Freeze dryer for processing freeze-dried rice milk powder
By designing a sliding rod in the freeze dryer to drive the connecting rod and the turning rod for automatic material turning, the problem of low sublimation efficiency of internal moisture in rice flour powder is solved, thus improving freeze-drying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI GUOWAN FOOD TECH DEV CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-17
AI Technical Summary
Existing freeze-drying equipment has low efficiency in the sublimation of internal moisture when the frozen rice flour is in large cubes, resulting in a long freeze-drying process and low efficiency.
A freeze dryer was designed, in which a sliding rod drives a connecting rod and a tipping rod to slide back and forth in the freeze-drying chamber. The pointed design of the tipping rod facilitates ice breaking and tipping, increases the surface area of rice flour, and improves sliding stability by combining rollers and guide grooves. A limiting plate prevents the tray from moving, thus realizing automatic tipping.
It improves freeze-drying efficiency, shortens freeze-drying time, increases the surface area of rice flour, and improves water sublimation efficiency.
Smart Images

Figure CN224136251U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of freeze-dried rice noodle processing technology, and in particular relates to a freeze dryer for processing freeze-dried rice flour. Background Technology
[0002] When using the freeze-drying device, rice milk powder is poured into a tray and placed inside the freeze-drying chamber. The freeze-drying program is then started on the control panel. At this time, the refrigeration system begins to work. After the rice milk powder in the tray is completely frozen, the drying stage begins. The vacuum pump starts to work. When the vacuum pump reaches the ideal state, the plate below the rice milk powder tray begins to heat slowly. The water crystals in the rice milk powder sublimate slowly under the vacuum environment. The sublimated water vapor encounters the lower temperature chamber wall and adheres to the chamber wall to form ice crystals. When the moisture in the rice milk powder is completely gone, the freeze-drying is complete. The resulting dried rice milk powder has completed the entire drying process at a low temperature, thus preserving the color and nutrients of the rice milk powder to the greatest extent.
[0003] Existing freeze-drying equipment has been found to produce frozen rice flour in large cubes. During the slow heating of the plates, the internal water does not easily sublimate, requiring a long freeze-drying process and resulting in low freeze-drying efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a freeze dryer for processing freeze-dried rice flour, which has the advantage of automatic material turning to improve freeze-drying efficiency, in order to solve the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A freeze dryer for processing freeze-dried rice flour powder includes: a freeze dryer body, a freeze drying chamber is provided on the front side of the freeze dryer body; heating plates are symmetrically installed in the inner cavity of the freeze drying chamber, the heating plates on both sides are arranged at equal intervals, and a material tray is placed on the top of the heating plates; a sliding rod is provided in the middle of the inner cavity of the freeze drying chamber, the sliding rod slides back and forth in the inner cavity of the freeze drying chamber, multiple connecting rods are symmetrically installed on both sides of the sliding rod, a turning rod is installed at the bottom of the connecting rod, the bottom of the turning rod extends into the inner cavity of the material tray and slides back and forth in the inner cavity of the material tray; wherein the front and rear ends of the turning rod are both set with sharp corners.
[0006] Furthermore, a sliding block is welded to the top of the sliding rod, and two guide columns are fixedly installed on the top of the freeze-drying chamber cavity, with the sliding block sliding on the surface of the guide columns.
[0007] Furthermore, a threaded rod is provided between the two guide columns. The threaded rod rotates at the top of the freeze-drying chamber and extends to the rear side of the freeze dryer body. A motor is installed on the rear side of the freeze dryer body, and the output shaft of the motor and the threaded rod are fixedly installed.
[0008] Furthermore, a locking block is fixedly installed on the side of the connecting rod near the sliding rod, and a slot for cooperating with the locking block is opened on the front side of the sliding rod. An mounting plate is fixedly installed on the front side of the sliding rod by bolts, and the locking block is locked in the inner cavity of the sliding rod by the mounting plate.
[0009] Furthermore, a roller is installed at the bottom of the sliding rod, and a guide groove is provided at the bottom of the freeze-drying chamber to cooperate with the roller.
[0010] Furthermore, a limiting plate is fixedly installed on the top of the opposite side of the heating plate.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model uses a sliding rod to drive the connecting rods on both sides to slide back and forth in the inner cavity of the freeze-drying chamber, thereby turning the rice slurry powder in the inner cavity of the material tray by the turning rod, so that the rice slurry powder has an irregular shape during freeze-drying, increasing the surface area and improving the freeze-drying efficiency.
[0013] 2. The present invention, through the design of the tipping rod, facilitates the breaking and tipping of the frozen rice slurry powder in the material tray when the rice slurry powder in the material tray is heated and sublimated.
[0014] 3. By setting up rollers and guide grooves, this utility model improves the stability of the sliding rod by having the rollers roll inside the guide groove when the sliding rod slides in the inner cavity of the freeze-drying chamber.
[0015] 4. This utility model can limit the material pallet by setting a limiting plate, so as to prevent the material pallet from moving during the material turning process and affecting the material turning. Attached Figure Description
[0016] The advantages of the present invention in the above and / or other aspects will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the present invention, wherein:
[0017] Figure 1 This is a perspective view of one embodiment of the present invention in use;
[0018] Figure 2 This is a perspective view of one embodiment of the present utility model;
[0019] Figure 3 This is a partial three-dimensional disassembled schematic diagram of one embodiment of the present utility model;
[0020] Figure 4 This is a three-dimensional schematic diagram of a material-turning rod according to an embodiment of the present invention.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Freeze dryer body; 2. Freeze drying chamber; 3. Heating plate; 4. Material tray; 5. Sliding rod; 6. Connecting rod; 7. Tilting rod; 8. Sliding block; 9. Guide column; 10. Threaded rod; 11. Clamping block; 12. Mounting plate; 13. Bolt; 14. Roller; 15. Guide groove; 16. Limiting plate. Detailed Implementation
[0023] In the following description, embodiments of the freeze dryer for processing freeze-dried rice flour according to the present invention will be described with reference to the accompanying drawings.
[0024] Figure 1-4 This invention illustrates a freeze dryer for processing freeze-dried rice flour according to an embodiment of the present invention, comprising:
[0025] The freeze dryer body 1 has a freeze drying chamber 2 located on the front side of the freeze dryer body 1.
[0026] It also includes heating plates 3, which are symmetrically installed in the inner cavity of the freeze-drying chamber 2. The heating plates 3 on both sides are arranged at equal intervals, and a material tray 4 is placed on top of the heating plates 3.
[0027] This includes a sliding rod 5 located in the middle of the inner cavity of the freeze-drying chamber 2. The sliding rod 5 slides back and forth within the inner cavity of the freeze-drying chamber 2. Specifically, a sliding block 8 is welded to the top of the sliding rod 5. Two guide posts 9 are fixedly installed at the top of the inner cavity of the freeze-drying chamber 2. The sliding block 8 slides on the surface of the guide posts 9. Specifically, a threaded rod 10 is provided between the two guide posts 9. The threaded rod 10 rotates at the top of the inner cavity of the freeze-drying chamber 2 and extends to the rear side of the freeze dryer body 1. A motor is installed at the rear side of the freeze dryer body 1. The output shaft of the motor and the threaded rod 10 are fixedly installed. Multiple connecting rods 6 are symmetrically installed on both sides of the sliding rod 5. Specifically, a locking block 11 is fixedly installed on the side of the connecting rod 6 closest to the sliding rod 5. The front side of the moving rod 5 is provided with a slot for cooperating with the locking block 11. The front side of the sliding rod 5 is fixedly installed with a mounting plate 12 by bolts 13. The mounting plate 12 locks the locking block 11 in the inner cavity of the sliding rod 5. Specifically, a roller 14 is installed at the bottom of the sliding rod 5. A guide groove 15 is provided at the bottom of the inner cavity of the freeze-drying chamber 2 for cooperating with the roller 14. With the setting of the roller 14 and the guide groove 15, when the sliding rod 5 slides in the inner cavity of the freeze-drying chamber 2, the roller 14 will roll in the inner cavity of the guide groove 15, thereby improving the sliding stability of the sliding rod 5. A turning rod 7 is installed at the bottom of the connecting rod 6. The bottom of the turning rod 7 extends to the inner cavity of the material tray 4 and slides back and forth in the inner cavity of the material tray 4.
[0028] The front and rear ends of the tipping rod 7 are both set with sharp corners. By setting the shape of the tipping rod 7, when the rice slurry powder in the material tray 4 is heated and sublimated, it is easy for the tipping rod 7 to break the ice and tip the frozen rice slurry powder in the material tray 4.
[0029] Specifically, a limiting plate 16 is fixedly installed on the top of the opposite side of the heating plate 3. By setting the limiting plate 16, the material tray 4 can be limited to prevent the material tray 4 from moving during the material turning process, which would affect the material turning.
[0030] Working principle: When using this utility model, the user places the material trays 4 containing rice flour powder one by one on top of the heating plate 3, and inserts the locking block 11 into the slot in the sliding rod 5 to install the connecting rod 6. Then, the user rotates the bolt 13 to install the mounting plate 12, thereby locking the connecting rod 6 to both sides of the sliding rod 5. Then, the sealing door is closed, and the rice flour powder is frozen by the freeze dryer body 1. During the freezing process, the rotation of the threaded rod 10 drives the sliding block 8 to slide on the surface of the guide post 9, thereby driving the sliding... The rod 5 slides back and forth in the inner cavity of the freeze-drying chamber 2, which in turn drives the connecting rods 6 on both sides of the sliding rod 5 to slide back and forth in the inner cavity of the freeze-drying chamber 2. This causes the turning rod 7 to slowly turn the rice slurry powder in the inner cavity of the material tray 4, making the rice slurry powder irregular in shape when frozen, increasing the surface area and improving the freezing efficiency. Subsequently, when the heating plate 3 in the freeze dryer body 1 heats the rice powder to sublimate the water in the rice powder, the threaded rod 10 is rotated to make the turning rod 7 slowly turn the rice slurry powder in the inner cavity of the material tray 4, thereby improving the efficiency of water sublimation in the rice slurry powder.
[0031] In summary, this freeze dryer for processing rice flour uses a sliding rod 5 to drive the connecting rods 6 on both sides to slide back and forth in the inner cavity of the freeze-drying chamber 2. This causes the turning rod 7 to turn the rice flour in the inner cavity of the material tray 4, making the rice flour irregular in shape during freeze-drying, increasing the surface area, and improving the freeze-drying efficiency.
Claims
1. A freeze dryer for processing freeze-dried rice flour, characterized in that, include: Freeze dryer body (1), and a freeze drying chamber (2) is provided on the front side of the freeze dryer body (1); Heating plate (3), the heating plate (3) is symmetrically installed in the inner cavity of the freeze-drying chamber (2), the heating plates (3) on both sides are arranged at equal intervals, and a material tray (4) is placed on the top of the heating plate (3); A sliding rod (5) is provided in the middle of the inner cavity of the freeze-drying chamber (2). The sliding rod (5) slides back and forth in the inner cavity of the freeze-drying chamber (2). Multiple connecting rods (6) are symmetrically installed on the left and right sides of the sliding rod (5). A turning rod (7) is installed at the bottom of the connecting rod (6). The bottom of the turning rod (7) extends to the inner cavity of the material tray (4) and slides back and forth in the inner cavity of the material tray (4). The front and rear ends of the tipping rod (7) are both set with sharp corners.
2. The freeze-drying machine for processing freeze-dried rice milk powder according to claim 1, characterized in that, A sliding block (8) is welded to the top of the sliding rod (5), and two guide posts (9) are fixedly installed on the top of the inner cavity of the freeze-drying chamber (2). The sliding block (8) slides on the surface of the guide posts (9).
3. The freeze-drying machine for processing freeze-dried rice milk powder according to claim 2, characterized in that, A threaded rod (10) is provided between the two guide columns (9). The threaded rod (10) rotates at the top of the freeze-drying chamber (2) and extends to the rear side of the freeze dryer body (1). A motor is installed on the rear side of the freeze dryer body (1). The output shaft of the motor and the threaded rod (10) are fixedly installed.
4. The freeze-drying machine for processing freeze-dried rice milk powder according to claim 1, characterized in that, A locking block (11) is fixedly installed on the side of the connecting rod (6) near the sliding rod (5). A slot for cooperating with the locking block (11) is opened on the front side of the sliding rod (5). An mounting plate (12) is fixedly installed on the front side of the sliding rod (5) by bolts (13). The locking block (11) is locked in the inner cavity of the sliding rod (5) by the mounting plate (12).
5. The freeze dryer for processing freeze-dried rice flour according to claim 1, characterized in that, The bottom of the sliding rod (5) is equipped with a roller (14), and the bottom of the freeze-drying chamber (2) is provided with a guide groove (15) that works in conjunction with the roller (14).
6. The freeze-drying machine for processing freeze-dried rice milk powder according to claim 1, characterized in that, A limiting plate (16) is fixedly installed on the top of the opposite side of the heating plate (3).