Rice cooling bin for rice production
By designing a rice cooling silo with a material distribution mechanism and a multi-layer screening mechanism, the problem of uneven rice accumulation was solved, achieving efficient screening and cooling, and improving the quality of finished rice products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHANG HEJIAHUAN FOOD CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-19
AI Technical Summary
In existing rice cooling silos used in rice production, a large amount of rice accumulates in the middle of the sieve, resulting in uneven screening and cooling effects, which affects screening efficiency and cooling performance.
A rice cooling bin was designed, comprising a bin body, bin cover, material distribution mechanism, fan, feeding pipe and screening mechanism. The material distribution mechanism evenly distributes the rice, which is then screened multiple times using a multi-layer filter and screening mechanism, and cooled by a fan.
This improved the efficiency of rice screening and cooling, ensuring uniform rice stacking and enhancing the quality of the finished product.
Smart Images

Figure CN224252875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice production technology, specifically to a rice cooling bin for rice production. Background Technology
[0002] Rice, also known as paddy rice, is a food made from paddy through processes such as cleaning, hulling, milling, and finishing. Rice is a staple food for people in most parts of China. Rice storage warehouses are mainly used for storing raw grains, such as rice and millet. Their main function is to cool the rice. After milling, excess moisture and heat in the rice are released through the cooling process, which is beneficial for the storage, transportation, and preservation of the finished grain.
[0003] According to Chinese Utility Model Application No. 202420484514.8, a rice processing cooling bin is proposed. The utility model describes a device that, through the combined use of a first motor, a first rotating rod, an eccentric wheel, a mounting block, a slider, a screening box, and a screen, enables the device to control the start of the first motor, thereby rotating the first rotating rod, which in turn drives the eccentric wheel. The mounting block and slider allow the eccentric wheel to cause the screening box to perform a certain longitudinal reciprocating motion, creating gaps between the rice grains. This allows the cold air to be more evenly distributed across the surface of the rice, thus better cooling it. The screen effectively filters out impurities from the rice, preventing them from entering the collection box and affecting the quality of the collected rice.
[0004] In this rice processing cooling bin, rice enters the bin through a feed pipe and falls onto the top of a screen. The screen continuously sieves the rice, and cooling fan blades cool it. However, the rice tends to accumulate in the middle of the screen, with more rice in the center and less around the edges, making it difficult to cool the rice in the center. When the screen vibrates, although the rice in the center gradually moves to the edges, the accumulation is still uneven, affecting both the sieving and cooling effects. Therefore, an improvement is needed. This paper proposes a rice cooling bin for rice production to solve the above problems. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a rice cooling bin for rice production, which has the advantages of good cooling effect. It solves the problem that although the rice in the middle of the screen gradually moves to the periphery of the screen, the degree of rice accumulation is still uneven, which not only affects the screening effect, but also affects the cooling effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a rice cooling bin for rice production, comprising a bin body, a bin cover provided on the bin body, a first filter screen embedded inside the bin cover, a material distribution mechanism provided on the bin cover, a feeding hopper connected to the material distribution mechanism, a fan fixedly installed on the inner side wall of the bin body, a discharge pipe connected to the bottom of the bin body, and a screening mechanism provided on the bin body;
[0007] The material distribution mechanism includes a horizontal plate, which is fixedly connected to the top of the bin cover by a vertical rod. A motor is fixedly installed on the top of the horizontal plate. The output end of the motor passes through the horizontal plate and is fixedly installed with a rotating shaft. A material distribution plate is fixedly installed at the bottom of the rotating shaft. A scraper that fits against the top of the first filter screen is fixedly installed at the bottom of the material distribution plate. A first annular plate that matches the first filter screen is fixedly installed on the top of the bin cover.
[0008] Furthermore, the screening mechanism includes a second annular plate, which is fixedly connected to the inner wall of the silo. A lifting plate is slidably installed on the inner wall of the second annular plate. A second filter screen matching the second annular plate is fixedly installed on the outside of the lifting plate. An electric push rod is fixedly installed on the inner wall of the silo via an mounting plate. A first connecting plate is fixedly installed at the output end of the electric push rod. A spring is fixedly installed on the top of the first connecting plate. A second connecting plate is fixedly installed on the top of the spring.
[0009] Furthermore, a slider extending into the interior of the second annular plate is fixedly installed on the outside of the lifting plate, and a groove matching the slider is provided on the inner side wall of the second annular plate.
[0010] Furthermore, a third filter screen is fixedly installed on the inner wall of the silo at an angle, a discharge hole is opened on the outer wall of the silo, and a guide plate is fixedly installed on the outer wall of the silo.
[0011] Furthermore, the scraper has a high perimeter and a low center with a material distribution hole, and a sealing door is embedded in the outer wall of the first annular plate.
[0012] Furthermore, the inner bottom wall of the silo is higher around the perimeter and lower in the middle, and a valve is fixedly installed on the outside of the discharge pipe.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] This rice cooling silo for rice production consists of a silo body, a silo cover, a first filter screen, a material distribution mechanism, a feed hopper, a fan, a discharge pipe, and a screening mechanism. Rice enters the material distribution mechanism along the feed hopper, where it is distributed. The distributed rice passes through the first filter screen into the silo body and falls into the screening mechanism, increasing the uniformity of rice accumulation. The screening mechanism continuously screens the rice, and the fan facilitates the cooling of the screened rice. The screened rice is discharged along the discharge pipe, improving both screening and cooling efficiency. Attached Figure Description
[0015] Figure 1 This is a front view of the present utility model;
[0016] Figure 2 This is a front sectional view of the present invention;
[0017] Figure 3 This is a schematic diagram of the material distribution tray structure of this utility model;
[0018] Figure 4 This is a right sectional view of the present invention;
[0019] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.
[0020] In the diagram: 1. Bin body, 2. Bin cover, 21. First filter screen, 3. Material distribution mechanism, 31. Horizontal plate, 32. Motor, 33. Rotating shaft, 34. Material distribution plate, 35. Scraper, 36. First annular plate, 4. Feed hopper, 5. Fan, 6. Feed pipe, 7. Screening mechanism, 71. Second annular plate, 72. Lifting plate, 73. Second filter screen, 74. Electric push rod, 75. First connecting plate, 76. Spring, 77. Second connecting plate, 8. Third filter screen, 9. Guide plate. 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] Please see Figure 1-5This embodiment of a rice cooling bin for rice production includes a bin body 1, a bin cover 2 on the bin body 1, the bin cover 2 being bolted to the top of the bin body 1, a first filter screen 21 embedded inside the bin cover 2, a material distribution mechanism 3 on the bin cover 2, a feeding hopper 4 connected to the material distribution mechanism 3, a fan 5 fixedly installed on the inner side wall of the bin body 1, a discharge pipe 6 connected to the bottom of the bin body 1, the inner bottom wall of the bin body 1 being higher around the perimeter and lower in the middle, a valve fixedly installed on the outside of the discharge pipe 6, and a screening mechanism 7 on the bin body 1.
[0023] Specifically, rice enters the distribution mechanism 3 along the feed hopper 4. The distribution mechanism 3 distributes the rice. After distribution, the rice passes through the first filter screen 21 and enters the bin 1, falling into the interior of the screening mechanism 7, which increases the uniformity of rice accumulation. The screening mechanism 7 continuously screens the rice. The fan 5 facilitates the cooling of the screened rice. The screened rice is discharged along the discharge pipe 6, which not only improves the screening efficiency but also the cooling efficiency.
[0024] In this embodiment, the material dispensing mechanism 3 includes a horizontal plate 31, which is fixedly connected to the top of the bin cover 2 by a vertical rod. A motor 32 is fixedly installed on the top of the horizontal plate 31. The output end of the motor 32 passes through the horizontal plate 31 and is fixedly installed with a rotating shaft 33. A material dispensing disc 34 is fixedly installed at the bottom of the rotating shaft 33. A scraper 35 that fits against the top of the first filter screen 21 is fixedly installed at the bottom of the material dispensing disc 34. The top of the scraper 35 is high around the perimeter and low in the middle and has a material dispensing hole. The scraper 35 is made of rubber. A first annular plate 36 that matches the first filter screen 21 is fixedly installed on the top of the bin cover 2. A sealing door is embedded in the outer wall of the first annular plate 36.
[0025] Specifically, the rice falls to the top of the distributing plate 34. By turning on the motor 32, the motor 32 drives the rotating shaft 33, the distributing plate 34, the scraper 35, and the rice to rotate slowly and evenly. The rice falls down through the distributing hole. The first filter screen 21 continuously sieves the rice. Impurities are located at the top of the first filter screen 21. The scraper 35 moves the impurities to prevent clogging of the first filter screen 21. The sealed door can be opened to clean the impurities. The rice falls into the interior of the silo 1 through the first filter screen 21.
[0026] In this embodiment, the screening mechanism 7 includes a second annular plate 71, which is fixedly connected to the inner wall of the chamber 1. A lifting plate 72 is slidably installed on the inner wall of the second annular plate 71. A slider extending into the interior of the second annular plate 71 is fixedly installed on the outside of the lifting plate 72. A groove matching the slider is opened on the inner wall of the second annular plate 71. A second filter screen 73 matching the second annular plate 71 is fixedly installed on the outside of the lifting plate 72. An electric push rod 74 is fixedly installed on the inner wall of the chamber 1 through a mounting plate. A first connecting plate 75 is fixedly installed at the output end of the electric push rod 74. A spring 76 is fixedly installed on the top of the first connecting plate 75. A second connecting plate 77 is fixedly installed on the top of the spring 76.
[0027] Specifically, the rice falls to the top of the second filter screen 73. By activating the electric push rod 74, the electric push rod 74 drives the first connecting plate 75, spring 76, second connecting plate 77, lifting plate 72, second filter screen 73, and rice to move upward. By activating the electric push rod 74, the electric push rod 74 drives the first connecting plate 75, spring 76, and second connecting plate 77 to move downward. The second filter screen 73 and rice move downward under the influence of gravity. The spring 76 is compressed and deformed, causing the second filter screen 73 and rice to move up and down. The above steps are repeated to continuously sieve the rice. Impurities are located at the top of the second filter screen 73, and the rice falls downward through the second filter screen 73.
[0028] In this embodiment, a third filter screen 8 is fixedly installed on the inner side wall of the silo body 1 at an angle, a discharge hole is opened on the outer side wall of the silo body 1, and a guide plate 9 is fixedly installed on the outer side wall of the silo body 1.
[0029] Specifically, the rice falls onto the top of the third filter screen 8, passes through the discharge hole along the third filter screen 8, and is discharged through the guide plate 9. Broken rice passes through the third filter screen 8 and the discharge pipe 6 and is discharged to the outside.
[0030] The working principle of the above embodiments is as follows:
[0031] Rice falls from the feed hopper 4 onto the top of the distribution plate 34. The motor 32 is activated, causing the rotating shaft 33, distribution plate 34, scraper 35, and rice to rotate slowly and evenly. The rice falls downwards through the distribution holes. The first filter screen 21 continuously sieves the rice, with impurities located at the top. The scraper 35 moves the impurities to prevent clogging of the first filter screen 21. The rice falls through the first filter screen 21 onto the top of the second filter screen 73, increasing the uniformity of the rice accumulation. Activating the electric push rod 74 causes the first connecting plate 75, spring 76, second connecting plate 77, lifting plate 72, second filter screen 73, and rice to move upwards. Activating the electric push rod 74... The push rod 74 drives the first connecting plate 75, spring 76, and second connecting plate 77 to move downwards. The second filter screen 73 and rice move downwards under the influence of gravity. The spring 76 is compressed and deformed, causing the second filter screen 73 and rice to move up and down. The above steps are repeated to continuously screen the rice. Impurities are located at the top of the second filter screen 73. The rice passes through the second filter screen 73 and falls down to the top of the third filter screen 8. The fan 5 cools the screened rice. The rice passes through the discharge hole along the third filter screen 8 and is discharged through the guide plate 9. Broken rice passes through the third filter screen 8 and the discharge pipe 6 and is discharged to the outside. Two collection boxes are used to classify and collect rice and broken rice, which not only improves the screening efficiency but also the cooling efficiency.
[0032] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] 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 rice cooling bin for rice production, comprising a bin body (1), characterized in that: The silo body (1) is provided with a silo cover (2), the silo cover (2) is embedded with a first filter screen (21), the silo cover (2) is provided with a material distribution mechanism (3), the material distribution mechanism (3) is connected to a feed hopper (4), the inner side wall of the silo body (1) is fixedly installed with a fan (5), the bottom of the silo body (1) is connected to a discharge pipe (6), and the silo body (1) is provided with a screening mechanism (7). The material distribution mechanism (3) includes a horizontal plate (31), which is fixedly connected to the top of the bin cover (2) by a vertical rod. A motor (32) is fixedly installed on the top of the horizontal plate (31). The output end of the motor (32) passes through the horizontal plate (31) and is fixedly installed with a rotating shaft (33). A material distribution plate (34) is fixedly installed at the bottom of the rotating shaft (33). A scraper (35) that fits against the top of the first filter screen (21) is fixedly installed at the bottom of the material distribution plate (34). A first annular plate (36) that matches the first filter screen (21) is fixedly installed on the top of the bin cover (2).
2. The rice cooling bin for rice production as described in claim 1, characterized in that: The screening mechanism (7) includes a second annular plate (71), which is fixedly connected to the inner wall of the silo (1). A lifting plate (72) is slidably installed on the inner wall of the second annular plate (71). A second filter screen (73) matching the second annular plate (71) is fixedly installed on the outside of the lifting plate (72). An electric push rod (74) is fixedly installed on the inner wall of the silo (1) through an mounting plate. A first connecting plate (75) is fixedly installed at the output end of the electric push rod (74). A spring (76) is fixedly installed on the top of the first connecting plate (75). A second connecting plate (77) is fixedly installed on the top of the spring (76).
3. The rice cooling bin for rice production as described in claim 2, characterized in that: The lifting plate (72) is fixedly mounted with a slider extending into the interior of the second annular plate (71), and the inner sidewall of the second annular plate (71) is provided with a groove that matches the slider.
4. A rice cooling bin for rice production as described in claim 1, characterized in that: The inner wall of the silo (1) is fixedly and inclined with a third filter screen (8), the outer wall of the silo (1) is provided with a discharge hole, and the outer wall of the silo (1) is fixedly and in place with a guide plate (9).
5. A rice cooling bin for rice production as described in claim 1, characterized in that: The scraper (35) has a high top perimeter and a low center, and is provided with a material distribution hole. The outer wall of the first annular plate (36) is fitted with a sealing door.
6. A rice cooling bin for rice production as described in claim 1, characterized in that: The inner bottom wall of the silo (1) is high around the perimeter and low in the middle, and a valve is fixedly installed on the outside of the feed pipe (6).