An integrated device for removing stones and impurities from rice
By combining a conical sieve chamber with a screening chamber, a multi-stage screening structure is achieved, which solves the problem that a single sieve plate cannot distinguish impurities of different particle sizes. This enables efficient impurity removal from rice, improves the purity of the finished rice, and enhances the ease of operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGYU AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
AI Technical Summary
Existing rice impurity removal devices use a single sieve plate structure, which cannot effectively distinguish impurities of different particle sizes or shapes. In particular, the removal rate of impurities such as sand and gravel with a particle size similar to rice is low, resulting in unsatisfactory impurity removal effect.
It adopts a multi-stage screening structure that combines a conical chamber and a screening chamber. The through groove in the conical chamber initially removes large particles of impurities, while the bottom of the screening chamber is equipped with sieve holes. Combined with the vibration drive structure of the vibrating motor and elastic element, multi-stage screening is achieved, which has a particularly good removal effect on impurities with a particle size similar to that of rice.
It significantly improves screening efficiency and impurity removal accuracy, enhances the purity and quality stability of finished rice, reduces manual labor intensity, and improves the ease of operation and production efficiency of the equipment.
Smart Images
Figure CN224272180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing equipment technology, and in particular to an integrated device for removing stones and impurities from rice. Background Technology
[0002] Rice is one of the staple foods in the human diet, and its quality directly affects people's nutritional intake and health. During the processing of paddy rice into finished rice, the raw grain often contains various impurities such as sand, metal particles, straw, and soil. These impurities not only affect the appearance and taste of the finished rice but can also cause wear and tear or even damage to subsequent processing equipment, and in severe cases, pose potential health hazards. Therefore, before rice enters the refining stage, effective stone and impurity removal processes must be implemented to ensure the purity of the raw materials, thereby improving the overall processing quality and safety.
[0003] Existing rice impurity removal devices mostly use a single sieve plate structure for screening. Although it can achieve a certain degree of preliminary separation between impurities and rice, this method has obvious technical defects. A single sieve plate cannot effectively distinguish impurities of different particle sizes or shapes. In particular, the removal rate of impurities such as sand, gravel, and broken husks that are similar in size to rice particles is low, resulting in unsatisfactory impurity removal effect. Utility Model Content
[0004] The purpose of this invention is to provide an integrated device for removing stones and impurities from rice. This solves the problem that the existing technology uses a single sieve plate structure for screening. Although it can achieve a certain degree of preliminary separation between impurities and rice, this method has obvious technical defects. A single sieve plate cannot effectively distinguish impurities of different particle sizes or shapes. In particular, the removal rate of impurities such as sand, gravel, and broken husks that are similar in size to rice particles is low, resulting in an unsatisfactory impurity removal effect.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An integrated device for removing stones and impurities from rice includes a base plate and a support plate disposed on top of the base plate;
[0007] Two columns are connected to the top side of the base plate, and an installation plate that slides with the columns is fixedly connected to the top side of the support plate.
[0008] A collection box is provided on the top of the support plate, and a conical chamber is detachably connected to the top of one side of the mounting plate. A screening chamber is provided between the conical chamber and the collection box. Several through slots are provided inside the conical chamber, and several sieve holes are provided at the bottom of the inner cavity of the screening chamber. A vibration motor is installed on one side of the mounting plate, and the bottom of the support plate is connected to the top of the base plate through several elastic elements.
[0009] Preferably, each of the two columns has a groove on one side, and two sliding plates that slide in cooperation with the groove are fixedly connected to one side of the mounting plate.
[0010] Preferably, the elastic element includes a compression spring, one end of which is connected to the bottom of the support plate and the other end of which is connected to the top of the base plate.
[0011] Preferably, the top of the support plate has a placement groove adapted to the collection box, and the bottom of the mounting plate is fixedly connected to the top of the support plate.
[0012] Preferably, one side of the conical compartment is fixedly connected to a mounting bracket that is bolted to the side wall of the mounting plate.
[0013] Preferably, a fixing plate is bolted to one side of the mounting plate, and two support rods are fixedly connected to one side of the fixing plate. Each of the two support rods has an insertion groove on the side that is close to each other. Insertion plates that are compatible with the insertion grooves are fixedly connected to the top of both sides of the screening chamber.
[0014] This utility model has at least the following beneficial effects:
[0015] By incorporating a multi-stage screening structure combining conical and screening chambers, the problem of existing technologies where a single screen plate cannot distinguish impurities of different sizes and shapes is effectively solved. The through-channels within the conical chamber achieve preliminary screening of large particles, preventing them from entering subsequent screening processes and causing blockages or damage to the equipment. Screen holes at the bottom of the screening chamber, combined with a vibration drive structure using a vibrating motor and elastic components, significantly improve screening efficiency and impurity removal accuracy. It is particularly effective at removing impurities such as sand, gravel, and broken husks that are similar in size to rice grains, greatly improving the purity and quality stability of the finished rice. Furthermore, the conical chamber and collection box are detachably connected, facilitating regular cleaning and maintenance, reducing manual labor intensity, and enhancing the ease of operation and safety of cleaning. The overall structure is compact and rationally laid out, reducing floor space and achieving integrated stone removal and impurity removal, thus improving production efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the column and sliding groove structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the mounting plate and sliding plate structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the fixing plate and supporting rod structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the screening bin and plug-in plate structure of this utility model.
[0022] In the diagram: 1. Column; 2. Base plate; 3. Collection box; 4. Screening chamber; 5. Conical chamber; 6. Mounting plate; 7. Slide groove; 8. Slide plate; 9. Vibration motor; 10. Compression spring; 11. Fixing plate; 12. Support rod; 13. Insertion groove; 14. Placement groove; 15. Insertion plate; 16. Screen hole. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] Example 1
[0025] Please see Figure 1-5 As shown, an integrated rice destone and impurity removal device according to this embodiment includes a base plate 2 and a support plate disposed on the top of the base plate 2;
[0026] Two columns 1 are connected to the top side of the base plate 2, and an mounting plate 6 that slides with the columns 1 is fixedly connected to the top side of the support plate.
[0027] A collection box 3 is provided on the top of the support plate. A conical chamber 5 is detachably connected to the top of one side of the mounting plate 6. A screening chamber 4 is provided between the conical chamber 5 and the collection box 3. Several through slots are provided inside the conical chamber 5. Several sieve holes 16 are provided at the bottom of the inner cavity of the screening chamber 4. A vibration motor 9 is installed on one side of the mounting plate 6. The bottom of the support plate is connected to the top of the base plate 2 through several elastic elements.
[0028] First, the rice to be processed is poured into the conical hopper 5 from the top. Multiple channels are formed on the inner wall of the conical hopper 5. These channels can initially remove larger impurities, such as straw and large particles of sand and gravel, trapping them above the conical hopper 5 or discharging them along the channels. Rice that meets the particle size requirements and some smaller impurities pass through the channels into the screening hopper 4 below. The screening hopper 4 is installed on one side of the mounting plate 6, which is fixedly connected to the top side of the support plate and slides against the column 1 on the base plate 2, thus achieving stable support for the overall structure. The bottom of the screening hopper 4 is equipped with… Multiple sieve holes 16 are used. When the material enters the screening chamber 4, the vibration motor 9 is started. The vibration motor 9 drives the mounting plate 6 and the screening chamber 4 to generate high-frequency vibration. At the same time, multiple elastic elements are provided between the bottom plate 2 and the support plate to further enhance the vibration effect, so that the rice is fully loosened and evenly distributed in the screening chamber 4. Fine impurities such as sand, broken shells, and dust fall into the collection box 3 located below through the sieve holes 16, completing the classification, screening and centralized collection of impurities. After screening, the detachable conical chamber 5 and collection box 3 are easy to clean and replace, thus ensuring the continuous and efficient operation of the equipment.
[0029] Example 2
[0030] Please see Figure 1-5 As shown in this embodiment, an integrated rice destoning and impurity removal device has a groove 7 on one side of each of the two columns 1. Two sliding plates 8, which slide in cooperation with the groove 7, are fixedly connected to one side of the mounting plate 6. Specifically, through the groove 7 on one side of the column 1 and the sliding plates 8 fixed to one side of the mounting plate 6, when the vibrating motor 9 starts, the mounting plate 6 and the screening chamber 4 generate high-frequency vibration, while the sliding plates 8 slide smoothly within the groove 7, ensuring the stability and guiding nature of the mounting plate 6 and its connecting components. This design not only improves the overall stability of the equipment during operation but also reduces structural displacement or wear caused by vibration, thus enhancing the durability and reliability of the equipment.
[0031] The top of the support plate has a placement groove 14 that fits the collection box 3. The bottom of the mounting plate 6 is fixedly connected to the top of the support plate. Specifically, through the placement groove 14 on the top of the support plate, the collection box 3 can be accurately embedded in the placement groove 14, ensuring that the position of the collection box 3 is fixed and preventing displacement or tilting during vibration. This design simplifies the installation and disassembly process of the collection box 3, facilitates cleaning and maintenance, and improves operational convenience and cleaning efficiency.
[0032] Example 3
[0033] Please see Figure 1-5As shown in this embodiment, an integrated rice destone and impurity removal device includes a compression spring 10 as its elastic component. One end of the compression spring 10 is connected to the bottom of the support plate, and the other end is connected to the top of the base plate 2. Specifically, by setting one end of the compression spring 10 to the bottom of the support plate and the other end to the top of the base plate 2, when the vibration motor 9 is working, the compression spring 10 can effectively buffer the impact force brought by the vibration and further enhance the vibration effect, making the rice more loose and uniform in the screening chamber 4, which is conducive to the effective separation of fine impurities. This method significantly improves screening efficiency and accuracy, achieving the goal of improving the impurity removal effect.
[0034] A mounting bracket is fixedly connected to one side of the conical chamber 5 and bolted to the side wall of the mounting plate 6. Specifically, the installation bracket fixed to one side of the conical chamber 5 and bolted to the side wall of the mounting plate 6 achieves a stable connection between the conical chamber 5 and the mounting plate 6, enhancing the structural strength and stability of the entire device. This design prevents the conical chamber 5 from shaking or falling off during operation, thus improving the overall stability and safety of the equipment.
[0035] A fixing plate 11 is bolted to one side of the mounting plate 6. Two support rods 12 are fixedly connected to one side of the fixing plate 11. Each support rod 12 has an insertion slot 13 on its adjacent side. Insertion plates 15, matching the insertion slots 13, are fixedly connected to the top of both sides of the screening chamber 4. Specifically, through the arrangement of the fixing plate 11, support rods 12, and insertion slots 13, and the insertion slots 13 on the adjacent sides of the two support rods 12 fixed to one side of the fixing plate 11, the insertion plates 15 on the top of both sides of the screening chamber 4 can be inserted into the insertion slots 13 for a secure connection. This design not only enhances the support stability of the screening chamber 4 but also facilitates its rapid disassembly and maintenance, improving the ease of use and maintenance efficiency of the equipment. Simultaneously, the insertion structure design helps reduce the displacement of the screening chamber 4 during vibration, improving the accuracy and consistency of the screening operation.
[0036] This solution includes the following work process:
[0037] First, the rice to be processed is poured into the top of the conical hopper 5. The conical hopper 5 has multiple channels inside, which can initially screen out larger impurities such as straw and large particles of sand and gravel, intercepting them or discharging them along the channels. Rice of the appropriate particle size and some fine impurities enter the screening hopper 4 below. The screening hopper 4 is located on one side of the mounting plate 6, which is fixedly connected to the top of the support plate via its bottom. One side of the mounting plate 6 is detachably connected to the top of the conical hopper 5, and the other side is connected to a vibration motor 9. When the vibration motor 9 starts, it drives the mounting plate 6 and the screening hopper 4 to generate high-frequency vibration. Simultaneously, the bottom of the support plate is connected to the top of the base plate 2 via several compression springs 10, which buffer and enhance the vibration effect during the vibration process. The bottom of the screening hopper 4 has multiple sieve holes 16, which are used to filter out impurities during vibration. Under the action, the rice is fully loosened and evenly distributed. Fine impurities such as broken husks, gravel, and dust fall through the sieve holes 16 into the collection box 3 below for grading and impurity removal. The collection box 3 is embedded in the placement groove 14 at the top of the support plate to ensure its stable position and facilitate subsequent cleaning and replacement. A fixing plate 11 is also connected to one side of the mounting plate 6. The fixing plate 11 is provided with two support rods 12 with insertion grooves 13. The top of both sides of the screening chamber 4 is provided with matching insertion plates 15 to achieve stable installation and quick disassembly of the screening chamber 4. In addition, a sliding plate 8 is provided on one side of the mounting plate 6. The sliding plate 8 slides and engages with the sliding groove 7 on the column 1, so that the entire screening system maintains stable operation during vibration. The conical chamber 5 is bolted to the mounting plate 6 through the mounting bracket to ensure its installation is firm.
[0038] Compared with the prior art, this utility model has the following significant advantages: First, the multi-stage screening structure combining the conical chamber 5 and the screening chamber 4 effectively improves the impurity removal efficiency, especially solving the problem that traditional single-layer screen plates cannot distinguish impurities of different particle sizes, and greatly improves the purity of the finished rice; Second, the synergistic effect of the vibrating motor 9 and the compression spring 10 enhances the vibration effect during the screening process, making the material fully loose and improving the screening accuracy; Third, the mounting plate 6 and the column 1 are connected by the sliding plate 8 and the sliding groove 7, which ensures the stability of the equipment under high-frequency vibration, reduces displacement and wear, and extends the service life; In addition, the screening chamber 4 can be quickly disassembled and assembled through the plug-in plate 15 and the plug-in groove 13, which facilitates maintenance and cleaning and improves the ease of operation; The collection box 3 is embedded in the placement groove 14 on the top of the support plate to prevent displacement and make it easy to remove and clean; The conical chamber 5 is fixed to the mounting plate 6 by bolts through the mounting bracket, which improves the overall structural strength and avoids the risk of falling off during operation.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An integrated device for removing stones and impurities from rice, characterized in that, include: The base plate (2) and the support plate set on top of the base plate (2); Two columns (1) are connected to the top side of the base plate (2), and an mounting plate (6) that slides with the columns (1) is fixedly connected to the top side of the support plate. A collection box (3) is provided on the top of the support plate. A conical chamber (5) is detachably connected to the top of one side of the mounting plate (6). A screening chamber (4) is provided between the conical chamber (5) and the collection box (3). Several through slots are provided inside the conical chamber (5). Several sieve holes (16) are provided at the bottom of the inner cavity of the screening chamber (4). A vibration motor (9) is installed on one side of the mounting plate (6). The bottom of the support plate is connected to the top of the base plate (2) through several elastic elements.
2. The integrated rice destoning and impurity removal device according to claim 1, characterized in that, Each of the two columns (1) has a groove (7) on one side, and two sliding plates (8) that slide in cooperation with the groove (7) are fixedly connected to one side of the mounting plate (6).
3. The integrated rice destoning and impurity removal device according to claim 1, characterized in that, The elastic element includes a compression spring (10), one end of which is connected to the bottom of the support plate and the other end is connected to the top of the base plate (2).
4. The integrated rice destoning and impurity removal device according to claim 2, characterized in that, The top of the support plate is provided with a placement groove (14) that is compatible with the collection box (3), and the bottom of the mounting plate (6) is fixedly connected to the top of the support plate.
5. The integrated rice destoning and impurity removal device according to claim 3, characterized in that, The conical chamber (5) is fixedly connected to a mounting bracket that is bolted to the side wall of the mounting plate (6) on one side.
6. The integrated rice destoning and impurity removal device according to claim 5, characterized in that, A fixing plate (11) is bolted to one side of the mounting plate (6). Two support rods (12) are fixedly connected to one side of the fixing plate (11). Insertion grooves (13) are provided on the side of the two support rods (12) that are close to each other. Insertion plates (15) that are compatible with the insertion grooves (13) are fixedly connected to the top of both sides of the screening chamber (4).