Dairy product production line

Abstract

The utility model relates to the technical field of dairy product production, and provides a dairy product production line which comprises a milk bin, a fat separator, an ultrafiltration membrane system and freezing point concentration equipment, the fat separator is at least provided with a first inlet and a skimmed milk outlet, and the ultrafiltration membrane system is provided with a second inlet, a first low-lactose low-fat milk outlet and a first crystal water inlet. The freezing point concentration equipment is provided with a first low-lactose low-fat milk inlet, a crystal water outlet and a concentrated milk outlet; wherein the first inlet is communicated with the milk bin, the skimmed milk outlet is communicated with the second inlet, the first low-lactose and low-fat milk outlet is communicated with the first low-lactose and low-fat milk inlet, and the first crystal water inlet is communicated with the crystal water outlet, and no extra washing water is needed, so that the resource loss is effectively reduced, and the production cost is saved; the fragrance and flavor of the dairy product can be perfectly preserved, and the production line requirements of high-protein low-lactose low-fat dairy products in the current industry are met.

Description

Technical Field

[0001] This utility model relates to the field of dairy product production technology, and in particular to a dairy product production line. Background Technology

[0002] With increasing global health awareness, more and more people are paying attention to the nutritional components of food, especially those who need to control lactose intake, pursue a high-protein diet, manage their weight, and are fitness enthusiasts. Traditional foods often fail to meet their needs. Against this backdrop, the development of high-protein, low-lactose, and low-fat dairy product production lines has emerged. These lines aim to use advanced food processing technology to produce foods that meet nutritional requirements while also maintaining good taste and flavor, satisfying the health aspirations of specific consumer groups. Therefore, developing production lines for high-protein, low-lactose, and low-fat dairy products is a crucial issue that the industry urgently needs to address. Utility Model Content

[0003] This invention provides a dairy production line to address the current industry demand for production lines that develop high-protein, low-lactose, and low-fat dairy products.

[0004] This utility model provides a dairy production line, comprising:

[0005] Milk silo;

[0006] A fat separator, wherein the fat separator is provided with at least a first inlet and a skim milk outlet;

[0007] An ultrafiltration membrane system for controlling the lactose content of skim milk, the ultrafiltration membrane system having a second inlet, a first low-lactose, low-fat milk outlet and a first water of crystallization inlet;

[0008] A freezing point concentration device is used to concentrate low-lactose, low-fat milk and output water of crystallization. The freezing point concentration device is provided with a first low-lactose, low-fat milk inlet, a water of crystallization outlet, and a concentrated milk outlet.

[0009] The first inlet is connected to the milk tank, the skim milk outlet is connected to the second inlet, the first low-lactose low-fat milk outlet is connected to the first low-lactose low-fat milk inlet, and the first water of crystallization inlet is connected to the water of crystallization outlet.

[0010] According to the present invention, a dairy production line further includes a material storage tank, which is provided with a second low-lactose, low-fat milk inlet and a second low-lactose, low-fat milk outlet.

[0011] The second low-lactose, low-fat milk inlet is connected to the first low-lactose, low-fat milk outlet, and the second low-lactose, low-fat milk outlet is connected to the first low-lactose, low-fat milk inlet.

[0012] According to the present invention, a dairy production line further includes a first direct sterilization system and a first filling machine.

[0013] The first direct sterilization system is provided with a first sterilization inlet and a first sterilization outlet. The first sterilization inlet is connected to the concentrated milk outlet, and the first sterilization outlet is connected to the feed end of the first filling machine.

[0014] According to the present invention, a dairy production line is provided, wherein the ultrafiltration membrane system is provided with a first lactose solution outlet, and the dairy production line further includes a fermentation tank, wherein the fermentation tank is provided with a first lactose solution inlet and a second crystal water inlet, the first lactose solution inlet being connected to the first lactose solution outlet, and the second crystal water inlet being connected to the crystal water outlet.

[0015] According to the present invention, a dairy production line is provided, wherein the fermentation tank is provided with a fermentation outlet, and the dairy production line further includes a second direct sterilization system and a second filling machine.

[0016] The second direct sterilization system is provided with a second sterilization inlet and a second sterilization outlet. The second sterilization inlet is connected to the fermentation outlet, and the second sterilization outlet is connected to the feed end of the second filling machine.

[0017] According to the present invention, a dairy production line is provided, wherein the fat separator is further provided with a cream outlet;

[0018] The dairy production line also includes an online mixing device, which is provided with a first feed inlet and a second feed inlet;

[0019] The first feed inlet is connected to the first low-lactose, low-fat milk outlet, and the second feed inlet is connected to the light cream outlet.

[0020] According to the present invention, a dairy production line is provided, wherein the online mixing device is provided with a first mixing outlet, and the dairy production line further includes a mixing tank, wherein the mixing tank is provided with a second mixing inlet, and the second mixing inlet is connected to the first mixing outlet.

[0021] According to the present invention, a dairy production line is provided, wherein the mixing tank is provided with a second mixing outlet, and the dairy production line further includes a homogenizer, wherein the homogenizer is provided with a homogenizing inlet, and the homogenizing inlet is connected to the second mixing outlet.

[0022] According to the present invention, a dairy production line is provided, wherein the homogenizer is provided with a homogenization outlet, and the dairy production line further includes a third direct sterilization system and a third filling machine;

[0023] The third direct sterilization system is provided with a third sterilization inlet and a third sterilization outlet. The third sterilization inlet is connected to the homogenization outlet, and the third sterilization outlet is connected to the feed end of the third filling machine.

[0024] According to the present invention, a dairy production line further includes a milk purifier, which has a milk purifier inlet and a milk purifier outlet. The milk purifier inlet is connected to the milk tank, and the milk purifier outlet is connected to the first inlet.

[0025] The dairy production line provided by this utility model includes a fat separator. Skim milk is introduced into an ultrafiltration membrane system through the skim milk outlet. This ultrafiltration membrane system uses a percolation process and combines it with crystal water separated by a freezing point concentration device. The crystal water is returned to the ultrafiltration membrane system as ultrafiltration wash water. By precisely controlling the amount of crystal water added to match the amount of ultrafiltration permeate output, the lactose dilution effect is achieved without the need to add additional wash water, thereby effectively reducing resource consumption and saving production costs.

[0026] Understandably, the water of crystallization obtained through freezing point concentration equipment has a very high purity. As the original water source for milk, using water of crystallization to wash away lactose can maintain product stability. Furthermore, the freezing point concentration technology benefits from the low-temperature operating environment, which can perfectly preserve the aroma and flavor of dairy products, meeting the current industry demand for production lines of high-protein, low-lactose, and low-fat dairy products. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the dairy production line provided by this utility model.

[0029] Figure label:

[0030] 1. Milk Tank; 2. Milk Purifier; 3. Fat Separator; 4. Ultrafiltration Membrane System; 5. Fermentation Tank; 6. Material Storage Tank; 71. First Direct Sterilization System; 72. Second Direct Sterilization System; 73. Third Direct Sterilization System; 81. First Filling Machine; 82. Second Filling Machine; 83. Third Filling Machine; 9. Freezing Point Concentrator; 10. Mixing Tank; 11. Homogenizer; 12. Rotary Pump; 13. Flow Meter; 14. Online Monitoring Device; 151. First Valve Assembly; 152. Second Valve Assembly; 16. Online Mixing Assembly 17. First pipeline; 18. Second pipeline; 19. Third pipeline; 20. Fourth pipeline; 21. Fifth pipeline; 22. Sixth pipeline; 23. Seventh pipeline; 24. Eighth pipeline; 25. Ninth pipeline; 26. Tenth pipeline; 27. Eleventh pipeline; 28. Twelfth pipeline; 29. ​​Thirteenth pipeline; 30. Fourteenth pipeline; 31. Fifteenth pipeline; 32. Sixteenth pipeline; 33. Seventeenth pipeline; 34. Eighteenth pipeline; 35. Nineteenth pipeline; 36. Twentieth pipeline; 37. Twenty-first pipeline. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In related technologies, membrane concentration technology is commonly used for dairy product concentration and production. However, the use of membrane concentration technology has the following problems: First, membrane concentration at high concentrations is prone to concentration polarization and severe surface fouling, affecting production and product quality; Second, membrane concentration under high pressure may generate heat, thus affecting the stability of heat-sensitive substances; Third, membrane concentration is based on molecular weight separation, which may lead to the loss of target components during the process; Fourth, membrane concentration requires high pressure and temperature, resulting in relatively high energy consumption.

[0033] The following is combined with Figure 1 This invention describes a dairy production line.

[0034] Understandably, referring to Figure 1This utility model provides a dairy production line, including a milk tank 1, a fat separator 3, an ultrafiltration membrane system 4, and a freezing point concentration device 9. The fat separator 3 is provided with at least a first inlet and a skim milk outlet. The ultrafiltration membrane system 4 is used to regulate the lactose content of skim milk. The ultrafiltration membrane system 4 is provided with a second inlet, a first low-lactose low-fat milk outlet, and a first water of crystallization inlet. The freezing point concentration device 9 is used to concentrate low-lactose low-fat milk and output water of crystallization. The freezing point concentration device 9 is provided with a first low-lactose low-fat milk inlet, a water of crystallization outlet, and a concentrated milk outlet.

[0035] The first inlet is connected to milk tank 1, the skim milk outlet is connected to the second inlet, the first low-lactose low-fat milk outlet is connected to the first low-lactose low-fat milk inlet, and the first water of crystallization inlet is connected to the water of crystallization outlet.

[0036] It should be noted that in this embodiment of the utility model, the milk tank 1 is used to store raw milk, and the milk tank 1 is provided with a discharge port, so the discharge port is connected to the first inlet; the fat separator 3 is used to separate the raw milk into skim milk and light cream.

[0037] The dairy production line provided by this utility model separates raw milk into skim milk and cream using a fat separator 3. The skim milk is introduced into an ultrafiltration membrane system 4 through the skim milk outlet. The ultrafiltration membrane system 4 uses a percolation process and combines it with crystal water separated by an ice point concentration device 9. The crystal water is returned to the ultrafiltration membrane system 4 as ultrafiltration wash water. By precisely controlling the amount of crystal water added to match the amount of ultrafiltration permeate output, the lactose dilution effect is achieved without the need to add additional wash water, thereby effectively reducing resource consumption and saving production costs.

[0038] The water of crystallization obtained by the freezing point concentration equipment 9 has a very high purity. As the original water for milk, using water of crystallization to wash away lactose can maintain the stability of the product. Moreover, the freezing point concentration technology benefits from the low-temperature operating environment, which can perfectly preserve the aroma and flavor of dairy products, meeting the current industry demand for production lines of high-protein, low-lactose, and low-fat dairy products.

[0039] Reference Figure 1 In this embodiment of the utility model, the dairy production line also includes a milk purifier 2, which is located between the milk tank 1 and the fat separator 3. The milk purifier 2 has a milk purifier inlet and a milk purifier outlet. The milk purifier inlet is connected to the discharge port of the milk tank 1, and the milk purifier outlet is connected to the first inlet.

[0040] With the above structure, a milk purifier 2 is set between the milk tank 1 and the fat separator 3. The milk purifier 2 is mainly used to separate and purify milk, which can effectively remove impurities from raw milk and ensure product quality.

[0041] It should be noted that, in this embodiment of the utility model, all connection methods can be achieved through pipelines.

[0042] In some embodiments of this utility model, the milk outlet of the milk tank 1 and the milk inlet of the milk purifier 2, as well as the milk outlet of the milk purifier 2 and the first inlet of the fat separator 3, are all connected by a first pipeline 17.

[0043] In some embodiments of this utility model, the first pipeline 17 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of raw milk.

[0044] Rotary pump 12, as a commonly used conveying device, works by using the rotation of a rotor to drive fluid flow. In the dairy processing process, rotary pump 12 can stably transport raw milk from milk tank 1 to milk purifier 2, ensuring the continuity of the entire production line.

[0045] In some embodiments of this utility model, the skim milk outlet of the fat separator 3 is connected to the second inlet of the ultrafiltration membrane system 4 via a second pipeline 18.

[0046] Similarly, in some embodiments of this utility model, the second pipeline 18 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of skim milk.

[0047] In some embodiments of this invention, an online detection device 14 is provided on the second pipeline 18. The application of the online detection device 14 ensures precise control of process indicators and enables strict control of product quality in continuous production.

[0048] Understandably, referring to Figure 1 In some embodiments of this utility model, the dairy production line further includes a material storage tank 6, which is provided with a second low-lactose low-fat milk inlet and a second low-lactose low-fat milk outlet.

[0049] The second low-lactose, low-fat milk inlet is connected to the first low-lactose, low-fat milk outlet, and the second low-lactose, low-fat milk outlet is connected to the first low-lactose, low-fat milk inlet.

[0050] The above structure includes a material storage tank 6 for temporarily storing low-lactose, low-fat milk, providing a buffer for materials during the production process and ensuring continuous operation of the production line. In the production line, the production speeds of different stages may vary; the material storage tank 6 can balance these speed differences, ensuring a balance between material supply and demand.

[0051] Specifically, in this embodiment, the low-lactose, low-fat milk output from the ultrafiltration membrane system 4 is output through the first low-lactose, low-fat milk outlet. A seventh pipeline 23, a twelfth pipeline 28, and a first valve group 151 for distributing the low-lactose, low-fat milk are provided between the first low-lactose, low-fat milk outlet of the ultrafiltration membrane system 4 and the second low-lactose, low-fat milk inlet of the material storage tank 6. One end of the seventh pipeline 23 is connected to the first low-lactose, low-fat milk outlet, and one end of the twelfth pipeline 28 is connected to the second low-lactose, low-fat milk inlet. The other ends of the seventh pipeline 23 and the other ends of the twelfth pipeline 28 are connected through the first valve group 151. After distribution by the first valve group 151, the milk enters the material storage tank 6 through the twelfth pipeline 28 and the second low-lactose, low-fat milk inlet.

[0052] Similarly, in some embodiments of this utility model, the seventh pipeline 23 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of low-lactose and low-fat milk.

[0053] In some embodiments of this invention, the second low-lactose, low-fat milk outlet of the material storage tank 6 and the first low-lactose, low-fat milk inlet of the freezing point concentration device 9 are connected via the fourteenth pipeline 30. This can be understood as the low-lactose, low-fat milk temporarily stored in the material storage tank 6 entering the freezing point concentration device via the fourteenth pipeline 30 and the first low-lactose, low-fat milk inlet connected to the fourteenth pipeline 30.

[0054] Similarly, in some embodiments of this utility model, the fourteenth pipeline 30 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of low-lactose and low-fat milk.

[0055] It should be noted that in some embodiments of this utility model, inside the freezing point concentration device 9, water is separated in the form of crystals; the first crystal water inlet and the crystal water outlet are connected through the fifteenth pipeline 31, and the crystal water is returned to the ultrafiltration membrane system 4 through the fifth pipeline as ultrafiltration washing and dehydration to treat the skim milk and form low lactose low-fat milk and lactose solution.

[0056] In some embodiments of this utility model, the fifteenth pipeline 31 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of crystal water.

[0057] Similarly, in some embodiments of this utility model, an online detection device 14 is provided on the seventh pipeline 23. The application of the online detection device 14 ensures the precise control of process indicators and enables strict control of product quality in continuous production.

[0058] Understandably, referring to Figure 1In some embodiments of this utility model, the dairy production line further includes a first direct sterilization system 71 and a first filling machine 81; the first direct sterilization system 71 is provided with a first sterilization inlet and a first sterilization outlet, the first sterilization inlet is connected to the concentrated milk outlet, and the first sterilization outlet is connected to the feed end of the first filling machine 81.

[0059] With the above setup, the milk concentrated by the freezing point concentration equipment 9 is transported to the first direct sterilization system 71 for sterilization, and then enters the first filling machine 81 for aseptic filling. This direct sterilization method minimizes the destruction of the original nutrients and flavor in dairy products.

[0060] In some embodiments of this utility model, the first sterilization inlet of the first direct sterilization system 71 is connected to the concentrated milk outlet of the freezing point concentration device 9 through the sixteenth pipeline 32; the first sterilization outlet of the first direct sterilization system 71 is connected to the feed end of the first filling machine 81 through the eighteenth pipeline 34.

[0061] In some embodiments of this utility model, the sixteenth pipeline 32 is equipped with an online detection device 14, which is used to test the standards of the concentrated milk.

[0062] In some embodiments of this utility model, the eighteenth pipeline 34 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of concentrated milk.

[0063] In some embodiments of this utility model, the sixteenth pipeline 32 is also connected to the seventeenth pipeline 33, and the end of the seventeenth pipeline 33 away from the sixteenth pipeline 32 is connected to the fourteenth pipeline 30. It can be understood that the portion that does not meet the standard is returned to the freezing point concentration equipment 9 through the seventeenth pipeline 33 and the fourteenth pipeline 30 for further concentration, and after meeting the standard, it is pumped to the first direct sterilization system 71 by the sixteenth pipeline 32.

[0064] Understandably, referring to Figure 1 In some embodiments of this utility model, the ultrafiltration membrane system 4 is provided with a first lactose solution outlet, and the dairy production line also includes a fermentation tank 5. The fermentation tank 5 is provided with a first lactose solution inlet and a second crystal water inlet. The first lactose solution inlet is connected to the first lactose solution outlet, and the second crystal water inlet is connected to the crystal water outlet.

[0065] With the above setup, the lactose solution separated during ultrafiltration and the water of crystallization produced by the freezing point concentration device 9 are both effectively utilized and fed into the fermentation tank 5 for fermentation to produce a fermented beverage with natural ash. In this process, the recycling of ultrafiltration permeate and the water of crystallization from the freezing point concentration not only achieves effective waste liquid conversion but also avoids the need for additional water, enhances product stability, and reduces production costs.

[0066] In some embodiments of this utility model, the first lactose solution inlet of the fermenter 5 and the first lactose solution outlet of the ultrafiltration membrane system 4 are connected through a third pipeline 19.

[0067] In some embodiments of this utility model, an online detection device 14 is provided on the third pipeline 19. The application of the online detection device 14 ensures the precise control of process indicators and enables strict control of product quality in continuous production.

[0068] In some embodiments of this utility model, the third pipeline 19 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of lactose solution.

[0069] In some embodiments of this utility model, the second pipeline 18 and the seventh pipeline 23 are connected by the twentieth pipeline 36. The online detection device 14 monitors the lactose content of the skim milk in the second pipeline 18 in real time. If it does not meet the standard, it is returned to the ultrafiltration membrane system 4 for further processing through the twentieth pipeline 36 and the second pipeline 18. Once it meets the standard, it is pumped to the fermenter 5 through the third pipeline 19 for subsequent fermentation process.

[0070] In some embodiments of this utility model, the second crystallization water inlet of the fermenter 5 and the crystallization water outlet of the freezing point concentration device 9 are connected through the twenty-first pipeline 37.

[0071] Specifically, in this embodiment, the fifteenth pipeline 31, the twenty-first pipeline 37, and the crystallization water outlet of the freezing point concentration device 9 are controlled and distributed through the second valve group 152.

[0072] Understandably, referring to Figure 1 In some embodiments of this utility model, the fermentation tank 5 is provided with a fermentation outlet, and the dairy production line also includes a second direct sterilization system 72 and a second filling machine 82; the second direct sterilization system 72 is provided with a second sterilization inlet and a second sterilization outlet, the second sterilization inlet is connected to the fermentation outlet, and the second sterilization outlet is connected to the feed end of the second filling machine 82.

[0073] With the above setup, the fermented product is transported through the fermentation outlet to the second direct sterilization system 72 for sterilization, and then enters the second filling machine 82 for aseptic filling. This direct sterilization method minimizes the destruction of the original nutrients and flavor in the dairy products.

[0074] In some embodiments of this invention, the second sterilization inlet and the fermentation outlet are connected via a fourth pipeline 20, and the second sterilization outlet and the feed end of the second filling machine 82 are connected via a fifth pipeline 21. The lactose solution separated during ultrafiltration and the water of crystallization produced by the freezing point concentration device 9 are both effectively utilized and fed into the fermentation tank 5. The fermented product enters the second direct sterilization system 72 via the fourth pipeline 20, and is finally guided to the filling machine via the fifth pipeline 21, completing the production of a fermented beverage with natural ash.

[0075] In some embodiments of this utility model, an online detection device 14 is provided on the fourth pipeline 20. The application of the online detection device 14 ensures the precise control of process indicators and enables strict control of product quality in continuous production.

[0076] In some embodiments of this utility model, both the fourth pipeline 20 and the fifth pipeline 21 are equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of fermented beverages.

[0077] Understandably, referring to Figure 1 In some embodiments of this utility model, the fat separator 3 is also provided with a cream outlet; the dairy production line also includes an online mixing device 16, which is provided with a first feed inlet and a second feed inlet; wherein, the first feed inlet is connected to the first low-lactose low-fat milk outlet, and the second feed inlet is connected to the cream outlet.

[0078] With the above setup, the online mixing device 16 contains light cream and low-lactose, low-fat milk. The online mixing device 16 simultaneously adjusts the mixing amount of light cream and low-lactose, low-fat milk to achieve precise online control of the light cream index until the preset index is reached.

[0079] In some embodiments of this utility model, the first valve group 151 is connected to the thirteenth pipeline 29, and the thirteenth pipeline 29 is connected to the online mixing device 16. Therefore, it can be understood that the connection between the first feed inlet and the first low-lactose low-fat milk outlet is specifically as follows: the first low-lactose low-fat milk outlet of the ultrafiltration membrane system 4 is connected to the thirteenth pipeline 29 through the seventh pipeline 23 and the first valve group 151, and is connected to the first feed inlet of the online mixing device 16 through the thirteenth pipeline 29.

[0080] In some embodiments of this utility model, the second inlet of the online mixing device 16 is connected to the cream outlet of the fat separator 3 via a sixth pipeline 22.

[0081] In some embodiments of this utility model, the sixth pipeline 22 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of the mixed cream.

[0082] Understandably, referring to Figure 1 In some embodiments of this utility model, the online mixing device 16 is provided with a first mixing outlet, and the dairy production line also includes a mixing tank 10, which is provided with a second mixing inlet connected to the first mixing outlet. The mixing tank 10 performs a mixing action on the mixed cream, thereby mixing the cream and lactose solution, achieving efficient mixing.

[0083] In some embodiments of this utility model, the first mixing outlet of the online mixing device 16 and the second mixing inlet of the mixing tank 10 are connected by an eighth pipeline 24.

[0084] In some embodiments of this utility model, the eighth pipeline 24 is equipped with a flow meter 13, which can effectively realize the continuous and precise delivery and control of the mixed cream.

[0085] Understandably, referring to Figure 1 In some embodiments of this utility model, the mixing tank 10 is provided with a second mixing outlet, and the dairy production line also includes a homogenizer 11, which is provided with a homogenization inlet connected to the second mixing outlet. By setting up the homogenizer 11, the homogenizer 11 homogenizes the qualified cream after mixing, so that materials of different components or phases are uniformly mixed at the molecular or microscopic level, ensuring the stability and consistency of the dairy products and avoiding phenomena such as stratification, sedimentation or phase separation; making the particle and component distribution in the dairy products more uniform.

[0086] In some embodiments of this utility model, the homogenization inlet of the homogenizer 11 and the second mixing outlet of the mixing tank 10 are connected through the ninth pipeline 25.

[0087] Specifically, in this embodiment, the mixing tank 10 has a tank structure with multiple layers of stirring blades. Of course, in some embodiments, the mixing tank 10 may also have a tank structure with spiral stirring blades, which is not limited here.

[0088] In some embodiments of this utility model, the ninth pipeline 25 is equipped with an online detection device 14, which monitors in real time whether the mixed cream output from the first mixing outlet is qualified, thereby realizing online precise control of the cream index.

[0089] In some embodiments of this utility model, the ninth pipeline 25 is equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of the mixed cream.

[0090] In some embodiments of this utility model, the ninth pipeline 25 is connected to the nineteenth pipeline 35, and the end of the nineteenth pipeline 35 away from the ninth pipeline 25 is connected to the online mixing device 16.

[0091] After inspection by the online detection device 14 at the second mixing outlet, any substandard cream is returned to the online mixing device 16 via the nineteenth pipeline 35 for re-mixing. The online mixing device 16 simultaneously adjusts the mixing amounts of light cream and low-lactose, low-fat milk, achieving precise online control of the light cream's specifications until the preset indicators are met. Finally, qualified light cream is sent to the homogenizer 11 via the ninth pipeline 25.

[0092] Understandably, referring to Figure 1 In some embodiments of this utility model, the homogenizer 11 is provided with a homogenization outlet, and the dairy production line also includes a third direct sterilization system 73 and a third filling machine 83.

[0093] The third direct sterilization system 73 is equipped with a third sterilization inlet and a third sterilization outlet. The third sterilization inlet is connected to the homogenization outlet, and the third sterilization outlet is connected to the feed end of the third filling machine 83.

[0094] With the above setup, the homogenized cream is conveyed through the homogenization outlet to the third direct sterilization system 73 for sterilization, and then enters the third filling machine 83 for aseptic filling. It is understandable that using direct sterilization minimizes the destruction of the original nutrients and flavor in dairy products.

[0095] In some embodiments of this utility model, the third sterilization inlet and the homogenization outlet are connected through the tenth pipeline 26, and the third sterilization outlet and the feed end of the third filling machine 83 are connected through the eleventh pipeline 27. Qualified light cream is sent into the homogenizer 11 through the ninth pipeline 25, and after homogenization, it enters the third direct sterilization system 73 through the tenth pipeline 26, and is then transported to the third filling machine 83 through the eleventh pipeline 27 to complete the entire production process.

[0096] In some embodiments of this utility model, both the tenth pipeline 26 and the eleventh pipeline 27 are equipped with a rotor pump 12 and a flow meter 13, which can effectively realize the continuous and precise delivery and control of cream.

[0097] It should be noted that, in some embodiments of this utility model, the first direct sterilization system 71, the second direct sterilization system 72 and the third direct sterilization system 73 can be understood as sterilization equipment that performs continuous ultra-high temperature treatment by direct steam injection.

[0098] Reference Figure 1 The general workflow of the above dairy production line is as follows:

[0099] After being purified by the milk purifier 2, the raw milk is first separated into skim milk and cream by the fat separator 3. The skim milk is then introduced into the ultrafiltration membrane system 4 via the second pipeline 18. This system uses a percolation process, combined with the crystal water separated by the freezing point concentration device 9. By precisely controlling the amount of crystal water added, it is matched with the output of the ultrafiltration permeate, thereby achieving the effect of lactose dilution. The online detection device 14 monitors the lactose content of the skim milk in real time. If it does not meet the standard, it is returned to the ultrafiltration membrane system 4 for further processing via the twentieth pipeline 36; once it meets the standard, it is pumped to the fermentation tank 5 via the third pipeline 19 for the subsequent fermentation process.

[0100] The lactose solution separated during ultrafiltration and the water of crystallization produced by the freezing point concentration device 9 are both effectively utilized and sent to the fermentation tank 5. The fermented product enters the second direct sterilization system 72 through the fourth pipeline 20, and is finally guided to the second filling machine 82 via the fifth pipeline 21, completing the production of a fermented beverage with natural ash. In this process, the recovery and utilization of ultrafiltration leachate and freezing point concentrated water of crystallization not only achieves effective waste liquid conversion but also avoids the need for additional water, enhances product stability, and reduces production costs.

[0101] Low-lactose, low-fat milk is distributed via the first valve group 151 on the seventh pipeline 23, then enters the material storage tank 6 through the twelfth pipeline 28, and then enters the freezing point concentration equipment 9 through the fourteenth pipeline 30. Inside the equipment, water is separated in the form of crystals and returned to the ultrafiltration membrane system 4 as ultrafiltration wash water through the fifteenth pipeline 31. The concentrated milk is inspected by the online detection device 14 on the sixteenth pipeline 32. The portion that does not meet the standards is returned to the seventeenth pipeline 33 for further concentration. After passing the standard, it is pumped by the sixteenth pipeline 32 to the first direct sterilization system 71, and then enters the first filling machine 81 through the eighteenth pipeline 34.

[0102] The water of crystallization obtained by the freezing point concentration equipment 9 has a very high purity. As the original water for milk, the method of washing away lactose with water of crystallization can maintain the stability of the product.

[0103] Whipping cream enters the online mixing unit 16 via the sixth pipeline 22, while low-lactose, low-fat milk is distributed via the first valve group 151 to the thirteenth pipeline 29. The mixed whipping cream is then sent to the mixing tank 10 via the eighth pipeline 24. After inspection by the online detection device 14 at the outlet, any substandard cream is returned to the online mixing unit 16 via the nineteenth pipeline 35 for re-mixing. The online mixing unit 16 simultaneously adjusts the mixing ratio of whipping cream and low-lactose, low-fat milk, achieving precise online control of the whipping cream's specifications until the preset indicators are met. Finally, the qualified whipping cream is sent to the homogenizer 11 via the ninth pipeline 25. After homogenization, it enters the third direct sterilization system 73 via the tenth pipeline 26, and is then transported to the third filling machine 83 via the eleventh pipeline 27, completing the entire production process.

[0104] Understandably, the purpose of adopting the aforementioned dairy production line is clear: first, to precisely control the ratio of protein, lactose, and fat in food through scientific process design, producing food that meets specific health needs; second, to improve the efficiency and quality of food processing by utilizing advanced technologies such as freezing point concentration, ensuring that products meet high standards in terms of nutrition, taste, and safety; and third, to efficiently utilize by-products from the process, achieving cost savings and maximizing resource utilization.

[0105] Compared to membrane concentration technology, freezing point concentration technology can achieve a higher concentration ratio without causing loss of the target component. Freezing point concentration, based on the characteristic of freezing point crystallization separation, results in less scaling and allows for long-term operation. Since it operates under low-temperature conditions, it is friendly to heat-sensitive substances. Selective separation can be achieved by controlling the crystallization process, without affecting other dissolved components under specific conditions. In terms of energy, the energy used in the freezing point concentration process is mainly used for freezing and thawing, and this energy can be partially recovered and reused through a heat recovery system.

[0106] In the production process of the dairy production line, the light cream from the fat separator 3, the lactose solution from the ultrafiltration membrane system 4, and the water of crystallization from the freezing point concentration equipment 9 are all fully utilized, minimizing waste liquid discharge and achieving efficient resource utilization. This is suitable for industrial production needs, not only maximizing material utilization but also significantly reducing production costs and the burden of wastewater treatment, thus maximizing economic benefits. The more flexible online control strategy of the dairy production line, this dynamic management method is more in line with the actual needs of industrial production, helping us to more strictly control product quality and ensure the continuous stability of product quality.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dairy production line, characterized in that, include: Milk container (1); A fat separator (3) is provided with at least a first inlet and a skim milk outlet; An ultrafiltration membrane system (4) is used to regulate the lactose content of skim milk. The ultrafiltration membrane system (4) is provided with a second inlet, a first low-lactose low-fat milk outlet and a first water of crystallization inlet. Freezing point concentration equipment (9), the freezing point concentration equipment (9) is used to concentrate low lactose and low fat milk and output water of crystallization, the freezing point concentration equipment (9) is provided with a first low lactose and low fat milk inlet, a water of crystallization outlet and a concentrated milk outlet; The first inlet is connected to the milk tank (1), the skim milk outlet is connected to the second inlet, the first low-lactose low-fat milk outlet is connected to the first low-lactose low-fat milk inlet, and the first water of crystallization inlet is connected to the water of crystallization outlet.

2. The dairy production line according to claim 1, characterized in that, The dairy production line also includes a material storage tank (6), which is equipped with a second low-lactose low-fat milk inlet and a second low-lactose low-fat milk outlet; The second low-lactose, low-fat milk inlet is connected to the first low-lactose, low-fat milk outlet, and the second low-lactose, low-fat milk outlet is connected to the first low-lactose, low-fat milk inlet.

3. The dairy production line according to claim 1, characterized in that, The dairy production line also includes a first direct sterilization system (71) and a first filling machine (81). The first direct sterilization system (71) is provided with a first sterilization inlet and a first sterilization outlet. The first sterilization inlet is connected to the concentrated milk outlet, and the first sterilization outlet is connected to the feed end of the first filling machine (81).

4. The dairy production line according to claim 1, characterized in that, The ultrafiltration membrane system (4) is provided with a first lactose solution outlet. The dairy production line also includes a fermentation tank (5). The fermentation tank (5) is provided with a first lactose solution inlet and a second crystal water inlet. The first lactose solution inlet is connected to the first lactose solution outlet, and the second crystal water inlet is connected to the crystal water outlet.

5. The dairy production line according to claim 4, characterized in that, The fermentation tank (5) is provided with a fermentation outlet, and the dairy production line also includes a second direct sterilization system (72) and a second filling machine (82). The second direct sterilization system (72) is provided with a second sterilization inlet and a second sterilization outlet. The second sterilization inlet is connected to the fermentation outlet, and the second sterilization outlet is connected to the feed end of the second filling machine (82).

6. The dairy production line according to claim 1, characterized in that, The fat separator (3) is also equipped with a cream outlet; The dairy production line also includes an online mixing device (16), which is provided with a first feed inlet and a second feed inlet; The first feed inlet is connected to the first low-lactose, low-fat milk outlet, and the second feed inlet is connected to the light cream outlet.

7. The dairy production line according to claim 6, characterized in that, The online mixing device (16) is provided with a first mixing outlet, and the dairy production line also includes a mixing tank (10), which is provided with a second mixing inlet, and the second mixing inlet is connected to the first mixing outlet.

8. The dairy production line according to claim 7, characterized in that, The mixing tank (10) is provided with a second mixing outlet. The dairy production line also includes a homogenizer (11), which is provided with a homogenizing inlet and is connected to the second mixing outlet.

9. The dairy production line according to claim 8, characterized in that, The homogenizer (11) is provided with a homogenization outlet, and the dairy production line also includes a third direct sterilization system (73) and a third filling machine (83). The third direct sterilization system (73) is provided with a third sterilization inlet and a third sterilization outlet. The third sterilization inlet is connected to the homogenization outlet, and the third sterilization outlet is connected to the feed end of the third filling machine (83).

10. The dairy production line according to any one of claims 1 to 9, characterized in that, The dairy production line also includes a milk purifier (2), which has a milk purifier inlet and a milk purifier outlet. The milk purifier inlet is connected to the milk tank (1), and the milk purifier outlet is connected to the first inlet.

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