Broken rice separator for rice bran processing
By introducing an air pump and a stirring system into the rice bran processing and broken rice separator, high-pressure gas is used to remove screen blockage, solving the problem of easy screen clogging and improving separation efficiency and anti-clogging performance.
Patent Information
- Application Number
- CN202520083398.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing rice bran processing and broken rice separators are prone to screen clogging during the separation process, resulting in low separation efficiency and poor anti-clogging performance, which affects their performance.
It adopts an air pump, universal joint, air nozzle, gear ring, gear and hollow structure stirring shaft. The drive motor drives the gear to rotate, the gear drives the stirring shaft to rotate. High pressure gas is sprayed out through air pipe, universal joint and stirring shaft to clear the screen blockage and realize automatic blockage clearing.
It improves separation efficiency, enhances anti-clogging performance, and ensures the normal operation and effectiveness of the device.
Smart Images

Figure CN223832771U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rice bran processing equipment, specifically to a rice bran processing and broken rice separator. Background Technology
[0002] Rice is one of my country's staple grains. The rice processing generally involves a series of steps, including screening and cleaning, hulling, separating the grains from the bran, whitening, polishing, and grading. During processing, the squeezing action between the rice grains and the machine parts causes the rice to crack and break, resulting in a large amount of broken rice. Over 60% of broken rice is produced during the hulling and whitening stages. Therefore, the rice bran produced during the whitening process contains a significant amount of broken rice particles. Rice bran and broken rice have different economic uses; therefore, in actual production, they should be separated and processed as different raw materials to maximize profits.
[0003] Existing rice bran processing and broken rice separators separate rice bran and broken rice by using a screen to separate them based on their different particle sizes. Smaller rice bran particles are sieved out, but some rice bran gets stuck in the screen during the sieving process, causing the screen to become clogged and requiring the machine to be stopped for cleaning. This results in low separation efficiency and poor anti-clogging performance of the screen, affecting the overall performance of the machine. Therefore, there is an urgent need for a rice bran processing and broken rice separator to solve these problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] The technical problem to be solved by this utility model is to provide a rice bran processing and broken rice separator that can automatically clear clogging of the screen, ensure the working efficiency of the device, has good anti-clogging performance and high performance.
[0006] (II) Technical Solution
[0007] This utility model is achieved through the following technical solution: This utility model proposes a rice bran processing and broken rice separator, including a U-shaped support, a storage cylinder installed on the inner wall of the support, a hollow stirring shaft installed inside the storage cylinder, an air nozzle installed at one end of the stirring shaft, a transmission box fixed on one side wall of the support, a gear ring fixed on the outer side wall of one end of the stirring shaft, a gear connected to one side of the gear ring, a drive motor installed on the gear, a universal joint connected to one end of the stirring shaft, an air guide pipe connected to one end of the universal joint, an air pump connected to one end of the air guide pipe, a screen installed on the bottom wall of the storage cylinder, a side plate fixed on one side wall of the storage cylinder, a connecting block fixed at the bottom end of the screen, and an electric push rod installed between the connecting block and the side plate.
[0008] Furthermore, the storage cylinder is fixed inside the support by bolts, and a filling pipe is reserved on one side of the top of the storage cylinder.
[0009] By adopting the above technical solution, rice bran and broken rice are injected into the storage cylinder through the injection pipe for separation.
[0010] Furthermore, the stirring shaft is rotatably installed inside the storage cylinder, and the air nozzle is threadedly connected to the stirring shaft.
[0011] By adopting the above technical solution, the stirring shaft can stir rice bran and broken rice. During the stirring process, high-pressure gas is sprayed out through the air nozzle and acts on the screen, which can automatically clear the blockage of the screen.
[0012] Furthermore, one end of the stirring shaft is connected to the support and the side wall of the transmission box via bearings, the gear ring is fixed on the stirring shaft, the gear meshes with the gear ring, and the output shaft of the drive motor is fixedly connected to the gear.
[0013] By adopting the above technical solution, the drive motor drives the gear to rotate, and the gear drives the stirring shaft to rotate through the gear ring.
[0014] Furthermore, the universal ball inside the universal joint is fixedly connected to one end of the stirring shaft and is internally connected.
[0015] By adopting the above technical solution, the universal joint not only ensures the delivery of gas, but also ensures the rotational performance of the stirring shaft.
[0016] Furthermore, the air pipe is fixedly connected to the universal joint, and the other end of the air pump is connected to the output port of the air pump by bolts.
[0017] By adopting the above technical solution, the high-pressure gas generated by the air pump reaches the air nozzle through the air pipe, the universal joint, and the stirring shaft.
[0018] Furthermore, one side wall of the screen is hinged to the storage cylinder, the side plate is welded to the storage cylinder, the connecting block is welded to the screen, both ends of the electric push rod are hinged to the connecting block and the side plate respectively, and a sealing strip is installed on the other side wall of the screen.
[0019] By adopting the above technical solution, during the stirring process, the rice bran is sieved out through the screen, thereby achieving separation from the broken rice. After the separation is completed, the screen is rotated by the electric push rod, and the broken rice can be discharged and collected through the gap between the screen and the storage cylinder.
[0020] Furthermore, a collection trough is movably placed directly below the screen in the storage cylinder.
[0021] By adopting the above technical solution, the collection tank is used to collect the separated rice bran and broken rice.
[0022] (III) Beneficial Effects
[0023] Compared with the prior art, this utility model has the following advantages:
[0024] To address the problems of existing rice bran and broken rice separators that rely on sieves to separate rice bran and broken rice based on their particle size, resulting in some bran particles being sieved out and becoming trapped, necessitating machine shutdown for cleaning, this invention addresses these issues. It incorporates an air pump, universal joint, air nozzle, gear ring, gears, and a hollow stirring shaft. During the rice bran and broken rice separation process, a drive motor rotates the gears, which in turn rotate the stirring shaft via the gear ring. During stirring, high-pressure gas generated by the air pump travels through the air pipe, universal joint, and stirring shaft to the air nozzle and is sprayed onto the sieve, automatically clearing blockages, ensuring separation efficiency, improving anti-clogging performance, and enhancing overall performance. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of a rice bran processing and broken rice separator according to the present invention;
[0026] Figure 2 This is a schematic diagram of the internal structure of the storage cylinder in a rice bran processing and broken rice separator according to the present invention;
[0027] Figure 3 This utility model describes a rice bran processing and broken rice separator. Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a schematic diagram of the internal structure of the transmission box in a rice bran processing and broken rice separator according to the present invention;
[0029] Figure 5 This is a schematic diagram showing the connection relationship between the screen and the storage cylinder in a rice bran processing and broken rice separator according to the present invention.
[0030] The annotations in the attached figures are explained as follows:
[0031] 1. Support; 2. Storage cylinder; 3. Screen; 4. Transmission box; 5. Universal joint; 6. Air pipe; 7. Air pump; 8. Collection tank; 9. Stirring shaft; 10. Air nozzle; 11. Gear ring; 12. Gear; 13. Drive motor; 14. Side plate; 15. Electric push rod; 16. Connecting block. Detailed Implementation
[0032] 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.
[0033] like Figures 1-5 As shown, this embodiment of a rice bran processing and broken rice separator includes a U-shaped support 1. A storage cylinder 2 is installed on the inner wall of the support 1. Rice bran and broken rice are injected into the storage cylinder 2 through a feeding pipe for separation. A hollow stirring shaft 9 is installed inside the storage cylinder 2. An air nozzle 10 is installed at one end of the stirring shaft 9. The stirring shaft 9 can stir the rice bran and broken rice. During the stirring process, high-pressure gas is sprayed out through the air nozzle 10 and acts on the screen 3, which can automatically clear the blockage of the screen 3. A transmission box 4 is fixed on one side wall of the support 1. A gear ring 11 is fixed on the outer side wall of one end of the stirring shaft 9. A gear 12 is connected to one side of the gear ring 11. A drive motor 13 is installed on the gear 12. The drive motor 13 drives the gear 12 to rotate. The gear 12 drives the stirring shaft through the gear ring 11. 9 rotates. One end of the stirring shaft 9 is connected to a universal joint 5. The universal joint 5 not only ensures the gas delivery but also ensures the rotation performance of the stirring shaft 9. One end of the universal joint 5 is connected to a gas guide pipe 6, and the other end of the gas guide pipe 6 is connected to an air pump 7. The high-pressure gas generated by the air pump 7 reaches the air nozzle 10 through the gas pipe 6, the universal joint 5, and the stirring shaft 9. A screen 3 is installed on the bottom wall of the storage cylinder 2. A side plate 14 is fixed on one side wall of the storage cylinder 2. A connecting block 16 is fixed at the bottom of the screen 3. An electric push rod 15 is installed between the connecting block 16 and the side plate 14. During the stirring process, the rice bran is screened out through the screen 3, thereby achieving separation from the broken rice. After the separation is completed, the screen 3 is rotated by the electric push rod 15, and the broken rice can be discharged and collected through the gap between the screen 3 and the storage cylinder 2.
[0034] like Figures 1-5As shown, in this embodiment, the storage cylinder 2 is fixed to the support 1 by bolts. A material injection pipe is reserved on one side of the top of the storage cylinder 2. The stirring shaft 9 is rotatably installed in the storage cylinder 2. The air nozzle 10 is connected to the stirring shaft 9 by threads. One end of the stirring shaft 9 is connected to the support 1 and the side wall of the transmission box 4 by bearings. The gear ring 11 is fixed on the stirring shaft 9. The gear 12 meshes with the gear ring 11. The output shaft of the drive motor 13 is fixedly connected to the gear 12. The universal ball in the universal joint 5 is fixedly connected to one end of the stirring shaft 9 and is internally connected. The air pipe 6 is fixedly connected to the universal joint 5. The other end of the air pump 7 is connected to the output port of the air pump 7 by bolts.
[0035] like Figures 1-5 As shown, in this embodiment, one side wall of the screen 3 is hinged to the storage cylinder 2, the side plate 14 is welded to the storage cylinder 2, the connecting block 16 is welded to the screen 3, the two ends of the electric push rod 15 are respectively hinged to the connecting block 16 and the side plate 14, a sealing strip is installed on the other side wall of the screen 3, and a collection trough 8 is movably placed in the storage cylinder 2 directly below the screen 3. The collection trough 8 is used to collect the separated rice bran and broken rice.
[0036] The specific implementation process of this embodiment is as follows: When in use, the external power supply is turned on, and rice bran and broken rice are injected into the storage cylinder 2 through the injection pipe for separation. During the separation process of rice bran and broken rice, the drive motor 13 drives the gear 12 to rotate. The gear 12 drives the stirring shaft 9 to rotate through the gear ring 11 to stir it. During the stirring process, the rice bran is screened out through the screen 3, thereby achieving separation from the broken rice. At the same time, the high-pressure gas generated by the air pump 7 reaches the air nozzle 10 through the air pipe 6, universal joint 5, and stirring shaft 9 and is sprayed out to act on the screen 3, thereby automatically clearing blockages and ensuring the separation efficiency and anti-blocking performance of the device. After the separation is completed, the screen 3 is rotated by the electric push rod 15, and the broken rice can be discharged and collected through the gap between the screen 3 and the storage cylinder 2.
[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A rice bran processing and broken rice separator, characterized in that: The system includes a U-shaped support (1), an inner wall of which is fitted with a storage cylinder (2), a hollow stirring shaft (9) inside the storage cylinder (2), an air nozzle (10) at one end of the stirring shaft (9), a transmission box (4) fixed on one side wall of the support (1), a gear ring (11) fixed on the outer side wall of one end of the stirring shaft (9), a gear (12) connected to one side of the gear ring (11), and a drive motor mounted on the gear (12). 13) One end of the stirring shaft (9) is connected to a universal joint (5), one end of the universal joint (5) is connected to an air guide pipe (6), one end of the air guide pipe (6) is connected to an air pump (7), a screen (3) is provided on the bottom wall of the storage cylinder (2), a side plate (14) is fixed on one side wall of the storage cylinder (2), a connecting block (16) is fixed at the bottom end of the screen (3), and an electric push rod (15) is installed between the connecting block (16) and the side plate (14).
2. The rice bran processing and broken rice separator according to claim 1, characterized in that: The storage cylinder (2) is fixed inside the support (1) by bolts, and a material injection pipe is reserved on one side of the top of the storage cylinder (2).
3. The rice bran processing and broken rice separator according to claim 1, characterized in that: The stirring shaft (9) is rotatably installed inside the storage cylinder (2), and the air nozzle (10) is connected to the stirring shaft (9) by a thread.
4. The rice bran processing and broken rice separator according to claim 1, characterized in that: One end of the stirring shaft (9) is connected to the support (1) and the side wall of the transmission box (4) through bearings. The gear ring (11) is fixed on the stirring shaft (9). The gear (12) meshes with the gear ring (11). The output shaft of the drive motor (13) is fixedly connected to the gear (12).
5. A rice bran processing and broken rice separator according to claim 4, characterized in that: The universal ball inside the universal joint (5) is fixedly connected to one end of the stirring shaft (9) and is in an internally connected state.
6. A rice bran processing and broken rice separator according to claim 5, characterized in that: The air pipe (6) is fixedly connected to the universal joint (5), and the other end of the air pump (7) is connected to the output port of the air pump (7) by bolts.
7. A rice bran processing and broken rice separator according to claim 6, characterized in that: One side wall of the screen (3) is hinged to the storage cylinder (2), the side plate (14) is welded to the storage cylinder (2), the connecting block (16) is welded to the screen (3), the two ends of the electric push rod (15) are respectively hinged to the connecting block (16) and the side plate (14), and a sealing strip is installed on the other side wall of the screen (3).
8. A rice bran processing and broken rice separator according to claim 7, characterized in that: The storage cylinder (2) is located directly below the screen (3) and has a collection trough (8) movably placed there.