A freeze-drying apparatus for freeze-drying pet dairy products
By using inclined guide plates and a collection structure design in the freeze-drying equipment, the problem of material contamination between the upper and lower layers is solved, achieving clean drying and convenient handling of materials, and improving the freeze-drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DOUBEI TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-23
AI Technical Summary
In existing freeze-drying equipment for pet dairy products, the materials in the upper and lower layers are prone to cross-contamination, and debris easily falls onto the materials below, leading to cross-contamination and material brittleness.
The inclined first and second guide plates guide the water and impurities falling from the tray into the material discharge channel, where they are collected by the collection section. Combined with the guide groove and protrusion design, it facilitates the handling of debris and water and avoids material contamination.
It effectively prevents cross-contamination between upper and lower layers of materials, improves the cleanliness of materials and the convenience of debris handling, and reduces material embrittlement and debris falling.
Smart Images
Figure CN224398147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of freeze-drying technology, and in particular to a freeze-drying device for freeze-drying pet dairy products. Background Technology
[0002] Freeze-dried pet food refers to high-nutrition pet food made by rapidly freezing fresh meat, vegetables, fruits, and other raw materials at low temperatures and then processing them through a sublimation drying process. The production of this product requires the use of freeze-drying chambers to process the raw materials.
[0003] A search revealed a prior art freeze-drying device for freeze-drying pet dairy products, comprising a freeze-drying chamber, a vacuum pump interface on the outer wall of the freeze-drying chamber, a one-way valve fitted onto the vacuum pump interface, symmetrically arranged strip plates inside the freeze-drying chamber, T-shaped blocks slidably arranged within the strip plates, a square frame between the T-shaped blocks, multiple placement mechanisms arranged between the inner walls along the length of the square frame, a collection mechanism inside the freeze-drying chamber, and a freezing mechanism at the bottom of the inner wall of the freeze-drying chamber.
[0004] Existing technologies use porous mesh to support raw materials for freeze-drying. For protein products, when the raw materials are first placed in, the water in the raw materials is not yet frozen, and the dripping water will fall onto the raw materials in the next layer, causing cross-contamination. In the later stages of freeze-drying, the raw materials become brittle and hard, easily forming debris, which can also easily fall from the pores onto the materials below.
[0005] Therefore, we propose a freeze-drying device for freeze-drying pet dairy products. Utility Model Content
[0006] The present invention mainly addresses the technical problem of easy cross-contamination between upper and lower layer materials, and provides a freeze-drying device for freeze-drying pet dairy products.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a freeze-drying device for freeze-drying pet dairy products, comprising:
[0008] The freezer body has a vacuum tube for evacuating vacuum fixedly installed on one side of the freezer body. The vacuum tube is fixedly installed with a one-way valve and is connected to a vacuum pump.
[0009] A lifting structure is installed inside the freezer body for loading materials. The lifting structure includes a support frame and a tray. The support frame is fixedly installed on both inner walls of the freezer body, and the tray is placed on the support frame.
[0010] A collection structure is provided at the bottom of the support frame to collect debris falling from the support frame. The collection structure includes a first guide plate, a second guide plate, and a collection part. The first guide plate and the second guide plate are fixedly installed on the support frames on both sides of the freezer body, and a material drop channel is formed between the second guide plates. The collection part is detachably installed inside the freezer body and located directly below the material drop channel.
[0011] In a preferred embodiment of this utility model, the collection structure further includes a guide groove, which is fixedly installed with the freezer body, and the collection part is inserted into the guide groove.
[0012] In a preferred embodiment of this utility model, both the first guide plate and the second guide plate are rectangular plates. One end of the first guide plate is fixedly installed to the bottom of the support frame on one side of the freezing box body, and the second guide plate is fixedly installed to the bottom of the support frame on the other side of the freezing box body. The first guide plate and the second guide plate are arranged in a V-shape, and the first guide plate and the second guide plate can guide the debris towards the discharge channel.
[0013] In a preferred embodiment of this utility model, the collecting part is a rectangular box with an open top, and the top of the guide groove is provided with a rectangular groove for inserting the collecting part, and the collecting part is located in the rectangular groove.
[0014] In a preferred embodiment of this utility model, the collecting structure further includes bottom grooves, and several bottom grooves are fixedly installed on the inner bottom surface of the collecting part, with the bottom of the collecting part forming a concave-convex contact surface through the bottom grooves.
[0015] In a preferred embodiment of this utility model, the bottom groove is a hemisphere, the interior of the bottom groove is hollow, and the spherical surface of the bottom groove is distributed upwards.
[0016] In a preferred embodiment of the present invention, the collecting structure further includes protrusions. Several protrusions are formed on the outer bottom surface of the collecting part, and the protrusions form hook-shaped grooves. The depth of the protrusions is less than the thickness of the bottom of the collecting part.
[0017] This invention provides a freeze-drying device for freeze-drying pet dairy products. It has the following beneficial effects:
[0018] 1. The freeze-drying equipment for freeze-dried pet dairy products guides water and impurities falling from the trays toward the material discharge channel through an inclined first guide plate and second guide plate. The impurities and water enter the collection section from the material discharge channel and are collected in a concentrated manner, preventing debris and water droplets in the upper material from falling into the material on the lower tray, and ensuring that the materials on each tray do not contaminate each other.
[0019] 2. This freeze-drying equipment for freeze-drying pet dairy products allows for easy removal of the collection section for processing of debris and water by inserting the collection section into the rectangular groove of the guide groove, thus facilitating maintenance.
[0020] 3. This freeze-drying equipment for freeze-drying pet dairy products features a plurality of hollow bottom grooves on the inner bottom surface of the collection section and a plurality of protrusions on the outer bottom surface of the collection section. When the collection section is pulled out to pour out debris and water, the inside of the freezer is in a low-temperature environment. After the collection section is pulled out of the freezer chamber, the hot air from the outside will heat the collection section. The protrusions and bottom grooves increase the heating area at the bottom of the collection section. The hollow bottom grooves can deform under the action of temperature difference, promoting the separation of frozen water from the bottom of the collection section, preventing frozen blocks from adhering to the bottom of the collection section, and improving the convenience of debris removal. Attached Figure Description
[0021] Figure 1 This is the present utility model;
[0022] Figure 2 This is the present utility model;
[0023] Figure 3 This is the present utility model;
[0024] Figure 4 This is the present utility model;
[0025] Figure 5 This is the present utility model.
[0026] Legend: 10. Freezer body; 11. Vacuum tube; 12. Support frame; 13. Tray; 20. First guide plate; 21. Second guide plate; 22. Collection section; 23. Guide groove; 30. Protrusion; 31. Bottom groove. Detailed Implementation
[0027] A freeze-drying device for freeze-dried pet dairy products, such as Figure 1 and Figure 2 As shown, it includes:
[0028] The freezer body 10 has a vacuum tube 11 for vacuuming fixedly installed on one side of the freezer body 10. A one-way valve is fixedly installed on the vacuum tube 11. The vacuum tube 11 is connected to a vacuum pump. A sealing door is hinged to the front wall of the freezer body 10.
[0029] A lifting structure is installed inside the freezer body 10 for loading materials. The lifting structure includes a support frame 12 and a tray 13. The support frame 12 is fixedly installed on both inner walls of the freezer body 10, and the tray 13 is placed on the support frame 12.
[0030] By placing dairy products on a porous tray 13, the material is frozen by cooling the inside of the freezer body 10, and the water sublimates by vacuuming with the vacuum tube 11, thus achieving freeze-drying of the material. The tray 13 can be placed on the support frame 12 for loading and unloading, which is convenient and practical.
[0031] like Figure 2 and Figure 3 As shown, a collection structure is set at the bottom of the support frame 12 to collect debris falling from the support frame 12. The collection structure includes a first guide plate 20, a second guide plate 21, and a collection part 22. The first guide plate 20 and the second guide plate 21 are fixedly installed on the support frames 12 on both sides of the freezer body 10, respectively. A material drop channel is formed between the second guide plates 21. The collection part 22 is detachably installed inside the freezer body 10 and located directly below the material drop channel. The first guide plate 20 and the second guide plate 21 are both rectangular plates. One end of the first guide plate 20 is fixedly installed on the bottom of the support frame 12 on one side of the freezer body 10, and the second guide plate 21 is fixedly installed on the bottom of the support frame 12 on the other side of the freezer body 10. The first guide plate 20 and the second guide plate 21 are arranged in a V-shape. The first guide plate 20 and the second guide plate 21 can guide the debris toward the material drop channel.
[0032] In this solution, it is mainly considered that during the initial freezing of dairy products placed on tray 13, some moisture will drip down. As a result, water from multiple trays 13 stacked from top to bottom inside the freezer body 10 will drip down sequentially, causing cross-contamination between the upper and lower layers of materials. The inclined first guide plate 20 and second guide plate 21 guide the water and impurities falling from the tray 13 towards the material discharge channel. The impurities and water enter the collection section 22 from the material discharge channel and are collected in a concentrated manner, preventing debris and water droplets from the upper layer of materials from falling into the materials on the lower tray 13, and ensuring that the materials on each tray 13 do not contaminate each other.
[0033] like Figure 3 As shown, the collection structure also includes a guide groove 23, which is fixedly installed with the freezer body 10. The collection part 22 is inserted into the guide groove 23. The collection part 22 is a rectangular box with an open top. The top of the guide groove 23 is provided with a rectangular groove for inserting the collection part 22. The collection part 22 is located in the rectangular groove.
[0034] In this solution, in order to facilitate the disassembly and assembly of the collection unit 22, the collection unit 22 is inserted into the rectangular groove of the guide groove 23, which makes it easy to pull out the collection unit 22 to process debris and water, and facilitates maintenance.
[0035] like Figure 4 and Figure 5 As shown, the collection structure also includes a bottom groove 31. Several bottom grooves 31 are fixedly installed on the inner bottom surface of the collection part 22. The bottom of the collection part 22 forms a concave-convex contact surface through the bottom grooves 31. The bottom groove 31 is a hemisphere. The interior of the bottom groove 31 is hollow. The spherical surface of the bottom groove 31 is distributed upwards. The collection structure also includes protrusions 30. Several protrusions 30 are opened on the outer bottom surface of the collection part 22. The protrusions 30 form hook-shaped grooves. The depth of the protrusions 30 is less than the thickness of the bottom of the collection part 22.
[0036] In this solution, as a supplement to the above solution, several hollow bottom grooves 31 are provided on the inner bottom surface of the collection section 22, and several protrusions 30 are provided on the outer bottom surface of the collection section 22. When the collection section 22 is pulled out to pour out debris and water, since the freezer body 10 is in a low-temperature environment, the hot air from the outside will heat the collection section 22 after the collection section 22 is pulled out of the freezer body 10 chamber. The protrusions 30 and bottom grooves 31 increase the heating area at the bottom of the collection section 22. The hollow bottom grooves 31 can deform under the action of temperature difference, which promotes the separation of frozen water in the collection section 22 from the bottom of the collection section 22, avoids the adhesion of frozen blocks to the bottom of the collection section 22, and improves the convenience of debris discharge.
[0037] The working principle of this utility model is as follows: The freezer body 10 typically includes a compressor, a condenser, an expansion valve, and an evaporator. These components are connected by pipes to form a circulation system. The compressor compresses the refrigerant, turning it into a high-temperature, high-pressure gas, which then enters the condenser. In the condenser, the refrigerant releases heat and becomes a liquid. Then, it is throttled and depressurized by the expansion valve, becoming a low-temperature, low-pressure liquid, which then enters the evaporator. In the evaporator, the refrigerant absorbs heat from the surroundings and evaporates into a gas, returning to the compressor to complete the cycle. This achieves the cooling of the interior of the freezer body 10, which will not be elaborated further here.
[0038] By placing dairy products on a porous tray 13, the material is frozen through internal cooling of the freezer body 10. Combined with vacuum extraction via vacuum tube 11, moisture sublimates, thus achieving freeze-drying. Water and impurities falling from the tray 13 are guided towards the discharge channel by inclined first guide plate 20 and second guide plate 21. The impurities and water enter the collection section 22 from the discharge channel and are collected. The collection section 22 is inserted into the rectangular groove of the guide groove 23, facilitating its removal for processing of debris and water. By providing several hollow bottom grooves 31 on the inner bottom surface of the collection section 22 and several protrusions 30 on the outer bottom surface of the collection section 22, when the collection section 22 is pulled out to pour out debris and water, since the freezer body 10 is in a low-temperature environment, the hot air from the outside will heat the collection section 22 after the collection section 22 is pulled out of the freezer body 10 chamber. The protrusions 30 and bottom grooves 31 increase the heating area at the bottom of the collection section 22, and the hollow bottom grooves 31 can deform under the action of temperature difference, promoting the separation of the frozen water in the collection section 22 from the bottom of the collection section 22.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A freeze-drying apparatus for freeze-drying a pet dairy product, characterized by, include: The freezer body (10) has a vacuum tube (11) for evacuating vacuum fixedly installed on one side of the freezer body (10). The vacuum tube (11) is fixedly installed with a one-way valve and is connected to a vacuum pump. A lifting structure is installed inside the freezer body (10) for loading materials. The lifting structure includes a support frame (12) and a tray (13). The support frame (12) is fixedly installed on both inner walls of the freezer body (10), and the tray (13) is placed on the support frame (12). A collection structure is set at the bottom of the support frame (12) to collect the debris falling from the support frame (12). The collection structure includes a first guide plate (20), a second guide plate (21) and a collection part (22). The first guide plate (20) and the second guide plate (21) are fixedly installed on the support frames (12) on both sides of the freezer body (10). A material drop channel is formed between the second guide plates (21). The collection part (22) is detachably installed inside the freezer body (10) and located directly below the material drop channel.
2. The freeze-drying equipment for freeze-dried pet dairy products according to claim 1, characterized in that: The collection structure also includes a guide groove (23), which is fixedly installed with the freezer body (10), and the collection part (22) is inserted into the guide groove (23).
3. The freeze-drying equipment for freeze-dried pet dairy products according to claim 1, characterized in that: The first guide plate (20) and the second guide plate (21) are both rectangular plates. One end of the first guide plate (20) is fixedly installed at the bottom of the support frame (12) on one side of the freezer body (10), and the second guide plate (21) is fixedly installed at the bottom of the support frame (12) on the other side of the freezer body (10). The first guide plate (20) and the second guide plate (21) are arranged in a figure-eight pattern. The first guide plate (20) and the second guide plate (21) can guide the debris toward the material drop channel.
4. The freeze-drying equipment for freeze-dried pet dairy products according to claim 2, characterized in that: The collecting part (22) is a rectangular box with an open top. The top of the guide groove (23) is provided with a rectangular groove for inserting the collecting part (22). The collecting part (22) is located in the rectangular groove.
5. The freeze-drying equipment for freeze-dried pet dairy products according to claim 1, characterized in that: The collection structure also includes a bottom groove (31), and several bottom grooves (31) are fixedly installed on the inner bottom surface of the collection part (22). The bottom of the collection part (22) forms a concave-convex contact surface through the bottom grooves (31).
6. The freeze-drying equipment for freeze-dried pet dairy products according to claim 5, characterized in that: The bottom groove (31) is a hemisphere, the interior of the bottom groove (31) is hollow, and the spherical surface of the bottom groove (31) is distributed upwards.
7. The freeze-drying equipment for freeze-dried pet dairy products according to claim 5, characterized in that: The collecting structure also includes protrusions (30). Several protrusions (30) are provided on the outer bottom surface of the collecting part (22). The protrusions (30) form hook-shaped grooves. The depth of the protrusions (30) is less than the thickness of the bottom of the collecting part (22).