary support rod 34 and the auxiliary disk 35 remain stationary and fixed. The main shaft 31 rotates continuously in the circumferential direction under the drive structure 33. The bottom end of the main shaft 31 slides smoothly along the upper surface of the auxiliary disk 35. The auxiliary disk 35 continuously provides bottom support and axial limit for the main shaft 31. The hollow circulation pipe 21 is fixedly inserted through the auxiliary disk 35 and extends into the main shaft 31. The stationary hollow circulation pipe 21 and the rotating main shaft 31 maintain relative coordination and movement to ensure the synchronous and stable operation of stirring and heat exchange.

[0031] Working principle: First, the equipment body 1 uses the sealed sterilization tank 11 as the working carrier, and uses the heating jacket on the outside of the tank 12 to provide the basic heat source. According to the pasteurization process requirements, the astaxanthin oil inside the sterilization chamber 14 is subjected to basic heating and constant temperature treatment to achieve the basic working conditions for microbial inactivation of the material. Based on the physicochemical properties of astaxanthin, the sterilization chamber 14 is filled with a high amount of material, leaving only a small amount of top space to accommodate the volume changes caused by the thermal expansion and stirring of the material. The gas supply component at the top of the cover 13 introduces constant temperature gas into the gas chamber 221 through the gas delivery pipe. The gas pump forms a stable pressure difference at the exhaust chamber 231, driving the constant temperature gas to be evenly distributed into the four hollow circulation pipes 21 and directionally circulated. The pipes are arranged along the side wall of the tank 12, the bottom of the tank 12 cavity, and to the center of the tank 12 cavity, and supplement auxiliary heat to the sterilization chamber 14 through heat conduction through the pipe wall. Subsequently, the drive motor inside the drive structure 33 outputs power, which, through the transmission cooperation of the active disk 331, the synchronous belt and the driven disk 333, drives the main shaft 31 and the stirring blade 32 to rotate continuously in the circumferential direction, continuously stirring the high viscosity astaxanthin oil, improving the material's own convection exchange efficiency. The food-grade heat-conducting material of the main shaft 31 is sleeved on the outside of the second vertical section 215, continuously receiving the heat conducted by the pipe wall and transferring it to the stirring blade 32, realizing the secondary dispersion and conduction of heat. In addition, the first horizontal section 212 of the pipeline at the maximum liquid level creates flow constraints on the liquid surface fluid during the stirring process, maintaining the overall stability of the liquid surface. The auxiliary support rod 34 and auxiliary disk 35 at the bottom of the sterilization chamber 14 support and limit the bottom of the main shaft 31, maintaining the structural stability of the stirring structure 3 during operation. The hollow circulation pipeline 21 and the stirring components maintain a reasonable assembly gap, and the structures cooperate with each other to make the astaxanthin oil more evenly heated in the sterilization chamber 14, thus completing the pasteurization process.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite production and processing equipment for health food, comprising an equipment body (1), wherein the equipment body (1) includes a sterilization tank (11), the sterilization tank (11) is composed of a tank body (12) and a cover (13) sealed on its top, the interior of the tank body (12) forms a sterilization chamber (14), and the interior of the tank body (12) is equipped with a heating jacket to heat and sterilize the astaxanthin oil in the sterilization chamber (14), characterized in that: The cover (13) is equipped with a temperature equalization structure (2) and a stirring structure (3). The temperature equalization structure (2) includes a hollow circulation pipe (21) extending into the sterilization chamber (14). Gas is transported in the hollow circulation pipe (21) to assist in heating the interior of the sterilization chamber (14) through heat conduction. The stirring structure (3) rotates around its own axis in the sterilization chamber (14) to stir the astaxanthin oil, and receives heat from the temperature equalization structure (2) and transfers the heat to the astaxanthin oil. The temperature equalization structure (2) is also used to form a physical barrier at the liquid surface of the astaxanthin oil during the stirring process to suppress the vortex generated by the stirring structure (3) during stirring.

2. The composite production and processing equipment for health food according to claim 1, characterized in that: The hollow circulation pipe (21) is provided in four sections, and the hollow circulation pipe (21) includes an inlet section (211), a first horizontal section (212), a first vertical section (213), a second horizontal section (214), and a second vertical section (215) connected in sequence. The inlet section (211) enters the sterilization chamber (14) vertically from the top of the tank (12) and extends downward. The first horizontal section (212) extends horizontally toward the inner wall of the tank (12). The first vertical section (213) extends downward to the bottom of the inner cavity near the sterilization chamber (14). The second horizontal section (214) extends horizontally toward the center of the tank (12). The second vertical section (215) extends upward and extends out of the cover (13).

3. The composite production and processing equipment for health food according to claim 2, characterized in that: The temperature equalization structure (2) also includes an air inlet ring (22) installed on the surface of the cover (13). An air inlet chamber (221) is opened inside the air inlet ring (22). A gas delivery pipe is connected to the end of the air inlet chamber (221). All four inlet sections (211) are connected to the air inlet chamber (221). An exhaust component (23) is also fixedly installed on the cover (13). An exhaust chamber (231) is formed inside the exhaust component (23), and the four second vertical sections (215) are connected to the exhaust chamber (231).

4. The composite production and processing equipment for health food according to claim 2, characterized in that: All four first horizontal segments (212) are located at the maximum liquid level of the sterilization chamber (14).

5. The composite production and processing equipment for health food according to claim 3, characterized in that: The stirring structure (3) includes a main shaft (31) and multiple stirring blades (32) fixedly installed on the surface of the main shaft (31). The main shaft (31) rotates around its own axis, driving the stirring blades (32) to stir the astaxanthin oil.

6. The composite production and processing equipment for health food according to claim 5, characterized in that: The stirring structure (3) further includes a drive structure (33) for driving the main shaft (31) to rotate. The drive structure (33) includes a driven disk (333), a driving disk (331), and a hollow support disk (332). The hollow support disk (332) is mounted on the surface of the cover (13). A drive motor is mounted inside the hollow support disk (332). The bottom end of the driven disk (333) is connected to the top of the main shaft (31). The top of the driven disk (333) is movably connected to the bottom of the exhaust component (23). The driving disk (331) is movably connected to the top of the hollow support disk (332). The driving disk (331) is fixedly connected to the output shaft of the drive motor. The driving disk (331) and the driven disk (333) are connected by a synchronous belt drive to transmit the power of the drive motor to the main shaft (31).

7. The composite production and processing equipment for health food according to claim 5, characterized in that: The main shaft (31) is sleeved on the outside of the four second vertical sections (215) to transfer heat from the hollow circulation pipe (21) to the main shaft (31).

8. The composite production and processing equipment for health food according to claim 5, characterized in that: There is a gap between the plurality of the stirring blades (32) and the hollow circulation pipe (21).

9. The composite production and processing equipment for health food according to claim 5, characterized in that: Multiple auxiliary support rods (34) are fixedly installed at the bottom of the inner cavity of the sterilization chamber (14), and the top of the multiple auxiliary support rods (34) are connected to an auxiliary disk (35); the bottom of the main shaft (31) rotates and fits against the surface of the auxiliary disk (35) to provide bottom support for the main shaft (31); the hollow circulation pipe (21) can pass through the auxiliary disk (35) and enter the interior of the main shaft (31).

10. The composite production and processing equipment for health food according to claim 5, characterized in that: The main shaft (31) and multiple stirring blades (32) are all made of food-grade heat-conducting material.

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