A continuous low-temperature drying device suitable for rice processing
By using a motor-driven disc to move the box and cooperating with the guide components, the problems of uneven drying and physical damage to rice are solved, achieving uniform drying and efficient low-temperature processing, thus improving the quality of the finished rice product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SWEET FAYAN IND LTD CO OF GUANGDONG PROVINCE
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-02
AI Technical Summary
In existing rice processing equipment, hot air has difficulty penetrating the bottom accumulation layer, resulting in uneven drying. Furthermore, the stirring process can easily damage the rice grains, affecting product uniformity and quality.
The system uses a motor-driven disc to move a linkage rod, causing the box to reciprocate within the chamber. Combined with a guide assembly and a temperature sensor, it ensures that hot air penetrates evenly. The system also maintains a low-temperature, dry environment through the hot air assembly and the exhaust assembly, preventing physical damage.
This method achieves uniformity in rice drying and improves the quality of the finished product, avoids high-temperature damage, and enhances drying efficiency and product quality.
Smart Images

Figure CN224316715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice processing technology, and in particular to a continuous low-temperature drying device suitable for rice processing. Background Technology
[0002] In the rice processing industry, continuous low-temperature drying equipment achieves rice dehydration and drying through low-temperature hot air circulation, which is a key piece of equipment to ensure rice quality and production efficiency.
[0003] However, existing technologies still have significant shortcomings. On the one hand, rice tends to form a dense bottom layer in the drying box, making it difficult for hot air to penetrate effectively. This results in a significant difference in the degree of drying between the bottom and top layers of rice, which seriously affects the uniformity of the product. On the other hand, some devices use a stirring structure to improve the drying effect, but the stirring process can easily cause physical damage to the rice grains, reducing the quality of the finished product. Therefore, a continuous low-temperature drying device suitable for rice processing is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a continuous low-temperature drying device suitable for rice processing, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A continuous low-temperature drying device suitable for rice processing includes a housing. A temperature sensor is installed on the inner wall of one side of the housing. A guide assembly is installed inside the housing. A box is installed inside the housing via the guide assembly. The box is through-shaped. A connecting seat is fixedly installed on one side of the box. A linkage rod is movably sleeved inside the connecting seat. A disc is installed on one side of the box. A fixing column is fixedly installed on the top side of the disc. The other end of the linkage rod is movably sleeved on the outside of the fixing column. A drive assembly is installed below the disc. An inlet pipe and an outlet pipe are respectively installed on the top and bottom sides of the housing. A hot air assembly and an exhaust assembly are respectively installed on both sides of the inlet pipe. Two inclined plates are fixedly installed on the inner wall of the bottom side of the housing. The outlet pipe is located between the two inclined plates.
[0007] Preferably, the guide assembly includes two guide rods fixedly installed on the inner wall of the box, and sliders slidably sleeved on the outer sides of the two guide rods, with the opposite surfaces of the two sliders fixedly connected to the two sides of the box respectively.
[0008] Preferably, the drive assembly includes a side plate fixedly installed on one side of the housing, a motor fixedly installed on the bottom side of the side plate, and the output end of the motor rotating through the side plate and fixedly connected to the bottom side of the disc.
[0009] Preferably, the hot air assembly includes a hot air fan fixedly installed on the top side of the housing, a hot air pipe fixedly installed on one side of the hot air fan, and the other end of the hot air pipe passing through the housing and facing the housing.
[0010] Preferably, the exhaust assembly includes a blower fixedly installed on the top side of the housing, an exhaust pipe fixedly installed on one side of the blower, the other end of the exhaust pipe extending into the housing, and an exhaust pipe fixedly connected to the other side of the blower.
[0011] Preferably, a socket is provided on one side of the box body, and a baffle is inserted into the socket. One side of the baffle is in contact with the inner wall of one side of the box body. A fixing frame is fixedly installed on one side of the box body. The fixing frame is L-shaped, and an electric push rod is fixedly installed on one side of the fixing frame. The output end of the electric push rod passes through the fixing frame and is fixedly connected to one side of the baffle.
[0012] Preferably, four support legs are fixedly installed on the bottom side of the box, and a collection box is arranged between the four support legs, with the collection box located below the discharge pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The motor drives the disc to rotate, and the fixed column on the disc cooperates with the linkage rod to make the box move back and forth inside the chamber. This allows the rice piled at the bottom of the box to move fully, and the hot air can penetrate better, ensuring that the rice in the upper and lower layers dries evenly. At the same time, the guide rod and slider in the guide assembly ensure the stability of the box movement, further improving the drying effect. In addition, the temperature sensor monitors the temperature in real time to ensure that the rice is always in a low-temperature drying state, avoiding the impact of high temperature on the quality of the rice.
[0015] 2. This device achieves rice turning by reciprocating movement of the box, avoiding physical damage to rice grains during the stirring process, thereby improving the quality of the finished product. In addition, the design of the hot air component and exhaust component allows the hot air inside the box to be refreshed in a timely manner, keeping it dry and further improving the drying effect. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of some parts of the linkage rod structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the baffle part of the structure of this utility model.
[0020] In the diagram: 1. Box body; 2. Guide rod; 3. Slider; 4. Box body; 5. Connecting seat; 6. Linkage rod; 7. Side plate; 8. Motor; 9. Disc; 10. Fixed column; 11. Fixed frame; 12. Electric push rod; 13. Baffle; 14. Feed pipe; 15. Inclined plate; 16. Discharge pipe; 17. Collection box; 18. Temperature sensor; 19. Hot air blower; 20. Hot air pipe; 21. Blower; 22. Exhaust pipe; 23. Exhaust pipe; 24. Support leg. Detailed Implementation
[0021] 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.
[0022] Reference Figure 1-4 A continuous low-temperature drying device suitable for rice processing includes a housing 1. A temperature sensor 18 is installed on the inner wall of one side of the housing 1. A guide assembly is installed inside the housing 1. A box 4 is installed inside the housing 1 via the guide assembly. The box 4 is through-hole shaped. A connecting seat 5 is fixedly installed on one side of the box 4. A linkage rod 6 is movably sleeved inside the connecting seat 5. A disc 9 is installed on one side of the housing 1. A fixing column 10 is fixedly installed on the top side of the disc 9. The other end of the linkage rod 6 is movably sleeved on the outside of the fixing column 10. A drive assembly is installed below the disc 9. An inlet pipe 14 and an outlet pipe 16 are respectively installed on the top and bottom sides of the housing 1. A hot air assembly and an exhaust assembly are respectively installed on both sides of the inlet pipe 14. Two inclined plates 15 are fixedly installed on the inner wall of the bottom side of the housing 1. The outlet pipe 16 is located between the two inclined plates 15. The drive assembly includes the components of the housing 1. A side plate 7 is fixedly installed on one side, and a motor 8 is fixedly installed on the bottom side of the side plate 7. The output end of the motor 8 rotates through the side plate 7 and is fixedly connected to the bottom side of the disc 9. By setting the motor 8, when it is necessary to drive the box 4 to move back and forth, the motor 8 is started to drive the disc 9 to rotate. Because a fixed column 10 is fixedly installed on the top side of the disc 9, and a linkage rod 6 is movably sleeved on the outside of the fixed column 10, and because the other end of the linkage rod 6 is movably sleeved in the connecting seat 5, when the motor 8 drives the fixed column 10 fixedly installed on the top side of the disc 9 to rotate, the movement trajectory of the linkage rod 6 will change, thereby pulling the box 4 fixedly connected to one side of the connecting seat 5 to move back and forth in the box 1. Through the back and forth movement of the box 4, the rice piled at the bottom can be fully moved, thereby allowing the rice piled at the bottom to be fully dried.
[0023] Specifically, the guide assembly includes two guide rods 2 fixedly installed on the inner wall of the housing 1, and sliders 3 slidably sleeved on the outer side of each guide rod 2. The opposite surfaces of the two sliders 3 are fixedly connected to the two sides of the housing 4. By setting two guide rods 2 and two sliders 3, when the housing 4 moves, the two sliders 3 will be driven to slide synchronously on the two guide rods 2, thereby ensuring the stability of the movement of the housing 4.
[0024] Specifically, the hot air assembly includes a hot air blower 19 fixedly installed on the top side of the housing 1, a hot air pipe 20 fixedly installed on one side of the hot air blower 19, and the other end of the hot air pipe 20 penetrating the housing 1 and facing the box 4. The exhaust assembly includes a blower 21 fixedly installed on the top side of the housing 1, an exhaust pipe 22 fixedly installed on one side of the blower 21, the other end of the exhaust pipe 22 extending into the housing 1, and an exhaust pipe 23 fixedly connected to the other side of the blower 21. By providing the hot air blower 19, the operation of the hot air blower 19 delivers heat to the housing through the hot air pipe 20. The rice inside the box 4 is dried by a temperature sensor 18 installed inside the box 1. This sensor monitors the temperature inside the box 1 in real time, ensuring that the rice is always dried at a low temperature. A blower 21 is installed, and after the box 4 moves for a period of time, the blower 21 is started to draw the hot air that has absorbed the moisture from the rice out of the box 1 through the exhaust pipe 22. The hot air that has absorbed the moisture is then discharged through the exhaust pipe 23, thus ensuring that the inside of the box 1 is always kept dry.
[0025] Specifically, a socket is provided on one side of the box body 4, and a baffle 13 is inserted into the socket. One side of the baffle 13 is attached to the inner wall of one side of the box body 4. A fixing frame 11 is fixedly installed on one side of the box body 4. The fixing frame 11 is L-shaped. An electric push rod 12 is fixedly installed on one side of the fixing frame 11. The output end of the electric push rod 12 passes through the fixing frame 11 and is fixedly connected to one side of the baffle 13. With the baffle 13, when the dried rice needs to be poured into the collection box 17, the electric push rod 12 is started to drive the baffle 13 to retract. During the retraction of the baffle 13, the rice will fall through the through hole in the box body 4 into the discharge pipe 16, and then fall into the collection box 17 due to inertia.
[0026] Specifically, four support legs 24 are fixedly installed on the bottom side of the box body 1, and a collection box 17 is set between the four support legs 24. The collection box 17 is located below the discharge pipe 16. The collection box 17 is used to collect the rice discharged from the discharge pipe 16. Since two inclined plates 15 are fixedly installed on the bottom inner wall of the box body 1, and the discharge pipe 16 is located between the two inclined plates 15, the rice falls from the through hole opened in the box body 4. The two inclined plates 15 can play a guiding role, so that the dried rice falls accurately into the discharge pipe 16.
[0027] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.
[0028] In use: The rice to be dried is fed into the box 4 through the feed pipe 14. Then, the hot air blower 19 is started, and the hot air generated enters the chamber 1 through the hot air pipe 20 to dry the rice in the box 4 at a low temperature. During the drying process, the motor 8 drives the disc 9 to rotate, and the fixed column 10 on the top of the disc 9 moves accordingly, driving the linkage rod 6 to perform planar motion. The other end of the linkage rod 6 is hinged to the connecting seat 5 on the side of the box 4, thereby converting the circular motion into the reciprocating linear motion of the box 4 in the chamber 1. This continuously loosens the rice layer accumulated at the bottom of the box 4, significantly improving the penetration of hot air and ensuring uniform drying of the upper and lower layers. Temperature sensing The device 18 monitors the temperature inside the box 1 in real time to ensure that the drying process is maintained within the set low temperature range to prevent high temperature damage to the quality of the rice grains. When the box 4 reciprocates for a set time, the blower 21 starts and draws out the humid and hot air containing moisture from the box 1 through the air extraction pipe 22 and discharges it through the exhaust pipe 23, thereby achieving humidity control of the drying environment. After drying is completed, the electric push rod 12 drives the baffle 13 to retract, and the through hole at the bottom of the box 4 opens. The dried rice falls into the collection box 17 through the discharge pipe 16 to complete the unloading. After unloading, the electric push rod 12 pushes the baffle 13 to reset again, and the next batch of rice to be dried can be poured in.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous low-temperature drying device suitable for rice processing, comprising a housing (1), characterized in that, A temperature sensor (18) is provided on one inner wall of the box (1). A guide assembly is provided inside the box (1). A box (4) is provided inside the box (1) through the guide assembly. The box (4) is through-hole. A connecting seat (5) is fixedly installed on one side of the box (4). A linkage rod (6) is movably sleeved inside the connecting seat (5). A disc (9) is provided on one side of the box (1). A fixing column (10) is fixedly installed on the top side of the disc (9). The other end of the linkage rod (6) is movably sleeved on the outside of the fixing column (10). A drive assembly is provided below the disc (9). A feed pipe (14) and a discharge pipe (16) are provided on the top and bottom sides of the box (1), respectively. A hot air assembly and an exhaust assembly are provided on both sides of the feed pipe (14), respectively. Two inclined plates (15) are fixedly installed on the bottom inner wall of the box (1). The discharge pipe (16) is located between the two inclined plates (15).
2. The continuous low-temperature drying device for rice processing according to claim 1, characterized in that, The guiding assembly includes two guide rods (2) fixedly installed on the inner wall of the housing (1), and sliders (3) are slidably sleeved on the outer side of each of the two guide rods (2). The opposite surfaces of the two sliders (3) are fixedly connected to the two sides of the housing (4).
3. The continuous low-temperature drying device for rice processing according to claim 1, characterized in that, The drive assembly includes a side plate (7) fixedly installed on one side of the housing (1), and a motor (8) fixedly installed on the bottom side of the side plate (7). The output end of the motor (8) rotates through the side plate (7) and is fixedly connected to the bottom side of the disc (9).
4. A continuous low-temperature drying device suitable for rice processing according to claim 1, characterized in that, The hot air assembly includes a hot air blower (19) fixedly installed on the top side of the housing (1), a hot air pipe (20) fixedly installed on one side of the hot air blower (19), and the other end of the hot air pipe (20) passing through the housing (1) and facing the box body (4).
5. A continuous low-temperature drying device suitable for rice processing according to claim 1, characterized in that, The exhaust assembly includes a blower (21) fixedly installed on the top side of the housing (1), an exhaust pipe (22) fixedly installed on one side of the blower (21), the other end of the exhaust pipe (22) extending into the housing (1), and an exhaust pipe (23) fixedly connected to the other side of the blower (21).
6. A continuous low-temperature drying device suitable for rice processing according to claim 1, characterized in that, A socket is provided on one side of the box body (4), and a baffle (13) is inserted into the socket. One side of the baffle (13) is in contact with the inner wall of one side of the box body (4). A fixing frame (11) is fixedly installed on one side of the box body (4). The fixing frame (11) is L-shaped. An electric push rod (12) is fixedly installed on one side of the fixing frame (11). The output end of the electric push rod (12) passes through the fixing frame (11) and is fixedly connected to one side of the baffle (13).
7. A continuous low-temperature drying device for rice processing according to claim 1, characterized in that, Four support legs (24) are fixedly installed on the bottom side of the box (1), and the same collection box (17) is arranged between the four support legs (24). The collection box (17) is located below the discharge pipe (16).