A cooling device for producing drawn protein
By using separate drying and cooling chambers, combined with a heat-conducting system and air duct system, the problem of residual moisture after the production of textured protein was solved, achieving effective cooling and drying, extending shelf life and reducing energy consumption.
Patent Information
- Application Number
- CN202522269650.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-27
AI Technical Summary
The high temperature after the production of textured protein means that direct cooling will result in residual moisture, which can easily lead to microbial growth and spoilage, thus shortening the shelf life.
The cooling equipment consists of a drying chamber and a cooling chamber. It uses a zoned treatment of normal temperature zone, drying zone and cooling zone, and gradually cools and dries by using heat conduction parts and air duct system, and reduces energy consumption by combining steam utilization.
It effectively reduces the moisture content of textured protein, prevents microbial growth, extends shelf life, and reduces energy consumption.
Smart Images

Figure CN224681144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textured protein production technology, specifically a cooling device for textured protein production. Background Technology
[0002] Textured protein is a food ingredient made from processed plant protein that has a structure similar to meat fibers. It is widely used in vegetarian products, sausages, fast food, and other fields. It is produced by using high temperature, high pressure, and high shear force to unfold and re-crosslink the protein molecules, forming a fibrous structure.
[0003] The production temperature of textured soy is relatively high, requiring cooling treatment. Currently, cooling is generally done directly, which results in a high moisture content in the textured soy, making it prone to microbial growth and spoilage, thus shortening its shelf life. Therefore, this utility model proposes a cooling device for textured soy production that can solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a cooling device for the production of textured protein, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a cooling device for producing textured protein, comprising a drying chamber and a cooling chamber through which textured protein passes in sequence, wherein the drying chamber and the cooling chamber are spaced apart, and roller groups for guiding the textured protein are respectively provided at the rear ends of the drying chamber and the cooling chamber.
[0006] The drying chamber has a room temperature zone, a primary drying zone and a secondary drying zone. The cooling chamber has a linear cooling zone. The room temperature zone is connected to the outlet of the textured protein. An air guide pipe is provided in the room temperature zone. An air suction hood is provided at the front end of the air guide pipe. A heat-conducting part is provided in the primary drying zone and connected to the rear end of the air guide pipe. The heat-conducting part can contact the textured protein.
[0007] The secondary drying zone is equipped with several sets of hot air ducts, and the linear cooling zone is equipped with several sets of cold air ducts.
[0008] Preferably, the ambient temperature zone and the primary drying zone are separated by a first ring plate, and the primary drying zone and the secondary drying zone are separated by a second ring plate.
[0009] Preferably, the drying chamber is provided with several sets of exhaust fans at the top of the primary drying zone and the secondary drying zone, and the cooling chamber is provided with several sets of exhaust fans at the top of the linear cooling zone.
[0010] Preferably, the heat-conducting part includes a heat-conducting plate, the heat-conducting plate has an air chamber, the air chamber is connected to an exhaust pipe and a drain pipe, both the exhaust pipe and the drain pipe extend out of the drying chamber, and a negative pressure fan is installed at the outlet of the exhaust pipe.
[0011] Preferably, an isolation cover is provided between the drying chamber and the cooling chamber, and the isolation cover houses the roller assembly.
[0012] Preferably, several sets of hot air ducts are supplied with dry hot air by a heating unit, and several sets of cold air ducts are supplied with dry cold air by a refrigeration unit.
[0013] Preferably, the ambient temperature zone, the primary drying zone, the secondary drying zone, and the linear cooling zone each contain several sets of support rollers, which are used to support the silken protein.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] After production, the textured protein passes through a normal temperature zone, a primary drying zone, a secondary drying zone, and a linear cooling zone in sequence under the drive of an external traction roller. It is pre-cooled in the normal temperature zone, pre-dried in the primary drying zone, and mainly dried in the secondary drying zone. It is then cooled down in the linear cooling zone, which removes most of the internal free moisture, reduces the water content, and makes it less prone to microbial growth and spoilage during storage, thus extending the shelf life.
[0016] When the textured protein passes through the primary drying zone, it comes into contact with the heat-conducting plate and is heated, thus achieving a pre-drying effect. On the one hand, it heats the textured protein, and on the other hand, it utilizes the generated steam to reduce energy consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the drying oven of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the cooling box of this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the heat-conducting part and the air-conducting pipe in this utility model;
[0021] In the diagram: 10. Drying oven; 11. Ambient temperature zone; 111. Air duct; 112. Suction hood; 12. Primary drying zone; 13. Secondary drying zone; 20. Cooling box; 21. Linear cooling zone; 30. Isolation cover; 31. Roller assembly; 40. Exhaust fan; 50. Maintenance door; 60. Idler roller; 70. Heating unit; 71. Hot air duct; 80. Heat-conducting part; 81. Heat-conducting plate; 82. Exhaust pipe; 83. Drain pipe; 90. Refrigeration unit; 91. Cold air duct. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4
[0024] A cooling device for the production of textured protein is provided, which is intended for use in food-grade factories.
[0025] Please see Figure 1 , Figure 2 , Figure 3 The drying chamber 10 has a normal temperature zone 11, a primary drying zone 12, and a secondary drying zone 13. The cooling chamber 20 has a linear cooling zone 21. Both the drying chamber 10 and the cooling chamber 20 are equipped with openable and closable maintenance doors 50 on their sides. The textured protein passes through the drying chamber 10 and the cooling chamber 20 in sequence. After production, the textured protein is driven by external traction rollers to pass through the normal temperature zone 11, the primary drying zone 12, the secondary drying zone 13, and the linear cooling zone 21 in sequence. It is pre-cooled in the normal temperature zone 11, pre-dried in the primary drying zone 12, and mainly dried in the secondary drying zone 13. It is cooled down in the linear cooling zone 21, thus finally obtaining the cooled textured protein. After being cooled down by the movement of the external traction rollers, the textured protein can enter the cutting device for slitting.
[0026] Please see Figure 1 , Figure 2 , Figure 3 The drying chamber 10 and the cooling chamber 20 are respectively equipped with roller groups 31 for guiding the fibrous material. The fibrous material is guided by the roller groups 31 and enters the cooling chamber 20 from the drying chamber 10. The drying chamber 10 and the cooling chamber 20 are distributed at intervals, which can effectively reduce the space occupied.
[0027] Please see Figure 2 , Figure 4 The room temperature zone 11 is connected to the outlet of the textured protein. A gas duct 111 is provided in the room temperature zone 11. A suction hood 112 is provided at the front end of the gas duct 111. A heat-conducting part 80 is provided in the primary drying zone 12 and connected to the rear end of the gas duct 111. The heat-conducting part 80 can contact the textured protein. The heat-conducting part 80 includes a heat-conducting plate 81. The heat-conducting plate 81 has an air chamber. The air chamber is connected to an exhaust pipe 82 and a drain pipe 83. Both the exhaust pipe 82 and the drain pipe 83 extend out of the drying chamber 10. A negative pressure fan is installed at the outlet of the exhaust pipe 82. The negative pressure fan is not shown in the figure.
[0028] Because textured soy is produced under high temperature and high pressure, a large amount of steam is generated during discharge. After production, the textured soy enters the ambient temperature zone 11. Under the action of the negative pressure fan, the suction hood 112 draws in air (at ambient temperature) and steam through the air guide pipe 111 into the air chamber. The air flowing over the textured soy carries away some heat, playing a preliminary cooling role. This prevents the textured soy from shrinking rapidly due to sudden contact with cold air, which could damage the internal structure. The steam entering the air chamber transfers heat to the heat-conducting plate 81. When the textured soy passes through the primary drying zone 12, it comes into contact with the heat-conducting plate 81 and is heated, thus playing a pre-drying role. On the one hand, it can heat the textured soy, and on the other hand, it can utilize the generated steam to reduce energy consumption. After the steam exchanges heat with the heat-conducting plate 81, it condenses into water. The water can enter the collection box along the drain pipe 83, while the negative pressure fan draws in the non-condensable gas and discharges it.
[0029] Please see Figure 2 , Figure 3 The secondary drying zone 13 is equipped with several sets of hot air ducts 71, and the linear cooling zone 21 is equipped with several sets of cold air ducts 91. The hot air ducts 71 are supplied with dry hot air by the heating unit 70, and the cold air ducts 91 are supplied with dry cold air by the refrigeration unit 90. The means by which the heating unit 70 generates dry hot air and the refrigeration unit 90 generates dry cold air are existing technologies, and will not be described in detail here.
[0030] After preheating, the textured protein enters the secondary drying zone 13, where it is reheated by the dry hot air discharged from the hot air duct 71, thereby removing most of the internal free moisture and reducing the water content. At the same time, the heat also further matures and solidifies the protein structure. After the main drying, the textured protein enters the linear cooling zone 21, where it is cooled by the dry cold air discharged from the cold air duct 91. The heat is continuously carried away by the cold air, and the temperature gradually drops to close to room temperature. While cooling, the residual heat and moisture inside the protein continue to diffuse outward and be carried away by the cold air, achieving the final cooling and moisture balance. During storage, it is not easy for microorganisms to grow and deteriorate, thus extending the shelf life.
[0031] Please see Figure 2 The room temperature zone 11 and the primary drying zone 12 are separated by a first ring plate, and the primary drying zone 12 and the secondary drying zone are separated by a second ring plate. The textured protein passes through the center of the first ring plate and the second ring plate, and the first ring plate and the second ring plate act as a separator to reduce heat transfer between the room temperature zone 11, the primary drying zone 12 and the secondary drying zone 13.
[0032] Please see Figure 1The drying chamber 10 has several sets of exhaust fans 40 installed at the top of the primary drying zone 12 and the secondary drying zone 13, and the cooling chamber 20 has several sets of exhaust fans 40 installed at the top of the linear cooling zone 21. Both exhaust fans 40 are connected to exhaust pipes to discharge gas.
[0033] Please see Figure 1 An isolation cover 30 is provided between the drying chamber 10 and the cooling chamber 20. The isolation cover 30 houses the roller assembly 31 and has a maintenance door 50.
[0034] Please see Figure 2 , Figure 3 Several sets of idler rollers 60 are present in the ambient temperature zone 11, the primary drying zone 12, the secondary drying zone 13 and the linear cooling zone 21. The idler rollers 60 are used to support the silk protein.
[0035] 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 cooling device for producing textured soy protein, characterized in that, It includes a drying box (10) and a cooling box (20) through which the textured protein passes in sequence. The drying box (10) and the cooling box (20) are spaced apart, and the rear ends of the drying box (10) and the cooling box (20) are respectively provided with roller groups (31) for guiding the textured protein. The drying oven (10) has a room temperature zone (11), a primary drying zone (12) and a secondary drying zone (13). The cooling box (20) has a linear cooling zone (21). The room temperature zone (11) is connected to the outlet of the textured protein. A gas duct (111) is provided in the room temperature zone (11). An air suction hood (112) is provided at the front end of the gas duct (111). A heat-conducting part (80) is provided in the primary drying zone (12) and connected to the rear end of the gas duct (111). The heat-conducting part (80) can contact the textured protein. The secondary drying zone (13) is equipped with several sets of hot air pipes (71), and the linear cooling zone (21) is equipped with several sets of cold air pipes (91).
2. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, The ambient temperature zone (11) and the primary drying zone (12) are separated by a first ring plate, and the primary drying zone (12) and the secondary drying zone are separated by a second ring plate.
3. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, The drying box (10) has several sets of exhaust fans (40) installed on the top of the primary drying zone (12) and the secondary drying zone (13), and the cooling box (20) has several sets of exhaust fans (40) installed on the top of the linear cooling zone (21).
4. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, The heat-conducting part (80) includes a heat-conducting plate (81), which has an air chamber connected to an exhaust pipe (82) and a drain pipe (83). Both the exhaust pipe (82) and the drain pipe (83) extend out of the drying box (10), and a negative pressure fan is installed at the outlet of the exhaust pipe (82).
5. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, An isolation cover (30) is provided between the drying box (10) and the cooling box (20), and the isolation cover (30) houses the roller assembly (31).
6. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, Several sets of hot air ducts (71) are supplied with dry hot air by heating unit (70), and several sets of cold air ducts (91) are supplied with dry cold air by refrigeration unit (90).
7. The cooling equipment for producing textured soy protein according to claim 1, characterized in that, Each of the ambient temperature zone (11), primary drying zone (12), secondary drying zone (13) and linear cooling zone (21) has several sets of idler rollers (60), which are used to support the silk protein.