Tunnel type liquid nitrogen flash freezer

Abstract

The utility model relates to liquid nitrogen quick freezer technical field more specifically, especially, relates to a tunnel type liquid nitrogen quick freezer, include: lower freezing storehouse, liquid nitrogen pipe, chain conveyer belt, the inside fixed mounting of lower freezing storehouse has liquid nitrogen pipe, just the upper portion of liquid nitrogen pipe even installation has multiple air jet nozzles, chain conveyer belt installs in the upper portion of lower freezing storehouse, and the lower portion position of chain conveyer belt end installs the pivot through the movable mode, the blanking plate welds in the lower portion of pivot, and the lower portion of blanking plate installs the buffer zone through riveting mode, the upper freezing storehouse installs in the upper portion of chain conveyer belt, and the both ends of upper freezing storehouse install the curtain piece through riveting mode, through the improvement on structure, have the safe and steady operation of blanking, improve product processing quality, make it more have practical performance and practical value and so on advantages, to effectively solve the problem and the deficiency in prior art and equipment.

Description

Technical Field

[0001] This utility model relates to the field of liquid nitrogen quick-freezing technology, and more specifically, to a tunnel-type liquid nitrogen quick-freezing machine. Background Technology

[0002] Liquid nitrogen tunnel freezers are ideal for quick-freezing foods such as dumplings, steamed buns, wontons, and shumai because they offer a large-scale, continuous, minimally manned, and large-area industrial production mode, and can be combined with other food production lines to form automated lines.

[0003] However, since dumplings, buns, wontons, shumai, etc. all have pleated edges, these edges become very brittle after quick-freezing. Existing liquid nitrogen quick-freezing machines often drop the food directly into the material basket after quick-freezing, which makes the pleated edges easily break, thus affecting the product processing quality and consequently its practicality.

[0004] In view of this, this paper studies and improves upon the existing problems, and provides a tunnel-type liquid nitrogen quick-freezing machine, aiming to solve the problems and improve its practical value through this technology. Utility Model Content

[0005] The purpose of this invention is to provide a tunnel-type liquid nitrogen quick-freezing machine to solve the problems and deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a tunnel-type liquid nitrogen quick-freezing machine, which is accomplished by the following specific technical means:

[0007] A tunnel-type liquid nitrogen quick-freezing machine includes: a lower freezing chamber, a liquid nitrogen pipe, a chain conveyor belt, a rotating shaft, a discharge plate, a buffer belt, an upper freezing chamber, curtains, a blower, an exhaust pipe, a blower fan, an air inlet, a cover plate, and air nozzles; the liquid nitrogen pipe is fixedly installed inside the lower freezing chamber, and multiple air nozzles are evenly installed above the liquid nitrogen pipe; the chain conveyor belt is installed on the upper part of the lower freezing chamber, and a rotating shaft is movably installed at the lower part of the end of the chain conveyor belt; the discharge plate is welded to the lower part of the rotating shaft, and the discharge plate... A buffer belt is installed at the bottom by riveting; the upper freezing compartment is installed above the chain conveyor belt, and curtains are installed at both ends of the upper freezing compartment by riveting; the blower is fixedly installed on the upper part of the upper freezing compartment by bolts, and six blowers are evenly arranged in a rectangular pattern on the upper part of the upper freezing compartment; the exhaust pipe is welded to the upper part of the upper freezing compartment, and an exhaust fan is installed at the upper right end of the exhaust pipe; the air inlets are respectively opened at the four corners of the upper freezing compartment, and the upper part of the air inlets is covered by a hinge.

[0008] As a further optimization of this technical solution, the material feeding plate of the tunnel-type liquid nitrogen quick-freezing machine of this utility model is made of rectangular stainless steel plate, and the material feeding plate is installed at the end of the chain conveyor belt at a 50-degree angle downward by rotating the shaft.

[0009] As a further optimization of this technical solution, the buffer belt of the tunnel-type liquid nitrogen quick-freezing machine of this utility model is a rectangular structure made of flexible PVC plastic.

[0010] As a further optimization of this technical solution, the liquid nitrogen pipe of the tunnel-type liquid nitrogen quick-freezing machine of this utility model is a comb-shaped structure welded from stainless steel pipes, and the liquid nitrogen pipe is fixedly installed below the chain conveyor belt through the lower freezing chamber.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] 1. This utility model relates to a tunnel-type liquid nitrogen quick-freezing machine. By setting up a feeding plate and a buffer belt, foods with pleated edges, such as dumplings, buns, wontons, and shumai, can be quickly frozen and then slide directly into the feeding frame, avoiding the problem of the pleated edges breaking when falling directly. This further improves the processing quality of the products and makes them more practical.

[0013] 2. This utility model discloses a tunnel-type liquid nitrogen quick-freezing machine. By setting a buffer belt, its flexibility allows it to always form a ramp within the material frame. As more food is added and the material frame needs to be dragged, the position between the feed plate and the material frame changes, causing a significant tilt as it rises to a certain height. At this time, the buffer belt ensures that the food falls smoothly into the material frame without the risk of breaking, thus further improving the usability of the device.

[0014] 3. Through structural improvements to the above-mentioned device, this utility model has the advantages of safe and stable material feeding operation, improved product processing quality, and enhanced practical performance and value, thereby effectively solving the problems and shortcomings of existing technologies and equipment. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the liquid nitrogen tube structure of this utility model;

[0018] Figure 3This is a partially enlarged structural schematic diagram of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A of this utility model;

[0020] Figure 5 This is a schematic diagram of the working structure of the buffer strip of this utility model.

[0021] In the diagram: 1. Lower freezing chamber, 2. Liquid nitrogen pipe, 3. Chain conveyor belt, 4. Rotary shaft, 5. Feeding plate, 6. Buffer belt, 7. Upper freezing chamber, 8. Curtain, 9. Blower, 10. Exhaust pipe, 11. Exhaust fan, 12. Air inlet, 13. Cover plate, 201. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for a tunnel-type liquid nitrogen quick-freezing machine:

[0024] A tunnel-type liquid nitrogen quick-freezing machine includes: a lower freezing chamber 1, a liquid nitrogen pipe 2, a chain conveyor belt 3, a rotating shaft 4, a feeding plate 5, a buffer belt 6, an upper freezing chamber 7, curtains 8, a blower 9, an exhaust pipe 10, an exhaust fan 11, an air inlet 12, a cover plate 13, and air nozzles 201; the liquid nitrogen pipe 2 is fixedly installed inside the lower freezing chamber 1, and multiple air nozzles 201 are evenly installed above the liquid nitrogen pipe 2; the chain conveyor belt 3 is installed on the upper part of the lower freezing chamber 1, and the rotating shaft 4 is movably installed at the lower part of the end of the chain conveyor belt 3; the feeding plate 5 is welded to the lower part of the rotating shaft 4, and... A buffer belt 6 is installed at the lower part of the feed plate 5 by riveting; the upper freezing chamber 7 is installed above the chain conveyor belt 3, and curtains 8 are installed at both ends of the upper freezing chamber 7 by riveting; the blower 9 is fixedly installed on the upper part of the upper freezing chamber 7 by bolts, and six blowers 9 are evenly arranged in a rectangular pattern on the upper part of the upper freezing chamber 7; the exhaust pipe 10 is welded to the upper part of the upper freezing chamber 7, and an exhaust fan 11 is installed at the upper part of the right end of the exhaust pipe 10; the air inlets 12 are respectively opened at the four corners of the upper freezing chamber 7, and the upper part of the air inlets 12 is covered by a cover plate 13 by a hinge.

[0025] Specifically, the feed plate 5 is made of rectangular stainless steel plate, and the feed plate 5 is installed at a 50-degree downward angle at the end of the chain conveyor belt 3 via the rotating shaft 4, and combined with... Figure 5 As shown, the feeding plate 5 can be tilted upwards by dragging the material frame to prevent food from piling up together.

[0026] Specifically, the buffer strip 6 is a rectangular structure made of flexible PVC plastic, and combined with... Figure 5 As shown, when the amount of food falling in needs to be dragged, the position between the feed plate 5 and the feed frame changes, causing a significant tilt as it rises to a certain height. If the food falls, there is a risk of it breaking. However, the extension of the buffer belt 6 ensures that the food falls smoothly into the feed frame without breaking, thus further enhancing the usability of the device.

[0027] Specifically, the liquid nitrogen pipe 2 is a comb-shaped structure welded from stainless steel pipes, and the liquid nitrogen pipe 2 is fixedly installed below the chain conveyor belt 3 through the lower freezing chamber 1. The nozzle 201 on the liquid nitrogen pipe 2 can evenly blow cold nitrogen gas onto the food on the chain conveyor belt 3, and in conjunction with the six blowers 9 set above blowing downwards, the cold air inside can be more evenly distributed, improving the freezing effect.

[0028] Specific implementation steps

[0029] In use, first connect the liquid nitrogen pipe 2 to the liquid nitrogen storage tank pre-installed in the workshop, then connect the exhaust fan 11 to the liquid nitrogen recovery tank pre-installed in the workshop. Then place the material frame at the rear and position the buffer belt 6 inside it. Start the chain conveyor belt 3 to place foods such as dumplings, buns, shumai, and wontons on it. When they enter the lower freezing chamber 1 and the upper freezing chamber 7, they are quickly frozen by liquid nitrogen and then slide down from the feeding plate 5 into the material frame. When the food in the material frame reaches a certain quantity and accumulates, the material frame can be pushed to raise the feeding plate 5 slightly, so that the food is spread out and flattened for better collection. During this process, the buffer belt 6 is always positioned inside the material frame to prevent the food from falling directly and causing damage, thereby further improving the practical performance of the device.

[0030] In summary, this tunnel-type liquid nitrogen quick-freezing machine, by incorporating a feeding plate and a buffer belt, allows foods with pleated edges, such as dumplings, buns, wontons, and shumai, to slide directly into the material frame after quick-freezing, avoiding the problem of breakage at the pleated edges due to direct fall. This further improves the processing quality of the products and enhances their practicality. The buffer belt, with its flexibility, creates a constant ramp within the material frame. Furthermore, as more food is added and the material frame needs to be moved, the position between the feeding plate and the frame changes, causing a significant tilt and rise. The buffer belt ensures that the food falls smoothly into the frame without breaking, further enhancing the device's usability and solving the problems of existing technologies.

[0031] 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 tunnel-type liquid nitrogen quick-freezing machine, comprising: The components are: a lower freezing chamber (1), a liquid nitrogen pipe (2), a chain conveyor belt (3), a rotating shaft (4), a feeding plate (5), a buffer belt (6), an upper freezing chamber (7), a curtain (8), a blower (9), an exhaust pipe (10), a blower (11), an air inlet (12), a cover plate (13), and a jet nozzle (201); characterized in that: a liquid nitrogen pipe (2) is fixedly installed inside the lower freezing chamber (1), and multiple jet nozzles (201) are evenly installed above the liquid nitrogen pipe (2); the chain conveyor belt (3) is installed on the upper part of the lower freezing chamber (1), and a rotating shaft (4) is installed at the lower part of the end of the chain conveyor belt (3) in a movable manner; the feeding plate (5) is welded to the lower part of the rotating shaft (4). The lower part of the feed plate (5) is fitted with a buffer belt (6) by riveting; the upper freezing chamber (7) is installed above the chain conveyor belt (3), and the two ends of the upper freezing chamber (7) are fitted with curtains (8) by riveting; the blower (9) is fixedly installed on the upper part of the upper freezing chamber (7) by bolts, and the blower (9) is evenly arranged in a rectangular pattern on the upper part of the upper freezing chamber (7) in six places; the exhaust pipe (10) is welded to the upper part of the upper freezing chamber (7), and the exhaust fan (11) is installed at the upper part of the right end of the exhaust pipe (10); the air inlet (12) is opened at the four corners of the upper freezing chamber (7), and the upper part of the air inlet (12) is fitted with a cover plate (13) by hinge.

2. The tunnel-type liquid nitrogen quick-freezing machine according to claim 1, characterized in that: The feed plate (5) is made of rectangular stainless steel plate and is installed at the end of the chain conveyor belt (3) at a 50-degree angle downwards via a rotating shaft (4).

3. The tunnel-type liquid nitrogen quick-freezing machine according to claim 1, characterized in that: The buffer strip (6) is a rectangular structure made of flexible PVC plastic.

4. The tunnel-type liquid nitrogen quick-freezing machine according to claim 1, characterized in that: The liquid nitrogen pipe (2) is a comb-shaped structure welded from stainless steel pipes, and the liquid nitrogen pipe (2) is fixedly installed below the chain conveyor belt (3) through the lower freezing chamber (1).

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