A spiral freezer for quick-frozen food

Abstract

This application discloses a spiral quick-freezing device for quick-frozen foods, relating to the technical field of quick-frozen food processing. It includes a quick-freezing chamber, a condensing device, a spiral conveyor, a drying device, and a separator. The quick-freezing chamber has a quick-freezing space inside, with an inlet and an outlet on both sides. The condensing device creates cold air circulation within the quick-freezing space. The spiral conveyor has an inlet section and an outlet section at its two ends. The drying device includes a cover and a fan. The cover forms a channel above the inlet section, with one end of the channel communicating with the inlet. The fan is located at one end of the channel and blows air into it. The separator is located within the channel and includes a height limit plate and multiple separators. This application can effectively remove excess moisture from the surface of quick-frozen foods before quick-freezing and effectively separate the foods, thereby effectively improving the quick-freezing effect.

Description

Technical Field

[0001] This application relates to the technical field of quick-frozen food processing, and in particular to a spiral quick-freezing device for quick-frozen foods. Background Technology

[0002] Frozen foods refer to various staple foods made primarily from rice, flour, and grains, with meat and vegetables as secondary ingredients. These foods are processed into various cooked or uncooked main dishes, then immediately frozen using a quick-freezing process, allowing for transportation, storage, and sale under frozen conditions. Examples include frozen buns, frozen dumplings, frozen glutinous rice balls, frozen steamed buns, twisted rolls, and spring rolls. Among these, seafood-flavored hot pot balls are particularly popular due to their delicious taste and unique flavor.

[0003] During the production and processing of frozen foods, they need to go through cooking, cooling and quick-freezing in sequence before being vacuum-packed and sent out for sale. Frozen foods are usually frozen using spiral quick-freezing equipment, which allows them to be rapidly cooled and frozen after reaching a certain temperature, preserving their taste and quality and facilitating long-term storage.

[0004] However, during the process of transporting large quantities of frozen foods into spiral quick-freezing equipment for quick-freezing, excessive moisture on the surface of the frozen foods can cause them to stick together after subsequent quick-freezing. Furthermore, the parts of the frozen foods that come into contact with each other are less effectively frozen, which can also affect the quick-freezing effect of the frozen foods.

[0005] Therefore, there is an urgent need for a spiral quick-freezing device that can effectively improve the quick-freezing effect of frozen foods. Summary of the Invention

[0006] This application provides a spiral quick-freezing device for quick-frozen foods, which can effectively remove excess moisture from the surface of quick-frozen foods and effectively separate quick-frozen foods before quick-freezing, thereby effectively improving the quick-freezing effect of quick-frozen foods.

[0007] This application provides a spiral quick-freezing device for quick-frozen foods, which adopts the following technical solution:

[0008] A spiral quick-freezing device for quick-frozen foods includes a quick-freezing chamber, a condensing device, a spiral conveying device, a drying device, and a partition device.

[0009] The quick-freezing chamber has a quick-freezing space inside, and its two sides are respectively provided with a feed inlet and a discharge outlet that communicate with the quick-freezing space.

[0010] The condensing device is installed in the quick-freezing space, and it generates cold air circulation in the quick-freezing space;

[0011] The spiral conveyor is installed in the quick-freezing space, with a feeding section and a discharging section at its two ends, the feeding section extending out of the feeding port and the discharging section extending out of the discharging port respectively;

[0012] The drying device is located on the side of the quick-freezing chamber where the feed inlet is located, and includes a cover and a fan; the cover is located above the feed section, and a channel is formed below the cover above the feed section, with one end of the channel communicating with the feed inlet; the fan is located at the end of the channel near the feed inlet, and blows air towards the end of the channel away from the feed inlet;

[0013] The partition device is disposed above the feeding section and in the channel, and includes a height limit plate and multiple partitions; a space for a single layer of quick-frozen food is formed between the height limit plate and the feeding section, and the partitions are located on the side of the height limit plate near the feeding port, and a space for a single quick-frozen food is formed between adjacent partitions.

[0014] By adopting the above technical solution, before frozen food is fed into the quick-freezing space, the height limit plate will first limit the height of the frozen food on the feeding section, allowing single-layer frozen food to pass through, reducing the probability of frozen food stacking in and affecting the quick-freezing effect; then, multiple separators will separate the frozen food that is stuck together, allowing individual frozen food to pass through, reducing the probability of frozen food sticking in and affecting the quick-freezing effect; at the same time, the cover effectively protects the frozen food transported on the feeding section, preventing frozen food from falling off the feeding section due to the operation of the separator, and guides the direction of the fan blowing air, effectively removing excess moisture from the surface of the frozen food, thereby effectively improving the quick-freezing effect of the frozen food.

[0015] Optionally, the cover is flared outwards towards the feed inlet, and the width of the channel at the height limit plate is greater than the width of the end of the channel away from the feed inlet.

[0016] By adopting the above technical solution, the space for transporting frozen food in the channel gradually increases, which can effectively reduce the probability of frozen food accumulating and blocking due to reduced feeding efficiency during the process of passing through the interval device, and improve the stability and reliability of frozen food under the drying interval before it is transported into the quick-freezing space.

[0017] Optionally, the cover has two clearance spaces on the side of the height limiting plate away from the feed inlet, and the two clearance spaces are located on both sides of the channel and above the feed section.

[0018] By adopting the above technical solution, the clearance space can provide temporary space for frozen foods that cannot continue to move forward after being restricted by the height limit plate. This can effectively reduce the probability of frozen foods accumulating and blocking in front of the height limit plate, affecting the quality of frozen foods, or even affecting the subsequent transportation and feeding of frozen foods.

[0019] Optionally, the height limit plate is movably connected to the cover, and the distance between the height limit plate and the feeding section changes during the movement of the height limit plate.

[0020] By adopting the above technical solution, staff can easily adjust the height of the height limit board according to the size of the frozen food, thus adapting it to more types of frozen food.

[0021] Optionally, the spacing device further includes a plurality of separation components, and the separation components are located between the height limiting plate and the separator;

[0022] The separation assembly includes a rotating rod and multiple separating components; the rotating rod is rotatably connected to the cover, and its rotation axis is horizontal and perpendicular to the feeding direction of the feeding section; the separating components are disposed on the outside of the rotating rod, and there is a clearance opening between two adjacent separating components along the axis of the rotating rod for quick-frozen food to pass through, and the separating components have separation parts on both sides for separating quick-frozen food.

[0023] By adopting the above technical solution, the separation component can initially separate frozen foods transported in a single layer, reduce large-scale adhesion between frozen foods, and facilitate subsequent separators to further separate the adhered frozen foods.

[0024] Optionally, the separation component is movably connected to the cover, its direction of movement is parallel to the direction of movement of the height restriction plate, and it moves synchronously with the height restriction plate.

[0025] By adopting the above technical solution, the height of the separation component can be adjusted simultaneously by adjusting the height of the height limit plate. This not only facilitates operation by staff but also further improves the adaptability of the separation device to different frozen foods.

[0026] Optionally, the separation component further includes a plurality of movable parts, and the plurality of movable parts correspond one-to-one with the plurality of separation parts;

[0027] The separating component is rotatably connected to the rotating rod, and its rotation axis is the same as its own extension direction and perpendicular to the rotation axis of the rotating rod.

[0028] The movable component is movably disposed inside the rotating rod, and its direction of movement is the same as the rotation axis of the corresponding separating component;

[0029] The movable component is linked to the corresponding separating component, and during its movement relative to the rotating rod, it drives the separating component to rotate relative to the rotating rod.

[0030] When the movable part moves to its limit position away from the axis of the rotating rod, the separating part rotates to a state for separating frozen food; when the movable part moves to its limit position towards the axis of the rotating rod, the separating part rotates to a state where the rotating rod rotates due to the air blown by the fan.

[0031] By adopting the above technical solution, during the rotation of the rotating rod, the separating component at the top can be driven to rotate by the force of the fan blowing the rotating rod, while the separating component at the bottom can effectively achieve the initial separation effect on the frozen food being transported. At the same time, during the rotation and switching state of the separating component relative to the rotating rod, it can drive the frozen food in contact with it to be transported in a staggered manner, speeding up the transport speed of frozen food on one side while slowing down the transport speed of frozen food on the other side, thereby effectively reducing the probability of frozen food sticking together again after initial separation.

[0032] Optionally, the separator is movably connected to the cover, and the spacing between adjacent separators changes during the movement of the separator.

[0033] By adopting the above technical solution, staff can easily adjust the spacing between the dividers according to the size of the frozen food, thus adapting to a wider variety of frozen foods.

[0034] Optionally, the spacing device further includes a plurality of rotating members, and the plurality of rotating members correspond one-to-one with the plurality of separating members;

[0035] The rotating component is rotatably mounted on the separator, with its rotation axis vertical and its outer side in contact with the frozen food.

[0036] By adopting the above technical solution, during the process of transporting frozen food between adjacent separators, it will drive the rotating parts in contact with it to rotate. The rotation of the rotating parts will slow down the transport of frozen food between another adjacent separator, thereby enabling staggered and spaced transport of frozen food, and further reducing the probability of frozen food sticking together again after being separated.

[0037] Optionally, the plurality of separators are arranged in multiple rows along the feeding direction of the feeding section, and the plurality of separators in adjacent rows are staggered along the feeding direction of the feeding section.

[0038] By adopting the above technical solution, the separation effect of multiple separators on frozen foods can be effectively improved, and the effect of transporting frozen foods through staggered intervals can be further improved.

[0039] In summary, this application includes at least one of the following beneficial effects:

[0040] 1. It can effectively remove excess moisture from the surface of frozen food and effectively separate frozen food before quick-freezing, thereby effectively improving the quick-freezing effect of frozen food;

[0041] 2. It enables frozen foods to be separated gradually, improving the reliability and stability of separating frozen foods;

[0042] 3. It enables frozen foods to be transported separately and at intervals after separation, reducing the probability of frozen foods sticking together again later;

[0043] 4. It can be adapted to a variety of frozen foods, making it convenient for staff to handle them according to their size, shape, etc.

[0044] 5. It can reduce the impact of separating frozen foods on the transportation and feeding of frozen foods, and effectively reduce the probability of stacking and blockage during the separation of frozen foods. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of a spiral quick-freezing device for quick-frozen food according to an embodiment of this application;

[0046] Figure 2 This is a schematic diagram of the internal structure of a spiral quick-freezing device for quick-frozen food according to an embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the internal structure of the cover in an embodiment of this application;

[0048] Figure 4 This is a partial cross-sectional view of the feeding section of a spiral quick-freezing device for quick-frozen food according to an embodiment of this application;

[0049] Figure 5 This is a cross-sectional view of the separated components in an embodiment of this application;

[0050] Figure 6 This is a schematic diagram of the drying device and the interval device in the embodiments of this application (feeding section omitted).

[0051] Explanation of reference numerals in the attached drawings: 1. Quick-freezing chamber; 11. Quick-freezing space; 12. Feed inlet; 13. Discharge outlet; 2. Condensation device; 3. Screw conveyor device; 31. Feeding section; 32. Discharge section; 4. Drying device; 41. Cover; 411. Channel; 412. Groove; 413. Clearance space; 42. Fan; 5. Spacing device; 51. Height limit plate; 52. Separation assembly; 521. Rotating rod; 522. Separating component; 5221. Separation section; 523. Moving component; 524. Clearance port; 53. Divider; 54. Rotating component. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0053] This application discloses a spiral quick-freezing device for quick-frozen foods, used to quick-freeze cooked and cooled quick-frozen foods (such as seafood-flavored hot pot balls).

[0054] Reference Figure 1 and Figure 2 The spiral quick-freezing equipment includes a quick-freezing chamber 1 for quick-freezing food, a condensing device 2 for generating cold air to quick-freeze the food, a spiral conveying device 3 for transporting the food along a spiral trajectory to ensure uniform quick-freezing, a drying device 4 for removing surface moisture from the food, and a spacer device 5 for preventing the food from sticking together.

[0055] The quick-freezing chamber 1 has a rectangular parallelepiped structure. Inside, there is a rectangular quick-freezing space 11 for quick-freezing food. At both ends along its length, there are inlet 12 and outlet 13 for quick-freezing food to enter and exit the quick-freezing space 11. In this embodiment, it is preferable that the inlet 12 and outlet 13 are aligned along the length of the quick-freezing chamber 1.

[0056] The spiral conveyor 3 is fixedly installed inside the quick-freezing chamber 1, and its entire structure is located in the quick-freezing space 11. Its two ends extend from the inlet 12 and outlet 13 respectively, forming a feeding section and an outlet section 32. In this embodiment, the spiral conveyor 3 preferably has a double-spiral structure, and the feeding section and outlet section 32 transport the quick-frozen food in directions parallel to the length of the quick-freezing chamber 1. Since the spiral conveyor 3 described above is existing technology in the field, it will not be elaborated upon here, and only a brief representation is given in the accompanying drawings.

[0057] The condensing device 2 is fixedly installed inside the quick-freezing chamber 1, and is centrally located along the length of the quick-freezing space 11. The spiral conveyor device 3 is symmetrically distributed on one side of the condensing device 2 relative to it. When the condensing device 2 is running, it generates and blows out low-temperature gas, allowing the low-temperature gas to circulate fully and evenly in the quick-freezing space 11, thus achieving a uniform and thorough quick-freezing effect on the quick-frozen food transported on the spiral conveyor device 3. In this embodiment, since the condensing device 2 with the above-mentioned functions is prior art in the art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0058] Reference Figure 2 and Figure 3The drying device 4 and the spacer device 5 are both installed on the side of the quick-freezing chamber 1 near the feed inlet 12. Before the quick-frozen food enters the quick-freezing space 11 through the feed inlet 12 to start quick-freezing, they remove excess moisture from the surface of the quick-frozen food and keep the quick-frozen food at a certain interval during transportation, reducing the probability that the quick-freezing effect will be affected by the sticking of the quick-frozen food.

[0059] Reference Figure 4 and Figure 5 The drying device 4 includes a cover 41 for protecting the frozen food transported on the feeding section 31 and a blower 42 for blowing air to remove excess moisture from the surface of the frozen food.

[0060] Reference Figure 3 and Figure 4 The cover 41 has a rectangular parallelepiped structure. One end of its length is fixedly connected to the outside of the quick-freezing chamber 1 and is located above the feeding section 31. Its length is parallel to the feeding direction of the feeding section 31. The bottom of the cover 41 has a channel 411 for transporting quick-frozen food on the feeding section 31. One end of the channel 411 is connected to the inlet 12, and the other end is for the quick-frozen food transported on the feeding section to enter.

[0061] The end of the cover 41 near the feed inlet 12 has a groove 412 formed above the channel 411 for mounting the fan 42, and the groove 412 communicates with the channel 411 below it; the fan 42 is fixedly installed on the outside of the quick-freezing chamber 1, and blows air away from the quick-freezing chamber 1, and the air flows along the channel 411 away from the feed inlet 12, effectively removing excess moisture from the surface of the quick-frozen food transported into the channel 411. In this embodiment, since the fan 42 with the above-mentioned functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0062] Reference Figure 4 and Figure 6 The separating device is installed based on the cover 41, in the channel 411 and above the feeding section 31. Since the efficiency of frozen food transportation will decrease during the process of separating the frozen food transported in the feeding section, to reduce the probability of frozen food accumulating and clogging in the channel 411 due to the reduced transportation efficiency, it is preferable that the cover 41 is flared towards the inlet 12, that is, the width of the channel 411 near the inlet 12 is greater than the width of the channel 411 away from the inlet 12, and the separating device is located in the area of ​​the channel 411 where the width increases; and preferably, the end of the cover 41 away from the inlet 12 is also flared, facilitating the entry of frozen food transported in the feeding section into the area of ​​the channel 411 with a smaller width.

[0063] Reference Figure 3 and Figure 6Furthermore, in order to further reduce the probability that frozen food will accumulate and blockage due to the operation of the separator, affecting the quality of frozen food or even causing frozen food to backflow, it is preferable that the end of the cover 41 away from the feed inlet 12 has a clearance space 413 on both sides of its width direction for frozen food to temporarily stay.

[0064] The two clearance spaces 413 are located on both sides of the end of the channel 411 away from the feeding section 31, and the end of the clearance space 413 near the feeding port 12 is connected to the area in the channel 411 where the width has increased, so that frozen food that cannot pass through in time due to the operation of the separation device can enter the clearance space 413 to stay temporarily and wait for subsequent transportation.

[0065] Reference Figure 4 and Figure 6 The partition device 5 includes a height limit plate 51 for restricting the single-layer transport of frozen food, a number of separation components 52 for initially separating frozen food, and a number of separators 53 for further separating frozen food.

[0066] The height restriction plate 51 has a rectangular plate structure. It is located at the end of the channel 411 where the width increases and it is far from the feed inlet 12. Its thickness direction is parallel to the feeding direction of the feeding section, and its bottom and the feeding section form a space for single-layer frozen food to pass through, which effectively reduces the probability of frozen food being fed into the frozen space 11 in a stacked state.

[0067] The height limit plate 51 is vertically connected to the cover 41, allowing workers to adjust the distance between the height limit plate 51 and the feeding section according to the size and shape of the frozen food, thereby improving the adaptability of the separating device to different frozen foods. In this embodiment, the height limit plate 51 is preferably adjusted relative to the cover 41 by means of a screw drive; since the screw drive structure is a common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0068] The separating component 52 is located on the side of the height limiting plate 51 near the inlet 12, and the distance between the separating component 52 and the feeding section can also be adjusted by the staff according to different frozen foods. In this embodiment, it is preferable that there is a connection between the separating component 52 and the height limiting plate 51, so that the separating component 52 and the height limiting plate 51 can be adjusted synchronously, and the distance between the height limiting plate 51 and the feeding section is equal to the height of the space below the separating component 52 for the frozen food to pass through; and preferably, the spacing device 5 includes one separating component 52. In other embodiments, the spacing device 5 may also include more separating components 52.

[0069] Reference Figure 5 and Figure 6The separation assembly 52 includes a rotating rod 521, multiple separation components 522, and multiple movable components 523.

[0070] The rotating rod 521 has a cylindrical rod structure. It is rotatably connected to the height limit plate 51 and can rotate relative to the cover 41. Its rotation axis coincides with its own axis and is parallel to the width direction of the quick-freezing chamber 1. It forms a space between itself and the feeding section for quick-frozen food to pass through.

[0071] Reference Figure 4 and Figure 5 The separating element 522 has a sheet-like structure and is installed on the outside of the rotating rod 521. Multiple separating elements 522 are distributed in pairs along the axial direction of the rotating rod 521 at equal intervals, with two separating elements 522 in the same group located on opposite sides of the rotating rod 521 in the same radial direction. Each separating element 522 extends outward along the radial direction of the rotating rod 521, and each side has a separating portion 5221 for separating frozen food. This portion is rotatably connected to the rotating rod 521, and its rotation axis is parallel to its outward extension direction. Adjacent separating elements 522 on the same side of the rotating rod 521 form a clearance opening 524 for the partially separated frozen food to pass through. During the adjustment of the rotating rod 521 with the height limit plate 51, a certain distance is maintained between the separating element 522 and the feeding section. In this embodiment, the thickness of the separating portion 5221 preferably gradually decreases outward to facilitate its insertion between adhered frozen foods and separation of the frozen foods.

[0072] Multiple movable parts 523 and multiple separable parts 522 are corresponding one-to-one. The movable parts 523 are movably installed inside the rotating rod 521, and their direction of movement is parallel to the rotation axis of the corresponding separable part 522. Under the action of their own gravity, they rotate with the rotating rod 521 and move relative to the rotating rod 521. In this embodiment, preferably, the mass of the movable part 523 is greater than the mass of the separable part 522.

[0073] Reference Figure 5 and Figure 6The movable part 523 is linked with the corresponding separating part 522, so that the movable part 523 can drive the corresponding separating part 522 to rotate relative to the movable part during the movement of the movable part relative to the rotating rod 521; when the movable part 523 moves to the limit position in the direction close to the axis of the rotating rod 521, the corresponding separating part 522 rotates so that its two separating parts 5221 are distributed along the axis of the rotating rod 521; when the movable part 523 moves to the limit position in the direction away from the axis of the rotating rod 521, the corresponding separating part 522 rotates so that its two separating parts 5221 are distributed in the direction perpendicular to the axis of the rotating rod 521. In this embodiment, the portion of the separating member 522 that is rotatably connected to the rotating rod 521 is preferably a hollow cylindrical structure, and the movable member 523 is preferably a cylindrical structure. One end of the movable member 523 is fitted through the hollow cylindrical structure of the separating member 522, and the axis of the movable member 523 coincides with the axis of the hollow cylindrical structure of the corresponding separating member 522. The outer side of the movable member 523 has a protrusion, and the inner side of the hollow cylindrical structure of the separating member 522 has a groove for the protrusion to engage with a spiral trajectory, so that the movable member 523 can move to drive the corresponding separating member 522 to rotate. Preferably, during the movement of the movable member 523 relative to the rotating rod 521, the corresponding separating member 522 rotates by an angle of 90°.

[0074] During the rotation of the rotating rod 521 relative to the cover 41, the separating member 522 located at the bottom of the rotating rod 521 moves to its limit position in a direction away from the axis of the rotating rod 521 due to the action of its corresponding movable member 523 under its own gravity. This makes it so that one side of the separating part 5221 faces the frozen food being transported and fed towards the separating component 52, which facilitates the initial separation of the sticky frozen food by its separating part 5221. The separating member 522 located at the top of the rotating rod 521 moves to its limit position in a direction close to the axis of the rotating rod 521 due to the action of its corresponding movable member 523 under its own gravity. This makes one side of its thickness direction used to bear the air blown out by the fan 42, which facilitates the rotation of the rotating rod 521 relative to the cover 41 during the operation of the fan 42.

[0075] Meanwhile, as the separating element 522 rotates with the rotating rod 521 to switch its rotation state, it can drive the frozen food that is in contact with the separating element 522 on the side of the separating component 52 away from the feed inlet 12 to be misaligned and transported at a different speed. This speeds up the transport of frozen food that is in contact with one separating part 5221 while slowing down the transport of frozen food that is in contact with another separating part 5221. It can also drive the frozen food that is in contact with it to change its position along the axis of the rotating rod 521.

[0076] Reference Figure 4 and Figure 6The separator 53 has a cylindrical structure and is located on the side of the separation assembly 52 near the inlet 12. It is installed vertically on the cover 41 with its axial direction and a certain gap between its bottom and the feeding section. Multiple separators 53 are distributed in multiple rows along the length of the cover 41. The separators 53 in the same row are evenly spaced along the width of the cover 41, and the separators 53 in adjacent rows are staggered along the length of the cover 41. The adjacent separators 53 in the same row form a space for individual frozen food items to pass through, thereby achieving further separation of sticky frozen food items. In this embodiment, the separator device 5 preferably includes two rows of separators 53; in other embodiments, the separator device 5 may also include more rows of separators 53.

[0077] The separator 53 is movably connected to the cover 41, and its direction of movement is parallel to the width direction of the cover 41. This allows workers to adjust the spacing between adjacent separators 53 in the same row according to the size and shape of the frozen food, thereby improving the adaptability of the separator to different frozen foods. In this embodiment, it is preferable that the separator 53 is freely slidably connected relative to the cover 41, and its top is fixed in position above the cover 41 by a nut. Since the above structure is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0078] Multiple separators 53 are rotatably fitted with rotating parts 54 for contacting frozen food. The rotating parts 54 are hollow cylindrical structures, and their rotation axis coincides with their own axis and the axis of the corresponding separator 53. The outer surface of the rotating parts 54 is rough. When frozen food passes between adjacent separators 53 in the same row, it will contact the surface of at least one rotating part 54, and the rotating part 54 will rotate relative to the corresponding separator 53. At this time, if frozen food is also transported between adjacent separators 53 in the same row and comes into contact with the surface of the rotating part 54, the rotation of the rotating part 54 will slow down the transport speed of the frozen food. This allows the frozen food passing through the separators 53 to be transported in a staggered manner and maintain a certain distance, thereby effectively reducing the probability of frozen food sticking together again after separation.

[0079] The implementation principle of a spiral quick-freezing device for quick-frozen foods according to an embodiment of this application is as follows:

[0080] Before a large quantity of frozen food to be quick-frozen is transported into the quick-freezing space 11 through the feeding section 31, it will first enter the channel 411. The frozen food transported in the channel 411 will fully come into contact with the air blown out by the fan 42, effectively removing excess moisture from the surface of the frozen food, reducing the probability of the frozen food sticking together due to excessive surface moisture, and also effectively reducing the probability that the quick-freezing effect of the frozen food will be affected by excessive surface moisture.

[0081] Meanwhile, the height restriction plate 51 will restrict the frozen food from being transported in a single layer, reducing the probability of the frozen food being transported in a stacked state; then the separation component 52 will initially separate the frozen food, initially reducing the sticking of the frozen food; then multiple separators 53 will further separate the frozen food, further reducing the sticking of the frozen food, so that the frozen food can be transported individually and with a certain interval through the feed inlet 12 into the quick-freezing space 11, and then transported along the spiral trajectory of the spiral conveyor 3. After being quick-frozen by the condensation action of the condensing device 2, it will be sent out through the discharge section 32 to complete the subsequent processes.

[0082] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spiral quick-freezing device for quick-frozen foods, characterized in that, It includes a quick-freezing chamber (1), a condensing device (2), a spiral conveying device (3), a drying device (4), and a partition device (5); The quick-freezing chamber (1) has a quick-freezing space (11) inside, and an inlet (12) and an outlet (13) communicating with the quick-freezing space (11) are respectively opened on both sides. The condensing device (2) is disposed in the quick-freezing space (11) and forms a cold air circulation in the quick-freezing space (11); The spiral conveyor (3) is installed in the quick-freezing space (11), and its two ends are the feeding section (31) and the discharging section (32) respectively. The feeding section (31) extends out of the feeding port (12) and the discharging section (32) extends out of the discharging port (13). The drying device (4) is located on the side of the quick-freezing chamber (1) where the feed inlet (12) is located. It includes a cover (41) and a fan (42). The cover (41) is located above the feed section (31), and a channel (411) is formed below the feed section (31) above it. One end of the channel (411) is connected to the feed inlet (12). The fan (42) is located at one end of the channel (411) near the feed inlet (12) and blows air towards the end of the channel (411) away from the feed inlet (12). The spacing device (5) is disposed above the feeding section (31) and in the channel (411), and includes a height limit plate (51) and a plurality of separators (53); a space for a single layer of quick-frozen food is formed between the height limit plate (51) and the feeding section (31), and the separators (53) are located on the side of the height limit plate (51) near the feeding port (12), and a space for a single quick-frozen food is formed between adjacent separators (53); The cover (41) is flared out toward the feed inlet (12), and the width of the channel (411) at the height limit plate (51) is greater than the width of the end of the channel (411) away from the feed inlet (12); The cover (41) has two clearance spaces (413) on the side of the height limit plate (51) away from the feed inlet (12). The two clearance spaces (413) are located on both sides of the channel (411) and are both located above the feed section (31).

2. The spiral quick-freezing equipment for quick-frozen foods according to claim 1, characterized in that, The height limit plate (51) is movably connected to the cover (41), and the distance between the height limit plate (51) and the feeding section (31) changes during the movement of the height limit plate (51).

3. A spiral quick-freezing device for quick-frozen foods according to claim 2, characterized in that, The spacing device (5) further includes a plurality of separation components (52), and the separation components (52) are located between the height limit plate (51) and the separator (53); The separation assembly (52) includes a rotating rod (521) and a plurality of separation components (522); the rotating rod (521) is rotatably connected to the cover (41), and its rotation axis is horizontal and perpendicular to the feeding direction of the feeding section (31); the separation component (522) is disposed on the outside of the rotating rod (521), and there is a clearance opening (524) between two adjacent separation components (522) along the axial direction of the rotating rod (521) for quick-frozen food to pass through, and there are separation parts (5221) on both sides of the separation component (522) for separating quick-frozen food.

4. A spiral quick-freezing device for quick-frozen foods according to claim 3, characterized in that, The separation component (52) is movably connected to the cover (41), and its direction of movement is parallel to the direction of movement of the height limit plate (51), and it moves synchronously with the height limit plate (51).

5. A spiral quick-freezing device for quick-frozen foods according to claim 3, characterized in that, The separation component (52) further includes a plurality of movable parts (523), and the plurality of movable parts (523) correspond one-to-one with the plurality of separation components (522); The separating element (522) is generally in the form of a sheet and is installed on the outside of the rotating rod (521); multiple separating elements (522) are distributed in pairs along the axial direction of the rotating rod (521) at equal intervals, and the two separating elements (522) in the same group are located on both sides of the rotating rod (521) in the same radial direction, and the separating elements (522) extend outward along the radial direction of the rotating rod (521); The separating component (522) is rotatably connected to the rotating rod (521), and its rotation axis is the same as the direction of its extension and perpendicular to the rotation axis of the rotating rod (521). The movable part (523) is movably disposed inside the rotating rod (521), and its direction of movement is the same as the rotation axis of the corresponding separating part (522); The movable part (523) is linked with the corresponding separating part (522), and during its movement relative to the rotating rod (521), it drives the separating part (522) to rotate relative to the rotating rod (521); When the movable part (523) moves to its limit position in a direction away from the axis of the rotating rod (521), the separating part (522) rotates to a state for separating frozen food; when the movable part (523) moves to its limit position in a direction close to the axis of the rotating rod (521), the separating part (522) rotates to a state where the rotating rod (521) is rotated by the air blown by the fan (42).

6. A spiral quick-freezing device for quick-frozen foods according to claim 1, characterized in that, The separator (53) is movably connected to the cover (41), and the spacing between adjacent separators (53) changes during the movement of the separator (53).

7. A spiral quick-freezing device for quick-frozen foods according to claim 1, characterized in that, The spacer device (5) further includes a plurality of rotating parts (54), and the plurality of rotating parts (54) correspond one-to-one with the plurality of spacers (53); The rotating component (54) is rotatably mounted on the separator (53), with its rotation axis vertical and its outer side in contact with the frozen food.

8. A spiral quick-freezing device for quick-frozen foods according to claim 1, characterized in that, The multiple separators (53) are arranged in multiple rows along the feeding direction of the feeding section (31), and the multiple separators (53) in adjacent rows are staggered along the feeding direction of the feeding section (31).

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