Gradient ice crystal regulation and control freeze-dried wonton quick-freezing equipment

Abstract

The invention discloses freeze-dried wonton quick-freezing equipment with gradient ice crystal regulation and control, and relates to the technical field of food quick-freezing treatment. Comprising a quick-freezing chamber, a conveying insertion hole is formed in the top of the quick-freezing chamber, an ultrasonic-assisted freezing device extends into the quick-freezing chamber through the conveying insertion hole, guide holes are symmetrically formed in the side edges of the quick-freezing chamber, and the ultrasonic-assisted freezing device and the guide holes are movably arranged; quick-freezing pipes are symmetrically arranged on the side edges, close to the bottom, of the quick-freezing chamber. Through combined arrangement of the quick-freezing pipe, the slow-freezing pipe I and the slow-freezing assembly, gradient freezing of wontons can be realized. The quick-freezing pipe is used for quickly cooling, the slow-freezing pipe I and the slow-freezing assembly are used for slowly freezing at different degrees, and the gradient freezing mode simulates a natural cooling process, so that an ice crystal forming process is further optimized, large ice crystals are prevented from being generated in the wontons due to sudden temperature drop, and the quick-freezing quality of the wontons is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of food quick-freezing treatment, and specifically to a quick-freezing device for freeze-dried wontons with gradient ice crystal regulation. Background Art

[0002] In the field of food processing, wontons, as a traditional food deeply loved by consumers, their quick-freezing processing technology is crucial for maintaining product quality and extending the shelf life. Traditional wonton quick-freezing devices usually adopt a single rapid freezing method, achieving the freezing of wontons by directly reducing the temperature. However, there are many problems in this way in practical applications. On the one hand, during the rapid freezing process, water molecules inside the wontons quickly crystallize, easily forming large ice crystals. These large ice crystals will damage the cell tissue structure of the wontons, resulting in problems such as poor taste, nutrient loss, and appearance deformation after thawing, seriously affecting the product quality and market competitiveness.

[0003] On the other hand, traditional devices lack the regulation and gradient freezing ability of the freezing process. They cannot flexibly adjust the freezing parameters according to the different specifications, ingredients, and production process requirements of wontons, making it difficult to achieve the best effect in the freezing process. Not only is the freezing efficiency low, but also energy is wasted. At the same time, there is an uneven distribution of cold air in traditional devices, resulting in inconsistent cooling degrees of different parts of the wontons, and phenomena such as local overcooling or insufficient freezing, further affecting the overall freezing quality of the wontons. Summary of the Invention

[0004] Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a quick-freezing device for freeze-dried wontons with gradient ice crystal regulation, which solves the problems mentioned in the above background art.

[0005] Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation, including a quick-freezing chamber. A conveying insertion hole is opened at the top of the quick-freezing chamber, and an ultrasonic-assisted freezing device is arranged inside the quick-freezing chamber through the conveying insertion hole. Guide holes are symmetrically opened on the sides of the quick-freezing chamber, and the ultrasonic-assisted freezing device is movably arranged with the guide holes; Quick-freezing pipes are symmetrically arranged near the bottom on the sides of the quick-freezing chamber, and a first slow-freezing pipe is arranged between the two groups of quick-freezing pipes. A slow-freezing component is arranged inside the quick-freezing chamber and is arranged in parallel above the first slow-freezing pipe; An inlet is opened at one end of the quick-freezing chamber, a freezing cavity is opened in the middle of the quick-freezing chamber, and a conveying component is arranged inside the freezing cavity. The quick-freezing pipes and the first slow-freezing pipe pass through the conveying component and are located at its central position, and the slow-freezing component is located above the conveying component.

[0006] Further, the ultrasonic-assisted freezing device includes an ultrasonic probe and a flexible board. The ultrasonic probes are equidistantly embedded in the flexible board, and the ultrasonic probes are externally connected to a power supply.

[0007] Further, a guide rod is movably arranged through the guide hole. The inner end of the guide rod is fixedly connected to the ultrasonic-assisted freezing device, and the guide rod is fixedly connected to the slow-freezing component.

[0008] Further, the slow-freezing component includes two sets of lifting frames, a second slow-freezing pipe, a sliding block, and a limiting groove. A square hole is opened on the outer side of the quick-freezing chamber. The two sets of lifting frames are symmetrically and fixedly installed on the inner side of the quick-freezing chamber. The limiting groove is opened on the inner side of the lifting frame. The sliding block is movably installed in the limiting groove. A micro driving rod is arranged at the bottom end of the lifting frame, and the micro driving rod is arranged inside the limiting groove. The second slow-freezing pipe is fixedly connected to the sliding block.

[0009] Further, the second slow-freezing pipe is composed of two parallel guide air pipes. The two guide air pipes are connected by a multi-head cold air pipe. One end of the guide air pipe is in a closed state, and a valve is fixedly installed at the other end. A jetting component is arranged on the outer side of the multi-head cold air pipe.

[0010] Further, the jetting component includes a connecting head, an annular movable groove, a rotating nozzle, and a sealing piece. The connecting head is fixedly installed on the outer side of the multi-head cold air pipe and is communicated with the inside of the multi-head cold air pipe. The annular movable groove is opened on the outer side of the connecting head and is close to the bottom end. The rotating nozzle is movably sleeved inside the annular movable groove. The sealing piece is arranged inside the rotating nozzle, and the sealing piece is attached to the bottom end of the connecting head.

[0011] Further, the jetting component further includes a fixed seat, triangular blades, a circular nozzle, a conical nozzle, and a flow collecting hole. The fixed seat is fixed on the inner side wall of the rotating nozzle. The triangular blades are fixedly installed at the bottom end of the fixed seat. The circular nozzle is opened at the bottom end of the rotating nozzle. The flow collecting hole is opened inside the rotating nozzle, and the flow collecting hole is communicated with the circular nozzle.

[0012] Further, a diversion conical surface is opened inside the rotating nozzle, and the conical nozzle is opened on the diversion conical surface.

[0013] Further, the conveying component includes a driving shaft, a mesh belt wheel, and a metal conveying mesh belt. The driving shaft is movably installed inside the quick-freezing chamber. The mesh belt wheels are equidistantly arranged on the outer side of the driving shaft. The metal conveying mesh belt is sleeved on the outer side of the mesh belt wheels.

[0014] Further, diffusion nozzles are opened on both the quick-freezing pipe and the first slow-freezing pipe arranged at the inner bottom of the quick-freezing chamber.

[0015] Beneficial effects The present invention has the following beneficial effects: 1. For the quick-freezing equipment for freeze-dried wontons with gradient ice crystal regulation, through the combined setting of the quick-freezing tube, the first slow-freezing tube, and the slow-freezing assembly, gradient freezing of wontons can be achieved. The quick-freezing tube rapidly cools down, and the first slow-freezing tube and the slow-freezing assembly perform slow freezing to varying degrees. This gradient freezing method simulates the natural cooling process, further optimizing the ice crystal formation process, avoiding the generation of large ice crystals inside the wontons due to sudden temperature drops, and thus improving the quick-freezing quality of wontons; in the slow-freezing assembly, the design of the lifting frame, the micro drive rod, and the sliding block enables the micro drive rod to control the movement of the sliding block in the limit groove, thereby precisely adjusting the height of the second slow-freezing tube and achieving precise control of the temperature and freezing time in the slow-freezing area to adapt to the quick-freezing of wontons with different specifications and requirements.

[0016] 2. For the quick-freezing equipment for freeze-dried wontons with gradient ice crystal regulation, the ultrasonic-assisted freezing device emits ultrasonic waves through the ultrasonic probe. Utilizing the cavitation effect of ultrasonic waves to accelerate the movement of water molecules and the formation of ice crystals, it shortens the freezing time of wontons. At the same time, it refines the ice crystal structure, reduces the damage of ice crystals to the cell tissue of wontons, and then cooperates with the centrifugal spiral air flow to form a vortex flow field surrounding the wontons, eliminating dead corners, ensuring better freezing of wontons, and effectively maintaining the taste, nutrition, and appearance quality of wontons.

[0017] Certainly, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of a quick-freezing equipment for freeze-dried wontons with gradient ice crystal regulation according to the present invention; Figure 2 is for the present invention Figure 1 is an enlarged schematic diagram of the structure of part A in Figure 3 is a side view schematic diagram of the overall structure of the present invention; Figure 4 is a schematic diagram of a part of the structure of the present invention Figure 1 ; Figure 5 is a schematic diagram of a part of the structure of the present invention Figure 2 ; Figure 6 is a schematic diagram of a part of the structure of the present invention Figure 3 ; Figure 7 is a schematic diagram of the structural distribution of the metal conveyor belt, the belt pulley, the first slow-freezing tube, and the second slow-freezing tube in the present invention; Figure 8 is a schematic diagram of a part of the structure of the second slow-freezing tube of the present invention; Figure 9 is a cross-sectional structural schematic diagram of the second slow-freezing tube of the present invention; Figure 10 For the present invention Figure 9 Schematic enlarged view of the structure of part B in the present invention; Figure 11 Schematic connection diagram of the rotating nozzle and the connector structure of the present invention.

[0019] In the figure, 1, quick-freezing chamber; 2, feed inlet; 3, drive shaft; 4, quick-freezing pipe; 5, first slow-freezing pipe; 6, ultrasonic-assisted freezing device; 7, conveying insertion hole; 8, guide rod; 9, guide hole; 10, lifting frame; 11, second slow-freezing pipe; 12, metal conveyor belt; 13, freezing chamber; 14, multi-head cold air pipe; 15, valve; 16, rotating nozzle; 17, belt pulley; 18, diffuser nozzle; 19, sliding block; 20, limiting groove; 21, flexible plate; 22, connector; 23, circular nozzle; 24, conical nozzle; 25, diversion conical surface; 26, flow-collecting hole; 27, fixed seat; 28, triangular blade; 29, annular movable groove; 30, sealing piece Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Please refer to Figure 1-11 , an embodiment of the present invention provides a technical solution: a quick-freezing device for freeze-dried wontons with gradient ice crystal regulation, including a quick-freezing chamber 1. A conveying insertion hole 7 is opened at the top of the quick-freezing chamber 1. An ultrasonic-assisted freezing device 6 is arranged inside the quick-freezing chamber 1 through the conveying insertion hole 7. Guide holes 9 are symmetrically opened on the side of the quick-freezing chamber 1, and the ultrasonic-assisted freezing device 6 is movably arranged with the guide holes 9; Quick-freezing pipes 4 are symmetrically arranged near the bottom of the side of the quick-freezing chamber 1. A first slow-freezing pipe 5 is arranged between the two groups of quick-freezing pipes 4. A slow-freezing assembly is arranged inside the quick-freezing chamber 1 and is arranged in parallel above the first slow-freezing pipe 5; One end of the quick-freezing chamber 1 is provided with a feed inlet 2. A freezing chamber 13 is provided in the middle of the quick-freezing chamber 1. A conveying assembly is arranged inside the freezing chamber 13. Among them, the quick-freezing pipe 4 and the first slow-freezing pipe 5 pass through the conveying assembly and are located at its central position. The slow-freezing assembly is located above the conveying assembly. Wontons enter through the feed inlet 2 and are discharged through the discharge outlet at the other end of the freezing chamber after quick-freezing treatment.

[0023] By providing a slow-moving assembly to cooperate with the first slow-freezing pipe 5, freeze-drying of the wontons staying on the surface of the metal conveyor belt 12 is achieved.

[0024] When the device performs quick-freezing of wontons, first, the freezing chamber 13 needs to be divided into three temperature control zones, which are set in the order of "quick-freezing - slow-freezing - quick-freezing" from left to right. The number of quick-freezing pipes 4 is two groups, symmetrically arranged about the longitudinal center line of the quick-freezing chamber 1. The first slow-freezing pipe 5 and the slow-freezing assembly are arranged between the two groups of quick-freezing pipes 4. It should be noted that in the quick-freezing pipe 4, the first slow-freezing pipe 5, and the slow-freezing assembly, super-low-temperature air-cooled -50°C strong wind circulation is passed to achieve rapid cooling. The slow-freezing assembly distributed in the slow-freezing area adjusts the refrigerant flow rate through the valve 15 to reduce the refrigeration power. Among them, the effects corresponding to the three temperature control zones: The first stage of quick-freezing: Goal: Quickly pass through the ice crystal nucleation zone of -1°C to -5°C, form a large number of small ice crystal nuclei, and avoid water migration.

[0025] The second stage of slow-freezing: Goal: Reduce the cooling rate in the range of -5°C to -15°C by 0.5~1°C / s, extend the ice crystal growth time, and promote the combination of small ice crystals into large particles; During the slow-freezing stage, by cooperating with the ultrasonic-assisted freezing device 6, ultrasonic waves of 20~40kHz are applied to the wontons that have undergone the first-stage quick-freezing treatment to promote the combination of ice crystals and accelerate the formation of large-particle ice crystals.

[0026] The third stage of quick-freezing: Goal: Quickly cool down to below -40°C again, fix the ice crystal structure, and prevent the secondary growth of ice crystals from destroying the pores.

[0027] Specifically, the ultrasonic-assisted freezing device 6 includes an ultrasonic probe and a flexible plate 21. The ultrasonic probes are equidistantly embedded on the flexible plate 21. Among them, the ultrasonic probes are externally connected to a power supply, and the adjustment of the sound waves is achieved by adjusting the input voltage or current of the ultrasonic generator. The specific principle is not elaborated here. It can also cooperate with the ultrasonic-assisted freezing device 6 in this device to achieve the function, which is common knowledge in this field.

[0028] In this embodiment, an ultrasonic-assisted freezing device 6 is provided to apply ultrasonic waves to the quick-frozen wontons, promote the merging of ice crystals, accelerate the formation of large-sized ice crystals, and ensure the rapid freezing of the filling inside the wontons.

[0029] Specifically, a guide rod 8 is movably arranged through the guide hole 9. The inner end of the guide rod 8 is fixedly connected to the ultrasonic-assisted freezing device 6, and the guide rod 8 is fixedly connected to the slow-freezing assembly.

[0030] In this embodiment, a guide rod 8 is arranged inside the guide hole 9 to guide the ultrasonic-assisted freezing device 6. One end of the guide rod 8 is fixedly connected to the slow-freezing assembly. When the slow-freezing assembly moves up and down, it will drive the ultrasonic-assisted freezing device 6 and the guide rod 8 into the freezing chamber 13, thereby enabling the ultrasonic-assisted freezing device 6 to perform acoustic treatment on the wontons. The specific lifting process of the slow-freezing assembly is described in detail later.

[0031] Specifically, the slow-freezing assembly includes two lifting frames 10, a second slow-freezing pipe 11, a sliding block 19, and a limiting groove 20. A square hole is opened on the outer side of the quick-freezing chamber 1. The two lifting frames 10 are symmetrically and fixedly installed inside the quick-freezing chamber 1. The limiting groove 20 is opened inside the lifting frame 10. The sliding block 19 is movably installed inside the limiting groove 20. A micro drive rod is arranged at the bottom end of the lifting frame 10. The micro drive rod is arranged inside the limiting groove 20. The second slow-freezing pipe 11 is fixedly connected to the sliding block 19; The micro drive rod arranged inside the limiting groove 20 can be an electric telescopic rod. By giving an electric signal to the electric telescopic rod, the control of its telescopic state can be realized. The output end of the electric telescopic rod is fixedly connected to the bottom end of the sliding block 19. When the electric telescopic rod moves, it will drive the entire slow-freezing assembly to move up and down. When the telescopic rod drives the slow-freezing assembly to move downward, due to the connection between the guide rod 8 and the second slow-freezing pipe 11, the guide rod 8 will move along the direction of the guide hole 9 under the drive of the second slow-freezing pipe 11, thereby realizing the transportation of the ultrasonic-assisted freezing device 6. It should be noted that the distance between the slow-freezing assembly and the metal conveyor belt 12 can be controlled by the telescopic length of the electric telescopic rod. Due to the limitation of the transportation jack 7 on the ultrasonic-assisted freezing device 6, the ultrasonic-assisted freezing device 6 entering the freezing chamber 13 is parallel to the inner top of the freezing chamber 13, so that the ultrasonic-assisted freezing device 6 is directly opposite to the wontons in the slow-freezing area, realizing the promotion of the arrangement of ice crystals inside the wontons.

[0032] The second slow-freezing pipe 11 is composed of two parallel air guide pipes. The two air guide pipes are connected by a multi-head cold air pipe 14. One end of the air guide pipe is in a closed state, and the other end is fixedly installed with a valve 15. A jet component is arranged on the outer side of the multi-head cold air pipe 14; Such as Figure 11As shown, the jet component includes a connector 22, an annular movable groove 29, a rotary nozzle 16, and a sealing piece 30. The connector 22 is fixedly installed on the outer side of the multi-head cold air pipe 14 and is communicated with the inside of the multi-head cold air pipe 14. The annular movable groove 29 is opened on the outer side of the connector 22 and near the bottom end. The rotary nozzle 16 is movably sleeved on the inner side of the annular movable groove 29. The sealing piece 30 is arranged on the inner side of the rotary nozzle 16, and the sealing piece 30 is in fit with the bottom end of the connector 22. The jet component further includes a fixed seat 27, triangular blades 28, a circular nozzle 23, a conical nozzle 24, and a flow collecting hole 26. The fixed seat 27 is fixed on the inner side wall of the rotary nozzle 16. The triangular blades 28 are fixedly installed at the bottom end of the fixed seat 27. The circular nozzle 23 is opened at the bottom end of the rotary nozzle 16. The flow collecting hole 26 is opened on the inner side of the rotary nozzle 16, and the flow collecting hole 26 is communicated with the circular nozzle 23. A guiding conical surface 25 is opened on the inner side of the rotary nozzle 16, and the conical nozzle 24 is opened on the guiding conical surface 25.

[0033] In this implementation, by inputting cold air into the air inlet end of the valve 15 and then controlling the opening and closing of the valve 15, the transportation of cold air is realized. The cold air is transported through the slow freezing pipe II 11, branches into the multi-head cold air pipe 14 and is ejected through the jet component, realizing the slow freezing of the wontons that have undergone the first-stage quick freezing. As Figure 11 shown, the cold air transported through the multi-head cold air pipe 14 is transported through the connector 22 and ejected through the rotary nozzle 16. When the rotary nozzle 16 transports the cold air, it sprays circumferentially and equidistantly along the circular nozzle 23 opened at the bottom end of the rotary nozzle 16. Part of the gas is ejected through the conical nozzle 24 and acts on the wontons. The rotary nozzle 16 rotates automatically under the action of the internal air flow. Therefore, the cold air flow ejected through the circular nozzle 23 acts on the wontons in a rotating state, thus ensuring that the cold air blown onto the wontons can provide stable conditions for the formation of ice crystals inside them. Compared with the direct blowing air flow, the direct blowing air flow easily causes local supercooling on the surface of the wontons, such as rapid freezing at the edges, while the central area freezes lagging due to greater thermal resistance, resulting in uneven distribution of ice crystal sizes. The spiral air flow forms a vortex flow field surrounding the wontons through centrifugal force, eliminating dead corners and ensuring better freezing of the wontons. The generation of the spiral air flow will be specifically described below. When the cold air flow conveyed by the multi-head cold air pipe 14 enters the connector 22, the air flow will blow the triangular blades 28. At this time, the triangular blades 28 generate a self-rotating force under the action of the air flow. Since the rotary nozzle 16 is movably connected to the annular movable groove 29 on the outer side of the connector 22 and lubricating oil is coated at the connection, the rotary nozzle 16 rotates self-actively under the action of the triangular blades 28. When the air flow passes through the triangular blades 28, part of the air flow will diffuse to the confluent holes 26 along the conical surface of the guiding conical surface 25. Since the confluent holes 26 are communicated with the circular nozzle 23, part of the cold air will be discharged through the circular nozzle 23. Since the rotary nozzle 16 rotates self-actively, the cold air discharged through the circular nozzle 23 will rotate, forming a spiral cold air flow acting on the wontons. Among them, several groups of the multi-head cold air pipes 14 and the rotary nozzles 16 are arranged at equal circumferential intervals. Part of the cold air will be discharged through the conical nozzle 24, and the diffusion radius of the cold air discharged through the conical nozzle 24 increases from small to large.

[0034] Specifically, the conveying assembly includes a driving shaft 3, a mesh belt pulley 17, and a metal conveyor mesh belt 12. The driving shaft 3 is movably installed inside the quick-freezing chamber 1. The mesh belt pulleys 17 are arranged at equal intervals on the outer side of the driving shaft 3. The metal conveyor mesh belt 12 is sleeved on the outer side of the mesh belt pulleys 17. Diffusion nozzles 18 are provided on the driving shaft 3, the quick-freezing pipes 4, and the first slow-freezing pipes 5 provided inside the bottom of the quick-freezing chamber 1.

[0035] In this implementation plan, the conveying assembly is provided to uniformly convey the wontons to be quick-frozen to the "quick-freezing - slow-freezing - quick-freezing" area for quick-freezing. It should be noted that the driving shaft 3 is externally connected to a driving source, and the driving source can be a motor. When the driving shaft 3 rotates, it will drive the mesh belt pulley 17 to rotate. Since the mesh belt pulley 17 is clamped and sleeved with the metal conveyor mesh belt 12, when the mesh belt pulley 17 rotates, it will drive the metal conveyor mesh belt 12 to rotate, thereby realizing the conveyance of the wontons. Among them, the layout of the quick-freezing pipes 4 and the first slow-freezing pipes 5 provided inside the bottom of the quick-freezing chamber 1 is the same as that of the slow-freezing assembly, and both are composed of two groups of symmetric air guide pipes and multi-head cold air pipes 14 connected. The only difference is that the diffusion nozzles 18 are provided on the top surface of the multi-head cold air pipes 14, and the air guide pipes are also connected and controlled by valves 15 to convey the cold air. The cold air diffuses in a conical shape through the diffusion nozzles 18 and passes through the metal conveyor mesh belt 12 to cool the wontons staying on the surface of the metal conveyor mesh belt 12.

[0036] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0037] The preferred embodiments of the present invention disclosed above are only used to assist in the description of the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation, comprising a quick-freezing chamber (1), characterized in that: A conveying jack (7) is provided at the top of the quick-freezing chamber (1), and an ultrasonic-assisted freezing device (6) is arranged inside the quick-freezing chamber (1) through the conveying jack (7). Guide holes (9) are symmetrically provided on the side of the quick-freezing chamber (1), and the ultrasonic-assisted freezing device (6) is movably arranged with the guide holes (9). Quick-freezing pipes (4) are symmetrically arranged near the bottom on the side of the quick-freezing chamber (1). A first slow-freezing pipe (5) is arranged between the two groups of quick-freezing pipes (4). A slow-freezing assembly is arranged inside the quick-freezing chamber (1) and is arranged in parallel above the first slow-freezing pipe (5). An inlet (2) is provided at one end of the quick-freezing chamber (1), and a freezing chamber (13) is provided in the middle of the quick-freezing chamber (1). A conveying assembly is arranged inside the freezing chamber (13). The quick-freezing pipes (4) and the first slow-freezing pipe (5) pass through the conveying assembly and are located at its central position. The slow-freezing assembly is located above the conveying assembly.

2. The quick-freezing equipment for freeze-dried wontons with gradient ice crystal regulation according to claim 1, wherein: The ultrasonic-assisted freezing device (6) includes an ultrasonic probe and a flexible plate (21). The ultrasonic probes are equidistantly embedded on the flexible plate (21), and the ultrasonic probes are externally connected to a power supply.

3. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 1, characterized in that: A guide rod (8) is movably arranged through the guide hole (9). The inner end of the guide rod (8) is fixedly connected to the ultrasonic-assisted freezing device (6), and the guide rod (8) is fixedly connected to the slow-freezing assembly.

4. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 1, characterized in that: The slow-freezing assembly includes two lifting frames (10), a second slow-freezing pipe (11), a sliding block (19), and a limiting groove (20). Square holes are provided on the outside of the quick-freezing chamber (1). The two groups of lifting frames (10) are symmetrically and fixedly installed inside the quick-freezing chamber (1). The limiting groove (20) is provided inside the lifting frame (10). The sliding block (19) is movably installed inside the limiting groove (20). A micro driving rod is arranged at the bottom end of the lifting frame (10), and the micro driving rod is arranged inside the limiting groove (20). The second slow-freezing pipe (11) is fixedly connected to the sliding block (19).

5. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 4, characterized in that: The second slow-freezing pipe (11) is composed of two parallel air guide pipes. The two air guide pipes are connected by a multi-head cold air pipe (14). One end of the air guide pipe is in a closed state, and a valve (15) is fixedly installed at the other end. A jetting assembly is arranged on the outside of the multi-head cold air pipe (14).

6. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 5, characterized in that: The jetting assembly includes a connecting head (22), an annular movable groove (29), a rotating nozzle (16), and a sealing piece (30). The connecting head (22) is fixedly installed on the outside of the multi-head cold air pipe (14) and is communicated with the inside of the multi-head cold air pipe (14). The annular movable groove (29) is provided on the outside of the connecting head (22) and is close to the bottom end. The rotating nozzle (16) is movably sleeved inside the annular movable groove (29). The sealing piece (30) is arranged inside the rotating nozzle (16), and the sealing piece (30) is attached to the bottom end of the connecting head (22).

7. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 6, characterized in that: The jet component further includes a fixed seat (27), triangular vanes (28), a circular nozzle (23), a conical nozzle (24), and a flow collecting hole (26). The fixed seat (27) is fixed to the inner side wall of the rotary nozzle (16). The triangular vanes (28) are fixedly installed at the bottom end of the fixed seat (27). The circular nozzle (23) is formed in the bottom end of the rotary nozzle (16). The flow collecting hole (26) is formed in the inside of the rotary nozzle (16), and the flow collecting hole (26) is communicated with the circular nozzle (23).

8. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 7, characterized in that: A guiding conical surface (25) is formed in the inside of the rotary nozzle (16), and the conical nozzle (24) is formed on the guiding conical surface (25).

9. A quick-freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 1, characterized in that: The conveying component includes a driving shaft (3), a mesh belt pulley (17), and a metal conveyor mesh belt (12). The driving shaft (3) is movably installed inside the quick-freezing chamber (1). The mesh belt pulleys (17) are arranged at equal intervals on the outer side of the driving shaft (3). The metal conveyor mesh belt (12) is sleeved on the outer side of the mesh belt pulleys (17).

10. A rapid freezing device for freeze-dried wontons with gradient ice crystal regulation according to claim 1, characterized in that: Diffusion nozzles (18) are formed in both the quick-freezing pipe (4) and the first slow-freezing pipe (5) arranged inside the bottom of the quick-freezing chamber (1).

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