Full-automatic production line for producing dairy products

Abstract

The invention discloses a full-automatic production line for producing dairy products, and relates to the technical field of dairy product production, the full-automatic production line comprises a filtering mechanism, a preheating tank, a homogenizer, a sterilization tank, a fermentation tank and a refrigeration tank, the filtering mechanism comprises a first filtering tank, a liquid inlet pipe, a second filtering tank and a liquid outlet pipe, compared with an existing full-automatic dairy product production line, the full-automatic dairy product production line has the advantages that the buffer tank is arranged, liquid inlet pressure fluctuation is sensed in real time through the sensing module in the buffer tank, a dynamic expansion space is actively formed, instantaneous impact energy is effectively absorbed, and the stability of the full-automatic dairy product production line is improved. The raw milk entering the filtering mechanism is always kept in a stable flow state, and the temperature measuring element and the heating element are arranged in the stirring assembly, so that the problem that the temperature is reduced in the long-distance steam conveying process is solved, the surface temperature of the whole stirring assembly is kept consistent, and therefore it is guaranteed that milk in all areas in the sterilization tank can reach the specified sterilization temperature.

Description

Technical Field

[0001] This invention relates to the field of dairy product manufacturing technology, specifically a fully automated production line for dairy products. Background Technology

[0002] With the rapid development of the dairy industry, the market has placed higher demands on the quality, safety and production efficiency of dairy products. Traditional dairy production relies heavily on manual operation or semi-automatic equipment, which results in problems such as low production efficiency, difficulty in hygiene control and unstable product quality. In order to solve these problems, fully automated dairy production lines have emerged in recent years. Existing fully automated dairy production lines typically include processes such as filtration, preheating, homogenization, sterilization, fermentation and cooling. These processes are connected in series through pipelines to form a continuous and closed material transport path.

[0003] Currently, fully automated dairy production lines generally adopt a dual-filter parallel structure, switching between inlet and outlet valves to achieve one in use and one on standby or alternating operation. While this design can meet the basic switching requirements for filter cleaning and filter element replacement, in actual continuous production, due to the extremely short valve action time, the momentum of the high-speed flowing raw milk in the inlet pipeline changes drastically the moment the valve closes. This can easily damage the filter layer inside the filter tank, and may even cause some of the intercepted impurities to be resuspended and penetrate the filter layer. Finally, when switching filter tanks, current fully automated dairy production lines have difficulty quickly recovering and reusing the raw milk remaining in the filter tank to be maintained. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to avoid damage to the filter layer in the filtration system due to pressure fluctuations when raw milk enters the filtration mechanism. To this end, a fully automated production line for dairy products is provided.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fully automated production line for producing dairy products, comprising a filtration mechanism, a preheating tank, a homogenizer, a sterilization tank, a fermentation tank, and a refrigeration tank connected in sequence. The filtration mechanism pre-treats the raw milk to remove impurities; the preheating tank preheats the dairy products; the homogenizer homogenizes and refines the fat globules in the dairy products; the sterilization tank sterilizes the dairy products by heating; the fermentation tank ferments specific dairy products; and the refrigeration tank cools the finished product. After the finished dairy product is cooled, it is packaged using equipment such as a filling machine. The filtration mechanism includes a first filter tank, an inlet pipe, a second filter tank, and an outlet pipe. The inlet end of the first filter tank and the outlet end of the second filter tank are connected in series. The inlet ends of both filter tanks are connected to the inlet pipes via inlet valves, and the outlet ends of both the first and second filter tanks are connected to the outlet pipes via outlet valves. During operation, by controlling the opening and closing of the two inlet valves and two outlet valves, the operator can freely select either the first or second filter tank to filter the raw milk (the method of changing the flow of the raw milk is a conventional technique in this field, and the specific structure and implementation method are not described in detail). Compared to current fully automated dairy production lines, this invention includes a buffer tank in its filtration mechanism. One end of the buffer tank is connected to the inlet pipe via a guide pipe, and the other end of the buffer tank is connected to the first and second filter tanks via a first and a second drain pipe, respectively. In this invention, both the first and second drain pipes are equipped with on / off valves. During the flow of the raw milk within the filtration mechanism, both valves are closed. The buffer tank contains a movable seat and a linear drive. The movable seat is connected to the working end of the linear drive. A sensing module is located at the end of the movable seat near the guide pipe. When the raw milk enters the inlet pipe, pressure fluctuations and instantaneous flow surges inevitably occur due to the operating characteristics of the upstream pumping equipment and changes in the pipeline system resistance. At this time, the guide pipe introduces a portion of the raw milk into the buffer tank, directly acting on the sensing module at the end of the movable seat. The sensing module then captures the raw milk flow in real time. When pressure changes occur in the milk entering the inlet pipe, and an excessively large instantaneous pressure or violent fluctuation is detected, the movable seat is driven by a linear drive to move away from the guide pipe, forming a temporary expansion space in the buffer tank to absorb the impact energy. This prevents damage to the filter layer of the first and second filter tanks due to excessive load during operation. Finally, this invention can quickly transfer the raw milk retained inside the filter tank to be cleaned, and it will not be contaminated by the external environment during the transfer process. For example, when cleaning the first filter tank, the operator only needs to open the on / off valve on the first drain pipe. At this time, the raw milk retained in the first filter tank will flow directly into the buffer tank, making it convenient for subsequent cleaning of the first filter tank.

[0006] Furthermore, the filtration mechanism also includes a liquid pump. One end of the liquid pump is connected to the outlet pipe and the buffer tank via a three-way pipe, and the other end of the liquid pump is connected to the preheating tank. A sealing valve is installed at the end of the three-way pipe near both the outlet pipe and the buffer tank. Under normal filtration conditions, the sealing valve at the end of the three-way pipe near the outlet pipe is open (the sealing valve at the end of the three-way pipe near the buffer tank is closed). The liquid pump transports the raw milk flowing from the outlet pipe into the preheating tank. When the operator needs to use the raw milk stored in the buffer tank, they only need to open the sealing valve at the end of the three-way pipe near the buffer tank and then close the sealing valve at the end of the three-way pipe near the outlet pipe. At this time, the liquid pump can transport the raw milk stored in the buffer tank into the preheating tank.

[0007] Furthermore, the movable seat is provided with a buffer cavity, and the sensing module includes a movable plate. The movable plate is located at one end of the buffer cavity near the guide pipe. The movable plate is connected to the buffer cavity through a compression spring. A piezoelectric element is provided at the end of the movable plate near the compression spring. During normal filtration of the raw milk, when the raw milk enters the filtration mechanism, some of the raw milk enters the buffer tank from the guide pipe. At this time, the raw milk will impact the movable plate, causing the compression spring to deform. The piezoelectric element is subjected to pressure and generates an electrical signal. This signal is transmitted to the controller in the linear drive. Based on the signal strength generated by the piezoelectric element, the linear drive controls the movable seat to move to adjust the pressure of the raw milk entering the filtration mechanism.

[0008] Furthermore, the sensing module also includes an electromagnet, which is disposed at the end of the buffer chamber away from the guide pipe. The end of the movable plate near the electromagnet is magnetic. When the filtration mechanism of the present invention needs to switch from the first filter tank to the second filter tank, the electromagnet generates a controllable gradient magnetic field, which generates a gradual attraction force on the movable plate, so that the movable plate moves smoothly away from the guide pipe. During this process, the flow rate of the raw milk entering the guide pipe and the liquid inlet pipe will decrease gradually, avoiding the sudden change in flow rate caused by the sudden closure of the liquid inlet valve at the liquid inlet end of the first filter tank, and preventing the filter layer in the second filter tank from being disturbed and the filter cake structure from being damaged.

[0009] Furthermore, a first fixed seat is provided on the inner wall of the first filter tank, and an mounting seat is provided inside the first fixed seat. A filter cartridge is provided inside the mounting seat. A sealing plate is provided on the side of the mounting seat near the liquid inlet end of the first filter tank. A position adjustment component is provided on the outer side of the first filter tank. The position adjustment component is connected to the mounting seat. The second filter tank has the same structure as the first filter tank. In the first filter tank of the present invention, when in use, the sealing plate is not in contact with the liquid inlet end of the first filter tank. At this time, the raw milk will enter from the liquid inlet end of the first filter tank, pass through the filter cartridge, and finally be discharged from the liquid outlet end of the first filter tank. When the first filter tank is not in use, the mounting seat is driven to rotate by the position adjustment component until the sealing plate is in contact with the liquid inlet end of the first filter tank. At this time, a double isolation will be formed between the first filter tank and the liquid inlet pipe to prevent the liquid inlet valve of the first filter tank from working for a long time and thus causing leakage, which would cause the raw milk to backflow into the first filter tank to be maintained.

[0010] Furthermore, the position adjustment assembly includes a first rotary drive and a second fixed base. The first rotary drive is disposed on the second fixed base and is connected to the mounting base via a gear assembly. The gear assembly includes a first gear and a second gear. The first gear is connected to the first rotary drive, and the second gear is disposed on the outside of the mounting base. The first gear and the second gear mesh. If the operator needs to change the position of the sealing plate, he only needs to turn on the first rotary drive. The first rotary drive can drive the first gear to rotate, thereby driving the second gear, the mounting base, and the sealing plate to rotate. The sealing plate serves to isolate the first filter tank from the inlet pipe.

[0011] Furthermore, the sterilization tank is equipped with a first support frame, a stirring assembly, and a second support frame. The stirring assembly is positioned between the first and second support frames. One end of the stirring assembly is connected to an exhaust pipe, and the other end is connected to an air inlet pipe. A second rotary drive is provided on the outside of the sterilization tank and is connected to the stirring assembly. During sterilization, high-temperature steam enters the stirring assembly through the air inlet pipe to heat the stirring assembly. Simultaneously, the second rotary drive drives the stirring assembly to rotate, stirring the milk material inside the sterilization tank. The steam after heat exchange is discharged through the exhaust pipe at the other end of the stirring assembly. This technical solution achieves heat transfer while stirring, avoiding local overheating or insufficient heating.

[0012] Furthermore, an exhaust chamber is provided within the first support frame, and the exhaust pipe is connected to the exhaust chamber. The stirring assembly includes a main rod and support rods. One end of the main rod has a through hole and is located within the exhaust chamber, while the other end of the main rod is located within the air inlet pipe. Several support rods are provided, all mounted on the main rod and connected end-to-end. In this invention, both ends of the main rod are hollow structures, and the several support rods are also hollow structures. High-temperature steam enters the interior of the main rod from the air inlet pipe and then flows along the circulation path formed by the connection of the several support rods. After circulating within the several support rods, the steam enters the exhaust chamber through the through hole at the end of the main rod and is finally discharged through the exhaust pipe. Through the above technical solution, this invention extends the residence time of steam within the stirring assembly, allowing heat to be released more fully into the emulsion. Simultaneously, the several support rods can shear and mix the emulsion during rotation, ensuring uniform sterilization temperature.

[0013] Furthermore, each support rod is equipped with a temperature sensing element at one end near the main rod, and several heating elements are installed on the inner wall of each support rod. When the temperature sensing element detects that the steam temperature is higher than the set sterilization temperature, the input of high-temperature steam is stopped. When the temperature sensing element detects that the steam temperature is lower than the set sterilization temperature, the controller automatically activates the heating elements on the inner wall of the support rod for auxiliary heating to compensate for heat loss. This design solves the problem of temperature drop during long-distance steam transportation, keeps the surface temperature of the entire mixing assembly consistent, and ensures that the milk in each area of ​​the sterilization tank can reach the specified sterilization temperature.

[0014] Compared with existing technologies, the advantages of this invention are as follows: Compared with current fully automated dairy production lines, this invention incorporates a buffer tank within the filtration mechanism. Through a sensing module within the buffer tank, it senses in real-time fluctuations in the inlet pressure and actively creates a dynamic expansion space, effectively absorbing instantaneous impact energy. This ensures that the raw milk entering the filtration mechanism maintains a stable flow, completely eliminating phenomena such as filter layer penetration and filter material fatigue damage caused by sudden pressure changes and water hammer impacts in traditional filtration systems. Furthermore, during the switching process between the first and second filtration tanks, the sensing module enables a smooth transition curve in the raw milk flow rate within the inlet pipe, preventing filter layer disturbance and filter cake structure damage caused by pressure changes during the switching process. Additionally, this invention allows for the rapid transfer of raw milk retained in the filter tank requiring maintenance to the buffer tank for temporary storage within a completely closed pipeline system. The entire process completely eliminates contact with outside air, thoroughly avoiding the risk of microbial contamination. The raw milk in the temporary buffer tank can be redistributed to downstream processes as needed, achieving complete recycling and significantly reducing production losses. It also eliminates the environmental burden of waste milk disposal. Furthermore, the invention incorporates a stirring assembly within the sterilization tank. High-temperature steam circulates along the connecting channels of the support rods within the stirring assembly, significantly extending the steam residence time and ensuring sufficient heat release. Simultaneously, the rotation of the stirring assembly generates strong shearing and mixing action on the milk, rapidly transferring heat to all areas of the tank via convection. Finally, the invention includes temperature sensing and heating elements within each support rod, solving the problem of temperature drop during long-distance steam transport and ensuring a consistent surface temperature across the entire stirring assembly. This guarantees that the milk in all areas of the sterilization tank reaches the specified sterilization temperature. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a first-view schematic diagram of the filtration mechanism of the present invention; Figure 3 This is a second-view schematic diagram of the filtration mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the buffer tank of the present invention; Figure 5 This is a schematic diagram of the sensing module structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the first filter tank of the present invention; Figure 7 This is a schematic diagram of the internal structure of the sterilization tank of the present invention; Figure 8 This is a schematic diagram of the stirring assembly structure of the present invention.

[0016] In the diagram: 1. Filtration mechanism; 11. First filter tank; 111. First drain pipe; 112. Filter cartridge; 113. First fixed base; 114. Mounting base; 115. Sealing plate; 116. First rotary drive component; 117. Second fixed base; 12. Inlet valve; 13. Inlet pipe; 14. Buffer tank; 141. Movable base; 1411. Movable plate; 1412. Piezoelectric element; 1413. Buffer chamber; 1414. Electromagnet; 42. Linear drive component; 15. Second filter tank; 151. Second drain pipe; 16. Discharge valve; 17. Discharge pipe; 18. T-connector; 19. Liquid pump; 2. Preheating tank; 3. Homogenizer; 4. Sterilization tank; 41. First support frame; 42. Second rotary drive component; 43. Exhaust pipe; 44. Stirring assembly; 441. Main rod; 442. Support rod; 45. Air inlet pipe; 46. Second support frame; 5. Fermentation tank; 6. Refrigeration tank. Detailed Implementation

[0017] 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.

[0018] Example: Figures 1-8As shown, this invention provides a technical solution: a fully automated production line for dairy products. The production line comprises a filtration mechanism 1, a preheating tank 2, a homogenizer 3, a sterilization tank 4, a fermentation tank 5, and a refrigeration tank 6 connected in sequence. The filtration mechanism 1 pre-treats the raw milk to remove impurities; the preheating tank 2 preheats the dairy products; the homogenizer 3 homogenizes and refines the fat globules in the dairy products; the sterilization tank 4 heats and sterilizes the dairy products; the fermentation tank 5 ferments specific dairy products; and the refrigeration tank 6 cools the finished product. After cooling, the finished dairy product is packaged using equipment such as a filling machine. The filtration mechanism 1 includes a first filter tank 11, an inlet pipe 13, a second filter tank 15, and an outlet pipe 17. The inlet end of the first filter tank 11 and the outlet end of the second filter tank 15 are connected in series. The inlet ends of tanks 15 are connected to inlet pipes 13 via inlet valves 12, and the outlet ends of the first filter tank 11 and the second filter tank 15 are connected to outlet pipes 17 via outlet valves 16. During operation, by controlling the opening and closing of the two inlet valves 12 and the two outlet valves 16, the operator can freely choose to filter the raw milk using either the first filter tank 11 or the second filter tank 15 (the method of changing the flow of the raw milk is a conventional technique in this field, and the specific structure and implementation method are not described in detail). Compared to the current fully automated dairy production line's filtration mechanism 1, this invention includes a buffer tank 14. One end of the buffer tank 14 is connected to the inlet pipe 13 via a guide pipe, and the other end of the buffer tank 14 is connected to the first drain pipe 111 and the second drain pipe 17. 51 is connected to the first filter tank 11 and the second filter tank 15 respectively. In this invention, both the first drain pipe 111 and the second drain pipe 151 are equipped with on / off valves. During the flow of raw milk in the filter mechanism 1, the on / off valves on the first drain pipe 111 and the second drain pipe 151 are in the closed state. The buffer tank 14 is equipped with a movable seat 141 and a linear drive 142. The movable seat 141 is connected to the working end of the linear drive 142. A sensing module is provided at the end of the movable seat 141 near the guide pipe. When the raw milk enters the inlet pipe 13, due to the working characteristics of the upstream pumping equipment and the resistance changes of the pipeline system, pressure fluctuations and instantaneous flow impacts will inevitably occur in the inlet pipe 13. At this time, the guide pipe will divert part of the raw milk. A buffer tank 14 is introduced, directly acting on the sensing module at the end of the movable seat 141. The sensing module captures real-time pressure changes as the raw milk enters the inlet pipe 13. When excessive instantaneous pressure or violent fluctuations are detected, the linear drive 142 drives the movable seat 141 to move away from the guide pipe, creating a temporary expansion space within the buffer tank 14 to absorb impact energy. This prevents damage to the filter layers of the first filter tank 11 and the second filter tank 15 due to excessive load during operation. Finally, this invention can quickly transfer the raw milk retained inside the filter tanks to be cleaned, without being contaminated by the external environment during the transfer process. For example, when cleaning the first filter tank 11, the operator only needs to open the on / off valve on the first drain pipe 111.At this point, the raw milk remaining in the first filter tank 11 will flow directly into the buffer tank 14 to facilitate subsequent cleaning of the first filter tank 11 by staff.

[0019] like Figures 2-4 As shown, the filtration mechanism 1 also includes a liquid pump 19. One end of the liquid pump 19 is connected to the outlet pipe 17 and the buffer tank 14 via a three-way pipe 18, and the other end of the liquid pump 19 is connected to the preheating tank 2. The three-way pipe 18 is equipped with a sealing valve at the end near the outlet pipe 17 and the buffer tank 14. Under normal filtration conditions, the sealing valve at the end of the three-way pipe 18 near the outlet pipe 17 is in the open state (the sealing valve at the end of the three-way pipe 18 near the buffer tank 14 is in the closed state). The liquid pump 19 transports the raw milk flowing out of the outlet pipe 17 to the preheating tank 2. When the staff needs to use the raw milk stored in the buffer tank 14, they only need to open the sealing valve at the end of the three-way pipe 18 near the buffer tank 14 and then close the sealing valve at the end of the three-way pipe 18 near the outlet pipe 17. At this time, the liquid pump 19 can transport the raw milk stored in the buffer tank 14 to the preheating tank 2.

[0020] like Figures 2-4 As shown, a buffer chamber 1413 is provided on the movable seat 141. The sensing module includes a movable plate 1411, which is located at one end of the buffer chamber 1413 near the guide tube. The movable plate 1411 is connected to the buffer chamber 1413 via a compression spring. A piezoelectric element 1412 is provided at one end of the movable plate 1411 near the compression spring. During normal filtration of the raw milk, when the raw milk enters the filtration mechanism 1, some of the raw milk enters the buffer tank 14 from the guide tube. At this time, the raw milk will impact the movable plate 1411, causing the compression spring to deform. The piezoelectric element 1412 is subjected to pressure and generates an electrical signal. This signal is transmitted to the controller in the linear drive 142. Based on the signal strength generated by the piezoelectric element 1412, the linear drive 142 controls the movable seat 141 to move, thereby adjusting the pressure of the raw milk entering the filtration mechanism 1.

[0021] like Figures 4-5 As shown, the sensing module also includes an electromagnet 1414, which is disposed at the end of the buffer chamber 1413 away from the guide pipe. The end of the movable plate 1411 near the electromagnet 1414 is magnetic. When the filtration mechanism 1 of the present invention needs to switch from the first filter tank 11 to the second filter tank 15, the electromagnet 1414 generates a controllable gradient magnetic field, which generates a gradual attraction force on the movable plate 1411, so that the movable plate 1411 moves smoothly away from the guide pipe. During this process, the flow rate of the raw milk entering the guide pipe and the liquid inlet pipe 13 will decrease gradually, avoiding the sudden change in flow rate caused by the sudden closure of the liquid inlet valve 12 at the liquid inlet end of the first filter tank 11, and preventing the filter layer in the second filter tank 15 from being disturbed and the filter cake structure from being damaged.

[0022] like Figure 6 As shown, a first fixing seat 113 is provided on the inner wall of the first filter tank 11, and a mounting seat 114 is provided inside the first fixing seat 113. A filter cartridge 112 is provided inside the mounting seat 114. A sealing plate 115 is provided on the side of the mounting seat 114 near the liquid inlet end of the first filter tank 11. A position adjustment component is provided on the outer side of the first filter tank 11 and is connected to the mounting seat 114. The second filter tank 15 has the same structure as the first filter tank 11. In this invention, when the first filter tank 11 is in use, the sealing plate 115 is not aligned with the liquid inlet end of the first filter tank 11. When the first filter tank 11 is in contact with the inlet end, the raw milk will enter from the inlet end of the first filter tank 11, pass through the filter cylinder 112, and finally exit from the outlet end of the first filter tank 11. When the first filter tank 11 is not in use, the mounting base 114 is rotated by the position adjustment component until the sealing plate 115 is in contact with the inlet end of the first filter tank 11. At this time, a double isolation will be formed between the first filter tank 11 and the inlet pipe 13 to prevent the inlet valve 12 at the inlet end of the first filter tank 11 from working for a long time and causing leakage, which would cause the raw milk to backflow into the first filter tank 11 that needs maintenance.

[0023] like Figure 6 As shown, the position adjustment assembly includes a first rotary drive 116 and a second fixed base 117. The first rotary drive 116 is mounted on the second fixed base 117 and is connected to the mounting base 114 via a gear assembly. The gear assembly includes a first gear and a second gear. The first gear is connected to the first rotary drive 116, and the second gear is located on the outside of the mounting base 114. The first gear and the second gear mesh. If the operator needs to change the position of the sealing plate 115, they only need to turn on the first rotary drive 116. The first rotary drive 116 can drive the first gear to rotate, thereby driving the second gear, the mounting base 114, and the sealing plate 115 to rotate. The sealing plate 115 serves to isolate the first filter tank 11 from the inlet pipe 13.

[0024] like Figures 7-8As shown, the sterilization tank 4 is equipped with a first support frame 41, a stirring assembly 44, and a second support frame 46. The stirring assembly 44 is located between the first support frame 41 and the second support frame 46. One end of the stirring assembly 44 is connected to the exhaust pipe 43, and the other end of the stirring assembly 44 is connected to the air inlet pipe 45. A second rotary drive 42 is provided on the outside of the sterilization tank 4 and is connected to the stirring assembly 44. During the sterilization operation, high-temperature steam enters the stirring assembly 44 through the air inlet pipe 45 to heat the stirring assembly 44. At the same time, the second rotary drive 42 drives the stirring assembly 44 to rotate, stirring the milk in the sterilization tank 4. The steam after heat exchange is discharged through the other end of the stirring assembly 44 through the exhaust pipe 43. The above technical solution realizes heat transfer while stirring, avoiding local overheating or insufficient heating.

[0025] like Figures 7-8 As shown, the first support frame 41 is provided with an exhaust chamber, and the exhaust pipe 43 is connected to the exhaust chamber. The stirring assembly 44 includes a main rod 441 and support rods 442. One end of the main rod 441 is provided with a through hole and is located in the exhaust chamber. The other end of the main rod 441 is located in the air inlet pipe 45. Several support rods 442 are provided, and the several support rods 442 are all set on the main rod 441 and connected end to end. In this invention, the main rod 441 has hollow structures at both ends, and the several support rods 442 are all hollow structures. High-temperature steam enters from the air inlet pipe 45. The steam enters the main rod 441 and then flows along the circulation path formed by connecting several support rods 442 end to end. After circulating within the support rods 442, the steam enters the exhaust chamber through the through hole at the end of the main rod 441 and is finally discharged through the exhaust pipe 43. Through the above technical solution, the present invention extends the residence time of steam in the stirring assembly 44, allowing heat to be released more fully into the emulsion. At the same time, the several support rods 442 can shear and mix the emulsion during rotation, ensuring uniform sterilization temperature.

[0026] like Figures 7-8 As shown, each support rod 442 has a temperature sensing element installed at one end near the main rod 441, and several heating elements are installed on the inner wall of each support rod 442. When the temperature sensing element detects that the steam temperature is higher than the set sterilization temperature, the input of high-temperature steam is stopped. When the temperature sensing element detects that the steam temperature is lower than the set sterilization temperature, the controller automatically starts the heating elements on the inner wall of the support rod 442 for auxiliary heating to compensate for heat loss. This design solves the problem of temperature drop during long-distance steam transportation, keeps the surface temperature of the entire stirring assembly 44 consistent, and ensures that the milk in each area of ​​the sterilization tank 4 can reach the specified sterilization temperature.

[0027] The working principle of this invention is as follows: During operation, raw milk is conveyed from the inlet pipe 13 into the filter mechanism 1. The filter mechanism 1 performs pre-filtration on the raw milk. A sensing module inside the buffer tank 14 continuously monitors pressure changes as the raw milk enters the inlet pipe 13. When excessive instantaneous pressure or severe fluctuations are detected, the linear drive component 142 drives the movable seat 141 to move away from the guide pipe, creating a temporary expansion space within the buffer tank 14 to absorb impact energy and prevent the filter mechanism 1 from overloading during operation. This process can lead to damage to the filter layer. After the raw milk pretreatment is completed, the raw milk is sent to the preheating tank 2 by the liquid pump 19. The preheating tank 2 preheats the emulsion. Then, the emulsion enters the homogenizer 3, sterilization tank 4, fermentation tank 5 and refrigeration tank 6 in sequence. The homogenizer 3 makes the fat globules of the emulsion uniform and fine. The sterilization tank 4 heats and sterilizes the emulsion. The fermentation tank 5 ferments specific dairy products. The refrigeration tank 6 cools the emulsion. After the finished emulsion is cooled, it is packaged by filling machine and other equipment.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 fully automated production line for producing dairy products, comprising a filtration unit (1), a preheating tank (2), a homogenizer (3), a sterilization tank (4), a fermentation tank (5), and a refrigeration tank (6), characterized in that: The filtration mechanism (1) includes a first filter tank (11), an inlet pipe (13), a buffer tank (14), a second filter tank (15), and an outlet pipe (17). The inlet ends of the first filter tank (11) and the second filter tank (15) are both connected to the inlet pipe (13) via inlet valves (12). The outlet ends of the first filter tank (11) and the second filter tank (15) are both connected to the outlet pipe (17) via outlet valves (16). The buffer tank (14) has one... One end is connected to the inlet pipe (13) through the guide pipe, and the other end of the buffer tank (14) is connected to the first filter tank (11) and the second filter tank (15) through the first drain pipe (111) and the second drain pipe (151) respectively. The buffer tank (14) is provided with a movable seat (141) and a linear drive (142) inside. The movable seat (141) is connected to the working end of the linear drive (142). A sensing module is provided at the end of the movable seat (141) near the guide pipe.

2. The fully automated production line for producing dairy products according to claim 1, characterized in that: The filtration mechanism (1) also includes a liquid pump (19), one end of which is connected to the outlet pipe (17) and the buffer tank (14) via a three-way pipe (18), and the other end of which is connected to the preheating tank (2). The three-way pipe (18) is equipped with a sealing valve at the end near the outlet pipe (17) and the buffer tank (14).

3. The fully automated production line for dairy products according to claim 1, characterized in that: The movable seat (141) is provided with a buffer cavity (1413). The sensing module includes a movable plate (1411). The movable plate (1411) is located at one end of the buffer cavity (1413) near the guide tube. The movable plate (1411) is connected to the buffer cavity (1413) by a compression spring. A piezoelectric sheet (1412) is provided at one end of the movable plate (1411) near the compression spring.

4. The fully automated production line for producing dairy products according to claim 3, characterized in that: The sensing module also includes an electromagnet (1414), which is disposed at the end of the buffer cavity (1413) away from the guide tube, and the end of the movable plate (1411) near the electromagnet (1414) is magnetic.

5. The fully automated production line for producing dairy products according to claim 1, characterized in that: A first fixing seat (113) is provided on the inner wall of the first filter tank (11). An installation seat (114) is provided inside the first fixing seat (113). A filter cartridge (112) is provided inside the installation seat (114). A sealing plate (115) is provided on the side of the installation seat (114) near the liquid inlet end of the first filter tank (11). A position adjustment component is provided on the outside of the first filter tank (11). The position adjustment component is connected to the installation seat (114). The structure of the second filter tank (15) is exactly the same as that of the first filter tank (11).

6. The fully automated production line for producing dairy products according to claim 5, characterized in that: The position adjustment assembly includes a first rotary drive (116) and a second fixed base (117). The first rotary drive (116) is disposed on the second fixed base (117) and is connected to the mounting base (114) via a gear assembly.

7. The fully automated production line for producing dairy products according to claim 1, characterized in that: The sterilization tank (4) is provided with a first support frame (41), a stirring assembly (44) and a second support frame (46). The stirring assembly (44) is located between the first support frame (41) and the second support frame (46). One end of the stirring assembly (44) is connected to the exhaust pipe (43) and the other end of the stirring assembly (44) is connected to the air inlet pipe (45). A second rotary drive (42) is provided on the outside of the sterilization tank (4) and is connected to the stirring assembly (44).

8. The fully automated production line for producing dairy products according to claim 7, characterized in that: The first support frame (41) is provided with an exhaust chamber, and the exhaust pipe (43) is connected to the exhaust chamber. The stirring assembly (44) includes a main rod (441) and a support rod (442). One end of the main rod (441) is provided with a through hole and is located in the exhaust chamber. The other end of the main rod (441) is located in the air inlet pipe (45). Several support rods (442) are provided, and the several support rods (442) are all provided on the main rod (441) and connected end to end.

9. A fully automated production line for producing dairy products according to claim 8, characterized in that: Each support rod (442) has a temperature measuring element installed at one end near the main rod (441), and each support rod (442) has several heating elements installed on its inner wall.

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