Low-temperature milk concentration processing tank

Abstract

The utility model discloses a low-temperature milk concentration processing tank, belongs to the technical field of concentration processing, and mainly solves the problems that high-temperature milk is evaporated when milk is heated by steam by a device in the prior art, part of nutritional ingredients in the milk can be damaged by high-temperature treatment, the taste and the quality of the milk are influenced, and meanwhile, the milk cannot be concentrated before concentration. In order to solve the problems that in the prior art, equipment needs to be independently used for preheating, preheating treatment cannot be directly completed conveniently, and the processing efficiency is low, the concentration processing tank comprises a concentration tank body, a mounting ring is detachably arranged on the inner bottom wall of the concentration tank body, a plurality of electric heating wires are fixedly connected to the outer surface of the mounting ring, and a supporting plate is fixedly connected to the outer surface of the concentration tank body; the vacuum pump is mounted on the supporting plate, the input end of the vacuum pump is connected with an exhaust pipe, one end of the exhaust pipe extends into the concentration tank body, a barometer is mounted at the top of the vacuum pump, a mounting groove is formed in the inner surface of the concentration tank body, a heat conduction ring is embedded in the mounting groove, and a conveying cavity is formed in the heat conduction ring.

Description

Technical Field

[0001] This utility model relates to the field of concentration processing technology, and more specifically, to a low-temperature milk concentration processing tank. Background Technology

[0002] Concentrated milk is a dehydrated milk product. It is generally made by dehydrating milk at high temperatures to reduce its water content, thereby increasing its concentration and preservation effect. The dehydration process is carried out by high temperature and vacuum extraction, which reduces the water content of the milk by about 70-80%. Dehydrated concentrated milk can be stored for a long time and is very convenient to carry. In the process of concentrating milk, processing tanks are used to concentrate the milk.

[0003] However, existing concentration devices are diverse. For example, utility model patent CN213074282U relates to a device for milk concentration and evaporation. This utility model includes a tank body, a tank lid, a tank bottom, and a heating assembly. The tank lid and tank bottom are fixed to both ends of the tank body by flanges and screws, respectively. The heating assembly includes a set of distribution shells, a set of rotating covers, and a spiral tube. The distribution shells are annular shell structures, and the distribution shells are fixed to the upper and lower parts of the tank body by fasteners. An annular groove is formed on one surface of the distribution shell. This utility model, by setting a spiral steam tube, can greatly increase the contact area between the steam tube and the milk, thereby improving the evaporation effect. At the same time, by setting distribution shells and rotating covers at both ends of the spiral tube, it can ensure the mutual rotation between the spiral tube and the tube body. In addition, in conjunction with the main shaft, connecting rod, motor, and stirring frame, it can efficiently stir and mix the milk in the tank, solving the problem of insufficient evaporation efficiency in existing evaporation and concentration equipment.

[0004] Although this concentration device can heat and mix milk using steam pipes and has high evaporation efficiency, the high temperature of the milk caused by steam heating during use can destroy some of the nutrients in the milk, affecting the taste and quality of the milk products. In addition, the milk needs to be preheated separately before concentration, which is not convenient to complete the preheating process directly and results in low processing efficiency. To avoid these problems, it is necessary to design a low-temperature milk concentration tank. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides a low-temperature milk concentration processing tank, which is accomplished by the following specific technical means:

[0007] A low-temperature milk concentration processing tank includes a concentration tank body. The inner bottom wall of the concentration tank body is detachably provided with an installation ring. Multiple electric heating wires are fixedly connected to the outer surface of the installation ring. The multiple electric heating wires are equidistantly distributed in a circle. A support plate is fixedly connected to the outer surface of the concentration tank body. A vacuum pump is mounted on the support plate. The input end of the vacuum pump is connected to a suction pipe, and one end of the suction pipe extends into the interior of the concentration tank body. A pressure gauge is installed on the top of the vacuum pump. An installation groove is formed on the inner surface of the concentration tank body. A heat-conducting ring is embedded in the installation groove. A conveying cavity is formed in the heat-conducting ring.

[0008] Preferably, the mounting groove has an annular cross-section, the conveying cavity is spiral, an inlet pipe and an outlet pipe are embedded in the heat-conducting ring, and one end of the inlet pipe and the outlet pipe extend into the conveying cavity. The output end of the vacuum pump is connected to a steam pipe, and one end of the steam pipe is connected to one end of the inlet pipe.

[0009] Preferably, the outer surface of the concentration tank is fitted with a heat insulation sleeve to insulate the heat of the concentration tank, and the outer surface of the steam pipe is fitted with a heat insulation sleeve to insulate the inside of the steam pipe.

[0010] Preferably, a drive shaft is installed inside the concentration tank via bearings, and multiple stirring rods are fixedly connected to the surface of the drive shaft. The stirring rods are located between multiple electric heating wires. A fixing frame is provided on the top of the concentration tank, and a servo motor is installed on the fixing frame. The output end of the servo motor is fixedly connected to one end of the drive shaft.

[0011] Preferably, two symmetrically arranged connecting rods are fixed on the drive shaft, and scrapers are fixedly connected to the ends of the two connecting rods that are far apart from each other, and the scrapers are in close contact with the inner wall of the concentration tank.

[0012] Preferably, a pressure valve is installed through the concentration tank, and the pressure valve is located between the fixed frame and the vacuum pump. A support leg is fixedly connected to the bottom of the concentration tank.

[0013] Preferably, a discharge hopper is provided through the concentration tank, and the discharge hopper is fixed on the side of the servo motor away from the pressure valve. A discharge pipe is connected to the bottom of the concentration tank, and a control valve is installed on the outer surface of the discharge pipe.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] In the process of low-temperature milk concentration, a vacuum pump is used to create a vacuum in the sealed concentration tank, while multiple evenly arranged electric heating wires heat the milk. Because the concentration tank is under vacuum, the boiling point of the milk is lowered. The low-temperature concentration process can remove water by evaporation at low temperatures, and the low-temperature treatment does not destroy some of the nutrients in the milk, thus improving the taste and quality of the milk products. Before a new batch of milk is concentrated, there is no need to use other equipment for preheating. Hot steam is simply introduced into the spiral conveying chamber through a steam pipe, and the heat is conducted by a heat-conducting coil, which facilitates the direct preheating of the new batch of milk. This process is highly efficient, and preheating can promote changes in the internal molecular structure, resulting in a better taste after concentration. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the concentration tank;

[0018] Figure 2 This is a perspective structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the mounting ring and the electric heating wire;

[0020] Figure 4 This is a schematic diagram of the heat conduction coil.

[0021] Figure 5 This is a schematic diagram of the stirring rod and scraper.

[0022] In the diagram: 1. Concentrating tank; 2. Mounting ring; 3. Electric heating wire; 4. Support plate; 5. Vacuum pump; 6. Evacuation pipe; 7. Pressure gauge; 8. Mounting groove; 9. Heat-conducting ring; 10. Conveying chamber; 11. Steam pipe; 12. Inlet pipe; 13. Outlet pipe; 14. Heat insulation sleeve; 15. Thermal insulation sleeve; 16. Drive shaft; 17. Stirring rod; 18. Connecting rod; 19. Scraper; 20. Fixing frame; 21. Servo motor; 22. Pressure valve; 23. Discharge hopper; 24. Discharge pipe; 25. Control valve. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0026] like Figure 2 , Figure 3 as well as Figure 4 As shown, this is a schematic diagram of the structure of the low-temperature milk concentration processing tank in this embodiment. The milk concentration processing tank in this embodiment includes a concentration tank body 1. The inner bottom wall of the concentration tank body 1 is detachably provided with an installation ring 2. Multiple electric heating wires 3 are fixedly connected to the outer surface of the installation ring 2. The multiple equidistant electric heating wires 3 are distributed in a circle. A support plate 4 is fixedly connected to the outer surface of the concentration tank body 1. A vacuum pump 5 is installed on the support plate 4. The input end of the vacuum pump 5 is connected to a suction pipe 6, and one end of the suction pipe 6 extends into the interior of the concentration tank body 1. A pressure gauge 7 is installed on the top of the vacuum pump 5. An installation groove 8 is opened on the inner surface of the concentration tank body 1. A heat-conducting ring 9 is embedded in the installation groove 8. A conveying chamber 10 is opened in the heat-conducting ring 9. The output end of the vacuum pump 5 is connected to a steam pipe 11, and one end of the steam pipe 11 is connected to one end of the air inlet pipe 12.

[0027] In the process of low-temperature concentration of milk, milk is first introduced into concentration tank 1. Then, by setting up vacuum pump 5, the vacuum pipe 6 is used to evacuate the sealed concentration tank 1. At the same time, multiple electric heating wires 3 are energized and heated by multiple evenly arranged electric heating wires 3. Since the concentration tank 1 is in a vacuum state, the boiling point of milk will be lowered. The boiling point of milk under vacuum is about 50 degrees Celsius. By using the low-temperature concentration process, the water in the heated milk can be removed by evaporation, which reduces the volume of milk and increases its concentration, thereby achieving the effect of low-temperature concentration. Low-temperature treatment will not destroy some of the nutrients in milk and improves the taste and quality of milk products. The steam produced by milk evaporation is sucked out by vacuum pump 5 and introduced into steam pipe 11.

[0028] Before a new batch of milk is processed for low-temperature concentration, there is no need to use other equipment to preheat the new batch of milk. Simply allow hot steam to be introduced into the spiral conveying chamber 10 through the steam pipe 11. After heat conduction through the heat conduction ring 9, the new batch of milk is continuously preheated by the heat conduction ring 9, making full use of the hot steam. This allows for convenient and direct preheating, resulting in high processing efficiency. Furthermore, preheating can promote changes in the internal molecular structure, making the concentrated milk taste better.

[0029] It is worth noting that in this embodiment, the cross-section of the mounting groove 8 is annular, the conveying cavity 10 is spiral, and the heat-conducting ring 9 is embedded with an air inlet pipe 12 and an air outlet pipe 13, and one end of the air inlet pipe 12 and the air outlet pipe 13 both extend into the conveying cavity 10.

[0030] like Figure 2 as well as Figure 5 As shown, in this embodiment, a drive shaft 16 is installed inside the concentration tank 1 via bearings. Multiple stirring rods 17 are fixedly connected to the surface of the drive shaft 16, and the stirring rods 17 are located between multiple electric heating wires 3. A fixing frame 20 is provided on the top of the concentration tank 1, and a servo motor 21 is installed on the fixing frame 20. The output end of the servo motor 21 is fixedly connected to one end of the drive shaft 16. In order to make the injected milk heat evenly, the servo motor 21 is controlled to provide driving force to the rotating drive shaft 16. The multiple stirring rods 17 can stir and mix the injected milk, so that the milk and the electric heating wires 3 can be in full contact, thereby heating the milk evenly and slowly heating the milk to forty or fifty degrees.

[0031] like Figure 5 As shown, in this embodiment, two symmetrically arranged connecting rods 18 are fixed on the drive shaft 16. Each end of the two connecting rods 18 that is far apart from each other is fixedly connected to a scraper 19, and the scraper 19 is in close contact with the inner wall of the concentration tank 1. When the drive shaft 16 rotates, the drive shaft 16 can drive the connecting rods 18 to move, so that the scraper 19 moves together with the connecting rods 18. The two scrapers 19 scrape the milk adhering to the inner wall of the tank, so that the milk containing water sticks to the wall and cannot be heated evenly, which affects the overall low-temperature concentration process of the milk.

[0032] It is worth noting that, such as Figure 1 As shown, in this embodiment, the outer surface of the concentration tank 1 is fitted with a heat insulation sleeve 14, which is used to isolate the heat of the concentration tank 1. The outer surface of the steam pipe 11 is fitted with a heat insulation sleeve 15, which is used to insulate the inside of the steam pipe 11 and prevent the hot steam transported by the steam pipe 11 from dissipating quickly.

[0033] like Figure 2As shown, in this embodiment, a pressure valve 22 is installed through the concentration tank 1, and the pressure valve 22 is located between the fixed frame 20 and the vacuum pump 5. The pressure valve 22 is used to open the tank when discharging or feeding, so as to maintain a pressure balance inside the tank and ensure the normal operation of discharging or feeding. A support leg is fixedly connected to the bottom of the concentration tank 1. A pouring hopper 23 is installed through the concentration tank 1, and the pouring hopper 23 is fixed to the side of the servo motor 21 away from the pressure valve 22. A discharge pipe 24 is connected to the bottom of the concentration tank 1. The discharge pipe 24 can be used to discharge the milk after low temperature concentration to the outside of the tank. A control valve 25 is installed on the outer surface of the discharge pipe 24.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature milk concentration processing tank, comprising a concentration tank body (1), wherein a mounting ring (2) is detachably provided on the inner bottom wall of the concentration tank body (1), and a plurality of electric heating wires (3) are fixedly connected to the outer surface of the mounting ring (2), the plurality of equidistant electric heating wires (3) being circumferentially distributed, characterized in that: A support plate (4) is fixedly connected to the outer surface of the concentration tank (1). A vacuum pump (5) is installed on the support plate (4). The input end of the vacuum pump (5) is connected to a suction pipe (6), and one end of the suction pipe (6) extends into the interior of the concentration tank (1). A pressure gauge (7) is installed on the top of the vacuum pump (5). An installation groove (8) is provided on the inner surface of the concentration tank (1). A heat-conducting ring (9) is embedded in the installation groove (8), and a delivery chamber (10) is provided in the heat-conducting ring (9).

2. The low-temperature milk concentration processing tank according to claim 1, characterized in that: The mounting groove (8) has an annular cross section, the conveying cavity (10) is spiral, and the heat conduction ring (9) is embedded with an air inlet pipe (12) and an air outlet pipe (13). One end of the air inlet pipe (12) and the air outlet pipe (13) extend into the conveying cavity (10). The output end of the vacuum pump (5) is connected to a steam pipe (11), and one end of the steam pipe (11) is connected to one end of the air inlet pipe (12).

3. The low-temperature milk concentration processing tank according to claim 1, characterized in that: The outer surface of the concentration tank (1) is fitted with a heat insulation sleeve (14), which is used to isolate the heat of the concentration tank (1). The outer surface of the steam pipe (11) is fitted with a heat insulation sleeve (15), which is used to insulate the inside of the steam pipe (11).

4. A low-temperature milk concentration processing tank according to claim 1, characterized in that: Inside the concentration tank (1), a drive shaft (16) is installed via bearings. Multiple stirring rods (17) are fixedly connected to the surface of the drive shaft (16), and the stirring rods (17) are located between multiple electric heating wires (3). A fixed frame (20) is installed on the top of the concentration tank (1), and a servo motor (21) is installed on the fixed frame (20). The output end of the servo motor (21) is fixedly connected to one end of the drive shaft (16).

5. A low-temperature milk concentration processing tank according to claim 4, characterized in that: Two symmetrically arranged connecting rods (18) are fixed on the drive shaft (16). Scrapers (19) are fixedly connected to the ends of the two connecting rods (18) that are far apart from each other, and the scrapers (19) are tightly fitted to the inner wall of the concentration tank (1).

6. A low-temperature milk concentration processing tank according to claim 1, characterized in that: A pressure valve (22) is installed through the concentration tank (1), and the pressure valve (22) is located between the fixed frame (20) and the vacuum pump (5). A support leg is fixedly connected to the bottom of the concentration tank (1).

7. A low-temperature milk concentration processing tank according to claim 1, characterized in that: The concentration tank (1) is provided with a pouring hopper (23), and the pouring hopper (23) is fixed on the side of the servo motor (21) away from the pressure valve (22). The bottom of the concentration tank (1) is connected to a discharge pipe (24), and a control valve (25) is installed on the outer surface of the discharge pipe (24).

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