Separating equipment for rice drying

By designing a separation device for rice drying, impurities are separated using a blower fan and the rice grains are broken up using spiral blades. This achieves effective separation of impurities in the rice grains and uniform contact of hot air, solving the problem of uneven rice drying, improving drying efficiency and quality, and ensuring storage stability.

CN224230539UActive Publication Date: 2026-05-12ZHEJIANG WANLI SHENNONG AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG WANLI SHENNONG AGRI TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Impurities in rice affect the drying effect, and stacking high-moisture rice leads to uneven drying inside, affecting quality and storage stability.

Method used

A separation device for drying rice was designed, comprising a movable base, a drum, spiral blades, a fan, and a drying and heating device. Impurities are separated through the separation channel and the fan, and the spiral blades are used to break up the rice grains, which are then dried evenly with hot air.

Benefits of technology

It effectively separates impurities from rice, ensures uniform contact between hot air and rice, improves drying efficiency and rice quality, and guarantees storage stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses separation equipment for drying rice, which comprises a movable base and a feed hopper, the arc-shaped top of the movable base is rotatably connected with a drum, a spiral blade is arranged in the drum, the spiral blade rotates to scatter stacked rice, a movable plate is rotatably mounted on one side of the drum, and the movable plate is rotatably mounted on the other side of the drum. A driving mechanism is arranged on the outer side wall of the drum, a movable plate is arranged at the feeding end of the drum, a feeding separation mechanism and a drying heating device are connected to one side of the movable feeding plate, the feeding separation mechanism comprises a separation channel, a material guide pipe and a waste opening are formed in the bottom of the separation channel, and an air supply fan is arranged at the position, opposite to the waste opening, in the separation channel; impurities entering together with rice are blown away and separated through airflow blown out by the air supply fan, the separated impurities fall into the waste opening, the spiral blades arranged in the drum rotate to scatter the stacked rice, hot air output by the drying and heating device makes full contact with the surface of the rice, and the drying effect is improved.
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Description

Technical Field

[0001] This application relates to the field of agricultural drying, specifically a separation device for drying rice. Background Technology

[0002] Freshly harvested rice typically has a high moisture content, generally around 20%-30%, while rice suitable for long-term storage requires a moisture content of around 13.5%-14.5%. If the moisture content of the rice is not reduced in time, it is prone to heating, mold, and spoilage, affecting its quality and taste, reducing its nutritional and economic value, and even leading to food waste. If harvested rice is piled together, it is easy to absorb water and germinate under suitable temperature and humidity conditions. After drying, the moisture content of the rice is reduced to a safe level, which can effectively inhibit germination and ensure its stability during storage and transportation.

[0003] In actual rice drying, the rice is often poured directly into the drying equipment. However, rice usually contains various impurities such as straw, broken leaves, and rice husks. These impurities directly affect the drying effect of the rice as it dries. Therefore, the rice to be dried needs to be pre-treated. The effect of the pre-treatment directly affects the drying efficiency and the final quality. In addition, during the rice drying process, a large amount of rice with high moisture content will be piled together. The rice piled inside has a poor drying effect, and the rice on the outside is often over-dried while the rice inside is poorly dried.

[0004] Therefore, a separation device for rice drying is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a separation device for rice drying to solve the above problems, thereby addressing the issues raised in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a separation device for rice drying, comprising a movable base and a feeding hopper, characterized in that: a drum is rotatably connected to the arc-shaped top of the movable base; the drum has spiral blades inside; a driving mechanism is provided on the outer wall of the drum; a movable plate is provided at the feeding end of the drum; the movable plate is rotatably mounted on one side of the drum; the movable plate is fixedly mounted on one side of the base; and the movable plate is respectively...

[0007] The device is connected to a feeding and separating mechanism and a drying and heating device. The feeding and separating mechanism includes a separating channel. The bottom of the separating channel is provided with a guide pipe and a waste outlet. A fan is provided in the separating channel at a position opposite to the waste outlet.

[0008] Preferably, a drive device is connected to one side of the fan, a filter screen for filtration is provided at the output end of the fan, and a waste collection box is connected to the waste outlet.

[0009] Preferably, the drive mechanism includes a passive gear fixedly mounted on the outer wall of the drum, a drive gear meshing with one side of the passive gear, and a drive motor fixedly connected to one side of the drive gear.

[0010] Preferably, the drying and heating device includes an air duct connected to the movable plate, the other end of the air duct being fixedly connected to a drying chamber, and the input end of the drying chamber being fixedly connected to a fan.

[0011] Preferably, the separation channel is arranged in an inverted V shape, and a support frame for support is connected to the bottom of the separation channel.

[0012] Preferably, the output ends of the feed pipe and the air conveyor pipe are connected to the movable plate and extend into the interior of the drum.

[0013] Preferably, the outer side wall of the drum is provided with a groove, and the arc-shaped top of the movable base is provided with multiple rollers, each of which is adapted to the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a unique design with a fan and an inverted V-shaped separation channel to separate various impurities such as straw, broken leaves, and rice husks that enter along with the rice. The rice is then conveyed into the drum through a guide pipe. Inside the drum, spiral blades disperse the rice that is damp and piled together, allowing the surface of the rice husks to come into more even contact with the hot air, thereby achieving a better drying effect. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the internal structure of the drum of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the separation channel of this utility model;

[0019] Figure 4 This is a schematic diagram of the feeding and separating mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the drying and heating device of this utility model;

[0021] Figure 6This is a schematic diagram of the drum drive mechanism of this utility model.

[0022] In the diagram: 1. Movable base; 2. Drum; 3. Driven gear; 4. Spiral blade; 5. Waste inlet; 6. Waste collection box; 7. Drive gear; 8. Guide pipe; 9. Separation channel; 10. Feed hopper;

[0023] 11. Drive unit; 12. Fan; 13. Baffle; 14. Support frame; 15. Movable plate; 16. Air duct; 17. Dryer box; 18. Fan; 19. Motor; 20. Roller; 21. Groove. Detailed Implementation

[0024] 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.

[0025] Example: Please refer to Figure 1-5 This utility model provides a technical solution: a separation device for drying rice, including a movable base 1 and a feeding hopper 10. A drum 2 is rotatably connected to the arc-shaped top of the movable base 1. The drum 2 is provided with a spiral blade 4 inside, which rotates and disperses the stacked rice. A drive mechanism is provided on the outer wall of the drum 2. A movable plate 15 is provided at the feeding end of the drum 2. The movable plate 15 is rotatably installed on one side of the drum 2 and fixedly installed on one side of the base 1. A feeding separation mechanism and a drying heating device are respectively connected to one side of the movable plate 15. The feeding separation mechanism includes a separation channel 9. A guide pipe 8 and a waste port 5 are respectively provided at the bottom of the separation channel 9. A fan 12 is provided in the separation channel 9 at a position opposite to the waste port 5. The fan 12 blows and separates the impurities that enter with the rice. The separated impurities fall into the waste port 5.

[0026] The fan 12 is connected to a drive unit 11 on one side, and the output end of the fan 12 is provided with a filter screen 13 for filtering. The waste port 5 is connected to a waste collection box 6. The impurities and waste separated by the fan 12 fall from the waste port 5 into the waste collection box 6 for easy collection.

[0027] The drive mechanism includes a passive gear 3 fixedly mounted on the outer wall of the drum 2. A drive gear 7 is meshed on one side of the passive gear 3. A drive motor 19 is fixedly connected to one side of the drive gear 7. The drive motor 19 rotates and drives the drive gear 7. The drive gear 7 meshes with the passive gear 3 and rotates, thus driving the drum 2 to rotate.

[0028] The drying and heating device includes an air duct 16 connected to the movable plate 15. The other end of the air duct 16 is fixedly connected to the drying chamber 17. The input end of the drying chamber 17 is fixedly connected to a fan 18. The fan 18 delivers air into the drying chamber 17 for heating. The drying chamber 17 delivers hot air into the drum 2 through the air duct 16 to dry the rice.

[0029] The separation channel 9 is designed with an inverted V-shape inside to separate and guide impurities and rice grains. The bottom of the separation channel 9 is connected to a support frame 14 for support. After separation, the rice grains and impurities are guided to the feed pipe 8 and the waste port 5 respectively through the inverted V-shaped channel.

[0030] The output ends of the feed pipe 8 and the air conveyor pipe 16 pass through the movable plate 15 and extend into the interior of the drum 2, conveying rice and hot air into the interior of the drum. The feed pipe 8 and the air conveyor pipe 16 are fixed to the movable plate 15.

[0031] The outer wall of the drum 2 has a groove 21, and the top of the movable base 1 is provided with multiple rollers 20. The multiple rollers 20 are adapted to the grooves 21. When the drum 2 rotates, the rollers 20 in the grooves 21 rotate relative to each other.

[0032] The working principle is as follows: When in use, the rice enters the separation channel 9 through the feed hopper 10. Then, the fan 12 installed in the separation channel 9 blows air to separate the rice from impurities. The separated rice and impurities are guided to the guide pipe 8 and the waste port 22 through the inverted V-shaped separation channel 9, respectively. The separated rice enters the drum 2 through the guide pipe. At the same time, the air conveying pipe 16 delivers the heat-treated hot air into the drum 2. The spiral blades 4 inside the drum 2 break up the stacked rice, and the rice comes into full contact with the hot air for drying. The dried rice is discharged from the drum through the discharge inclined plate.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that these embodiments can be modified without departing from the principles and spirit of the present invention.

[0034] The embodiments may be varied, modified, replaced and modified in many ways, and the scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A separating device for drying rice, comprising a movable base (1) and a feeding hopper (10), characterized in that: The curved top of the movable base (1) is rotatably connected to a drum (2). The drum (2) is provided with a spiral blade (4) inside. The outer wall of the drum (2) is provided with a driving mechanism. The feed end of the drum (2) is provided with a movable plate (15). The movable plate (15) is rotatably installed on one side of the drum (2). The movable plate (15) is fixedly installed on one side of the movable base (1). The feed separation mechanism and the drying heating device are respectively connected to one side of the movable plate (15). The feed separation mechanism includes a separation channel (9). The bottom of the separation channel (9) is provided with a guide pipe (8) and a waste port (5). A fan (12) is provided in the separation channel (9) at the relative position of the waste port (5).

2. The rice drying separation device according to claim 1, characterized in that: A drive unit (11) is connected to one side of the blower fan (12), and a filter screen (13) for filtering is provided at the output end of the blower fan (12). A waste collection box (6) is connected to the waste port (5).

3. The rice drying separation device according to claim 1, characterized in that: The drive mechanism includes a passive gear (3) fixedly mounted on the outer wall of the drum (2), a drive gear (7) meshing on one side of the passive gear (3), and a drive motor (19) fixedly connected to one side of the drive gear (7).

4. The rice drying separation device according to claim 1, characterized in that: The drying and heating device includes an air duct (16) connected to the movable plate (15), and a drying chamber (17) is fixedly connected to the other end of the air duct (16). A fan (18) is fixedly connected to the input end of the drying chamber (17).

5. The rice drying separation device according to claim 3, characterized in that: The separation channel (9) is arranged in an inverted V shape inside, and a support frame (14) for support is connected to the bottom of the separation channel (9).

6. The rice drying separation device according to claim 1, characterized in that: The output ends of the feed pipe (8) and the air supply pipe (16) are connected to the movable plate (15) and extend into the interior of the drum (2).

7. The rice drying separation device according to claim 1, characterized in that: The outer side wall of the drum (2) is provided with a groove (21) and the top of the movable base (1) is provided with multiple rollers (20), and the multiple rollers (20) are adapted to the grooves (21).