Freeze-drying spraying device capable of uniformly dispersing solution

By introducing a limiting plate and a filter tank into the freeze-drying spray device, combined with an electric telescopic rod, the problem of uneven solution dispersion was solved, and the manufacturing efficiency of freeze-drying spray was improved.

CN224113298UActive Publication Date: 2026-04-14SHANGHAI DUOLI CONTROL ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DUOLI CONTROL ENG CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In common freeze-drying spray equipment, if the solution contains impurities, the nozzle is easily clogged, resulting in uneven solution dispersion and reduced freeze-drying spray manufacturing efficiency.

Method used

A freeze-drying spray device was designed, comprising a delivery pipe, a limiting structure, a filtering mechanism, and an electric telescopic rod. The limiting plate and the filter groove prevent impurities from clogging the nozzle, and the electric telescopic rod achieves uniform dispersion of the atomized nozzle.

Benefits of technology

This method achieves uniform dispersion of the solution within the vacuum freeze-drying chamber, avoids nozzle clogging, and improves freeze-drying and manufacturing efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224113298U_ABST
    Figure CN224113298U_ABST
Patent Text Reader

Abstract

The utility model discloses a freeze-drying spraying device capable of uniformly dispersing a solution, which is characterized in that a conveying pipe is arranged on the side surface of a vacuum freeze-drying box through a limiting structure, the limiting structure is formed by combining a first limiting plate, a first clamping groove, a second limiting plate and a second clamping groove, and the right side of the vacuum freeze-drying box is provided with an open groove; an adjusting mechanism used for adjusting movement of the conveying pipe is arranged on the right side of the vacuum freeze drying box, and the conveying pipe is in sliding connection with the open groove. According to the freeze-drying spraying device capable of uniformly dispersing the solution, a conveying pipe can drive an atomizing spray head to move up and down in an open groove, so that the solution sprayed by the atomizing spray head is uniformly dispersed in a vacuum freeze-drying box, freeze-drying is facilitated, a first limiting plate and a second limiting plate are beneficial to enabling the conveying pipe to vertically move up and down, and the freeze-drying effect is improved. And shaking is avoided, the filtering tank can filter the conveyed solution, impurities are prevented from blocking the atomizing nozzle, and the solution is further uniformly dispersed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of freeze-drying spray technology, specifically to a freeze-drying spray device that can uniformly disperse a solution. Background Technology

[0002] A freeze-drying spray device, also known as a spray freeze-drying granulation device or a spray freeze dryer, is a device that transforms liquid substances into fine particles through spraying and freeze-drying. The liquid substance is atomized into tiny droplets through a high-pressure nozzle, a process that greatly increases the surface area of ​​the material, providing favorable conditions for subsequent rapid freezing. The droplets freeze rapidly under low-temperature conditions, usually using liquid nitrogen or other refrigerants to quickly lower the ambient temperature, ensuring that the droplets solidify into solid ice crystals in a very short time, effectively preventing the growth and structural damage of the ice crystals.

[0003] However, if the solution contains impurities, common freeze-drying spray devices can clog the nozzles during use, resulting in uneven solution dispersion and low production efficiency. Therefore, there is still room for improvement.

[0004] Therefore, we propose a freeze-drying spray device that can uniformly disperse the solution in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a freeze-drying spray device that can uniformly disperse a solution, thereby solving the problem mentioned in the background art that, during the use of commonly used freeze-drying spray devices, if the solution contains impurities, it will clog the nozzle, resulting in uneven solution dispersion and low freeze-drying spray manufacturing efficiency, thus leaving room for further improvement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a freeze-drying spray device capable of uniformly dispersing a solution, comprising:

[0007] The conveying pipe is installed on the side of the vacuum freeze-drying oven via a limiting structure. The limiting structure is composed of a first limiting plate, a first slot, a second limiting plate, and a second slot. The right side of the vacuum freeze-drying oven is provided with a slot, and an electric telescopic rod is provided on the right side of the vacuum freeze-drying oven.

[0008] Also includes:

[0009] The right side of the vacuum freeze-drying oven is provided with an adjustment mechanism for adjusting the movement of the conveying pipe, and the conveying pipe is slidably connected to the slot.

[0010] A filtration mechanism for filtration is provided on the right side of the delivery pipe.

[0011] Preferably, the front side of the vacuum freeze-drying oven is rotatably connected to a lid, the rear side of the vacuum freeze-drying oven is provided with a liquid nitrogen tank, and the lower inner side of the vacuum freeze-drying oven is provided with a receiving plate.

[0012] Preferably, the upper side of the electric telescopic rod is fixedly connected to the conveying pipe, and an atomizing nozzle is provided on the left side of the conveying pipe, and the atomizing nozzles are distributed in an array.

[0013] Preferably, a first limiting plate is provided on the outer side of the conveying pipe, and the first limiting plate is slidably connected to the first slot, and the first slot is located on the inner right side of the vacuum freeze-drying oven.

[0014] Preferably, a second limiting plate is provided on the outer side of the conveying pipe, and the second limiting plate is slidably connected to the second slot. The second slot is located on the right side of the outer side of the vacuum freeze-drying oven, and the first limiting plate is located to the left of the second limiting plate.

[0015] Preferably, the right side of the conveying pipe is fixedly connected to the filter box, and a sealing cover is rotatably connected to the upper side of the filter box, and a filter groove is slidably connected to the inner side of the filter box.

[0016] Preferably, a collection baffle is provided on the right side of the filter tank, and the right side of the filter box is fixedly connected to the folded corrugated pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the freeze-drying spray device that can uniformly disperse the solution has a conveying pipe that carries the atomizing nozzle to move up and down in the slot, so that the solution sprayed by the atomizing nozzle is uniformly dispersed in the vacuum freeze-drying chamber, which is beneficial to freeze-drying. The first limiting plate and the second limiting plate are conducive to the vertical up and down movement of the conveying pipe, avoiding shaking. The filter tank filters the conveyed solution to prevent impurities from clogging the atomizing nozzle, further making the solution uniformly dispersed.

[0018] 1. Equipped with an electric telescopic rod, a conveying pipe, and an atomizing nozzle. When the electric telescopic rod is working, the conveying pipe will move the atomizing nozzle up and down in the slot, so that the solution sprayed by the atomizing nozzle is evenly dispersed in the vacuum freeze-drying chamber, which is beneficial to freeze-drying.

[0019] 2. It is equipped with a first limiting plate, a first slot, a second limiting plate and a second slot. The first limiting plate and the second limiting plate are provided on the outside of the conveying pipe. The conveying pipe and the second limiting plate are located on the right side of the vacuum freeze-drying oven, which can limit the conveying pipe and facilitate the vertical up and down movement of the conveying pipe to avoid shaking.

[0020] 3. It is equipped with a filter box, a filter tank, and a collection baffle. The filter box contains a filter tank that filters the delivered solution. The filter tank can be removed from the filter box. The collection baffle can collect impurities for easy cleaning, thereby preventing impurities from clogging the atomizing nozzle and further ensuring that the solution is evenly dispersed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of the vacuum freeze-drying oven and conveying pipe of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the vacuum freeze-drying oven of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is an exploded structural diagram of the filter box and filter tank of this utility model.

[0026] In the diagram: 1. Vacuum freeze-drying oven; 2. Oven lid; 3. Liquid nitrogen tank; 4. Receiving plate; 5. Slot; 6. Electric telescopic rod; 7. Conveying pipe; 8. Atomizing nozzle; 9. First limiting plate; 10. First slot; 11. Second limiting plate; 12. Second slot; 13. Filter box; 14. Sealing cover; 15. Filter tank; 16. Collection baffle; 17. Folded corrugated pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0028] This embodiment is a freeze-drying spray device that can uniformly disperse a solution.

[0029] like Figure 1 and Figure 3As shown, a lid 2 is rotatably connected to the front of the vacuum freeze-drying oven 1, a liquid nitrogen tank 3 is provided on the rear side of the vacuum freeze-drying oven 1, a receiving plate 4 is provided on the lower inner side of the vacuum freeze-drying oven 1, a slot 5 is provided on the right side of the vacuum freeze-drying oven 1, an electric telescopic rod 6 is provided on the right side of the vacuum freeze-drying oven 1, the upper side of the electric telescopic rod 6 is fixedly connected to the conveying pipe 7, the conveying pipe 7 is slidably connected to the slot 5, and an atomizing nozzle 8 is provided on the left side of the conveying pipe 7, the atomizing nozzles 8 are arranged in an array.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a first limiting plate 9 is provided on the outer side of the conveying pipe 7. The first limiting plate 9 is slidably connected to the first slot 10. The first slot 10 is located on the inner right side of the vacuum freeze-drying oven 1. A second limiting plate 11 is provided on the outer side of the conveying pipe 7. The second limiting plate 11 is slidably connected to the second slot 12. The second slot 12 is located on the outer right side of the vacuum freeze-drying oven 1. The first limiting plate 9 is located to the left of the second limiting plate 11. The right side of the conveying pipe 7 is fixedly connected to the filter box 13. A sealing cover 14 is rotatably connected to the upper side of the filter box 13. A filter groove 15 is slidably connected to the inner side of the filter box 13. A collection baffle 16 is provided on the right side of the filter groove 15. The right side of the filter box 13 is fixedly connected to the folded corrugated pipe 17.

[0031] It should be noted that the liquid nitrogen tank 3 stores liquid nitrogen, which is transported through a connecting pipe to the space between the vacuum freeze-drying chamber 1 and the receiving plate 4. After the liquid nitrogen is released, it absorbs heat, thereby cooling the space inside the vacuum freeze-drying chamber 1, the chamber cover 2, and the receiving plate 4. The solution sprayed from the atomizing nozzle 8 will be atomized. The atomized material comes into contact with the liquid nitrogen and can be frozen quickly, thereby shortening the freeze-drying time and improving the freeze-drying efficiency.

[0032] like Figure 1 , Figure 3 and Figure 4As shown, the atomizing nozzles 8 are arranged in an array. The solution is transported to the atomizing nozzles 8 through the conveying pipe 7 and sprayed out from the atomizing nozzles 8. At this time, the solution sprayed from the atomizing nozzles 8 is evenly dispersed in the vacuum freeze-drying chamber 1. When the electric telescopic rod 6 is activated, the electric telescopic rod 6 will move the conveying pipe 7 up and down in the slot 5. At this time, the atomizing nozzles 8 will also move up and down in the vacuum freeze-drying chamber 1, so that the solution sprayed from the atomizing nozzles 8 is evenly dispersed in the vacuum freeze-drying chamber 1, which is conducive to freeze-drying. In addition, a first limiting plate 9 and a second limiting plate 11 are provided on the outside of the conveying pipe 7, and the conveying pipe 7 and the second limiting plate 11 are respectively located on the right side of the vacuum freeze-drying chamber 1. When the conveying pipe 7 moves up and down, the first limiting plate 9 and the second limiting plate 11 will also move up and down. However, the second limiting plate 11 will always block the slot 5 to prevent the temperature from overflowing, which is conducive to freeze-drying. The first limiting plate 9 and the second limiting plate 11 play a limiting role for the conveying pipe 7, which is conducive to the vertical up and down movement of the conveying pipe 7 and prevents shaking.

[0033] like Figure 2 and Figure 5 As shown, the filter box 13 is located on the right side of the conveying pipe 7, and the filter box 13 is equipped with a filter tank 15. When the solution is conveyed from the folded corrugated pipe 17 into the filter box 13, the filter tank 15 will filter the conveyed solution. The right side of the filter tank 15 is equipped with a collection baffle 16, which can collect impurities for easy cleaning. In addition, by rotating and opening the sealing cover 14, the filter tank 15 can be disassembled from the filter box 13 to prevent impurities from clogging the atomizing nozzle 8 and further to make the solution evenly dispersed. After the freeze-drying is completed, the box cover 2 can be opened to take out the finished material.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A freeze-drying spray apparatus capable of uniformly dispersing a solution, comprising: The conveying pipe (7) is installed on the side of the vacuum freeze-drying oven (1) by means of a limiting structure. The limiting structure is composed of a first limiting plate (9), a first slot (10), a second limiting plate (11), and a second slot (12). The right side of the vacuum freeze-drying oven (1) is provided with a slot (5), and an electric telescopic rod (6) is provided on the right side of the vacuum freeze-drying oven (1). Its characteristic is that it further includes: The right side of the vacuum freeze-drying oven (1) is provided with an adjustment mechanism for adjusting the movement of the conveying pipe (7), and the conveying pipe (7) is slidably connected to the slot (5). A filtration mechanism for filtration is provided on the right side of the delivery pipe (7).

2. The freeze-drying spray apparatus for uniformly dispersing a solution according to claim 1, characterized in that: The front side of the vacuum freeze-drying oven (1) is rotatably connected to a lid (2), and a liquid nitrogen tank (3) is provided on the rear side of the vacuum freeze-drying oven (1). A receiving plate (4) is provided on the lower inner side of the vacuum freeze-drying oven (1).

3. The freeze-drying spray apparatus for uniformly dispersing a solution according to claim 1, characterized in that: The upper side of the electric telescopic rod (6) is fixedly connected to the conveying pipe (7), and an atomizing nozzle (8) is provided on the left side of the conveying pipe (7), and the atomizing nozzle (8) is arranged in an array.

4. The freeze-drying spray apparatus for uniformly dispersing a solution according to claim 3, characterized in that: The outer side of the conveying pipe (7) is provided with a first limiting plate (9), and the first limiting plate (9) is slidably connected with the first slot (10), and the first slot (10) is located on the right side of the inner side of the vacuum freeze dryer (1).

5. A freeze-drying spray apparatus for uniformly dispersing a solution according to claim 4, characterized in that: The outer side of the conveying pipe (7) is provided with a second limiting plate (11), and the second limiting plate (11) is slidably connected with the second slot (12). The second slot (12) is located on the right side of the vacuum freeze dryer (1), and the first limiting plate (9) is located on the left side of the second limiting plate (11).

6. The freeze-drying spray apparatus for uniformly dispersing a solution according to claim 1, characterized in that: The right side of the conveying pipe (7) is fixedly connected to the filter box (13), and the upper side of the filter box (13) is rotatably connected to the sealing cover (14), and the inner side of the filter box (13) is slidably connected to the filter groove (15).

7. The freeze-drying spray apparatus for uniformly dispersing a solution according to claim 6, characterized in that: A collection baffle (16) is provided on the right side of the filter tank (15), and the right side of the filter box (13) is fixedly connected to the folded corrugated pipe (17).