A rice bran separating device
By combining an inclined screen and a vibration device with a blower, the problem of incomplete separation when the rice bran thickness is large in existing devices has been solved, achieving a more efficient rice bran separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI HEZHOU ZHONGLONG AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
Smart Images

Figure CN224332759U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grain processing technology, and in particular to a wind-suction rice bran separator. Background Technology
[0002] Rice is my country's largest grain crop, accounting for 42% of the country's total grain output. Globally, rice production accounts for 37% of total grain production. During the processing of rice into polished rice, the outer husk and approximately 10% of the seed coat and embryo are removed. Rice bran is a mixture of the bran, germ, and broken rice grains that are removed during the whitening process. my country has a high annual rice bran production, making it suitable for utilization as a renewable energy source. Domestic and international research results and data indicate that rice bran is rich in various nutrients and physiologically active substances.
[0003] Most existing air-suction rice bran separators work by using suction generated under the screen when rice and bran pass through it, thus removing the bran from the rice. However, in actual operation, if the thickness of the rice and bran is large, the suction cannot penetrate, resulting in some bran not being fully removed. Therefore, there is an urgent need for an air-suction rice bran separator to solve this problem. Utility Model Content
[0004] The purpose of this invention is to provide a wind-suction type rice bran separator to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a wind-suction rice bran separator, comprising an installation box for installing the wind-suction rice bran separator and a screen for wind-suction rice bran separation, wherein a feed pipe is connected to the top surface of the installation box, an installation frame is slidably installed on the inner wall of the installation box, and the screen is fixedly installed on the inner wall of the installation frame, and the installation frame is inclined.
[0006] Multiple mounting plates are fixedly installed on the inner wall of the mounting box, and the multiple mounting plates extend to the bottom of the mounting frame. A limit cylinder is fixedly installed on the top surface of the mounting plate, and a telescopic rod is slidably installed inside the limit cylinder. A push spring is fixedly installed on the inner wall of the limit cylinder and the lower end of the telescopic rod, and the top surface of the telescopic rod is fixedly connected to the bottom of the mounting frame.
[0007] The side wall of the mounting box is provided with a discharge hole, and an air inlet frame is symmetrically installed on the lower side wall of the mounting box, and a fan is fixedly installed in the air inlet frame.
[0008] A bran collection box is installed on the top surface of the installation box.
[0009] Preferably, a vibration device is fixedly installed at the bottom of the mounting frame.
[0010] Preferably, an arc-shaped guide plate is symmetrically fixedly installed at the lower interior of the mounting box.
[0011] Preferably, the inner wall of the limiting cylinder has two symmetrically opened limiting grooves, and the side wall of the telescopic rod has two symmetrically fixedly installed limiting blocks.
[0012] Preferably, the two limiting blocks fixedly installed on the side wall of the telescopic rod are slidably connected to the inside of the two limiting grooves opened in the inner wall of the limiting cylinder.
[0013] Preferably, a sealing gasket is fixedly bonded to the outer wall of the mounting frame, and the outer wall of the sealing gasket slides against the inner wall of the mounting box.
[0014] Preferably, a guide plate is fixedly installed on the lower end of the inner wall of the discharge hole, and the guide plate extends to the bottom of the mounting frame.
[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:
[0016] This wind-suction rice bran separator benefits from the installation frame, screen and other structures, and the screen is set at an angle. Therefore, when the rice and bran fall onto the screen, the bran and rice can roll along the screen, so that the rice and bran are spread flat on the screen, thereby improving the rice bran separation effect.
[0017] This air-suction rice bran separator benefits from the design of the mounting plate, limiting cylinder, telescopic rod, push spring, and vibration device. When rice bran falls onto the screen, the vibration device is activated to drive the screen to vibrate, and the vibration is amplified by the push spring, thereby increasing the amplitude of the screen vibration and further improving the rice bran separation effect.
[0018] This air-suction rice bran separator, thanks to the design of the air inlet frame and the fan, pumps air into the lower part of the installation box and blows the air upward from the bottom of the screen, thereby helping to blow the bran in the rice and allow it to enter the collection box at the top of the installation box, thus further improving the rice bran separation effect.
[0019] Compared with existing technologies, this air-suction rice bran separator can effectively improve the rice bran separation effect. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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 from these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a three-dimensional sectional view of the mounting box in this utility model;
[0023] Figure 3 This is a schematic diagram of the installation of the internal fan and the arc-shaped guide plate in this utility model;
[0024] Figure 4 This is a schematic diagram showing the connection of the mounting plate, limiting cylinder, telescopic rod, and mounting frame in this utility model.
[0025] Figure 5 This is a planar sectional view of the limiting cylinder in this utility model.
[0026] Explanation of reference numerals in the attached figures:
[0027] In the diagram: 1. Mounting box; 2. Feed pipe; 3. Mounting frame; 4. Mounting plate; 5. Limiting cylinder; 6. Telescopic rod; 7. Screen; 8. Discharge hole; 9. Air inlet frame; 10. Fan; 11. Vibration device; 12. Push spring; 13. Limiting block; 14. Collection box; 15. Guide plate; 16. Sealing gasket; 17. Arc-shaped guide plate. Detailed Implementation
[0028] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0029] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.
[0030] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.
[0031] like Figures 1 to 5 The main structure of the wind-suction rice bran separator shown is an installation box 1 for installing the wind-suction rice bran separator and a screen 7 for wind-suction rice bran separation. The top surface of the installation box 1 is connected to the feed pipe 2, and the inside of the feed pipe 2 has a one-way valve structure, so as to prevent bran and air from leaking out from the feed pipe 2 when the blower blows air into the installation box 1.
[0032] The inner wall of the mounting box 1 is slidably mounted with a mounting frame 3, and the screen 7 is fixedly mounted on the inner wall of the mounting frame 3. The mounting frame 3 is inclined. Thanks to the structure of the mounting frame 3 and the screen 7, and the inclined screen 7, when the rice and bran fall onto the screen 7, the bran and rice can roll along the screen 7, so that the rice and bran are spread flat on the screen 7, thereby improving the rice and bran separation effect.
[0033] Multiple mounting plates 4 are fixedly installed on the inner wall of the mounting box 1, and the multiple mounting plates 4 extend to the bottom of the mounting frame 3. A limiting cylinder 5 is fixedly installed on the top surface of the mounting plate 4, and a telescopic rod 6 is slidably installed inside the limiting cylinder 5. A push spring 12 is fixedly installed on the inner wall of the limiting cylinder 5 and the lower end of the telescopic rod 6. The top surface of the telescopic rod 6 is fixedly connected to the bottom of the mounting frame 3. A vibration device 11 is fixedly installed on the bottom of the mounting frame 3. Thanks to the structure of the mounting plate 4, the limiting cylinder 5, the telescopic rod 6, the push spring 12, and the vibration device 11, when rice bran falls onto the screen 7, the vibration device 11 is activated to drive the screen 7 to vibrate, and the vibration is amplified by the push spring 12, thereby increasing the amplitude of the vibration of the screen 7 and further improving the separation effect of rice bran.
[0034] The side wall of the mounting box 1 is provided with a discharge hole 8. The lower side wall of the mounting box 1 is symmetrically provided with an air inlet frame 9, and a fan 10 is fixedly installed inside the air inlet frame 9. Thanks to the arrangement of the air inlet frame 9 and the fan 10, the fan 10 pumps air into the lower interior of the mounting box 1 and blows the air upward from the bottom of the screen 7, thereby helping to blow up the bran in the rice and let the bran enter the collection box 14 at the upper end of the mounting box 1, thereby further improving the rice bran separation effect.
[0035] The top surface of the mounting box 1 is connected to the bran collection box 14. The collection box 14 can suck the bran blown by the blower 10 into it, filter and collect the bran, and then discharge the air. The collection box 14 is equipped with a suction structure, so it can quickly suck the bran blown by the blower 10 below into the interior of the collection box 14 and filter and collect it.
[0036] An arc-shaped guide plate 17 is symmetrically fixedly installed at the lower end of the inner side of the mounting box 1. The guide plate 17 is arc-shaped, which can effectively guide the air blown into the mounting box 1 by the blower 10 and change its blowing direction, thereby further improving the effect of blowing up the chaff on the screen 7.
[0037] The inner wall of the limiting cylinder 5 is symmetrically provided with two limiting grooves, and the side wall of the telescopic rod 6 is symmetrically fixedly installed with two limiting blocks 13. The two limiting blocks 13 fixedly installed on the side wall of the telescopic rod 6 are slidably connected to the inside of the two limiting grooves provided in the inner wall of the limiting cylinder 5. The limiting blocks 13 can effectively limit the sliding direction of the telescopic rod 6, and at the same time further improve the stability of the telescopic rod 6 and the mounting frame 3.
[0038] A sealing gasket 16 is fixedly bonded to the outer wall of the mounting frame 3, and the outer wall of the sealing gasket 16 slides against the inner wall of the mounting box 1. The sealing gasket 16 can effectively improve the sealing effect between the mounting frame 3 and the inner wall of the mounting box 1.
[0039] A guide plate 15 is fixedly installed on the lower end of the inner wall of the discharge hole 8, and the guide plate 15 extends to the bottom of the mounting frame 3. Thanks to the setting of the guide plate 15, the rice after the rice bran is separated can be effectively guided to the outside of the mounting box 1 through the guide plate 15.
[0040] Working principle
[0041] In use, the air-suction rice bran separator first introduces rice and bran into the interior of the mounting box 1 through the feed pipe 2 on the top surface of the mounting box 1, and then they fall onto the top surface of the screen 7. At the same time, the vibration device 11 is activated, which drives the mounting frame 3 and the screen 7 to vibrate. Simultaneously, multiple push springs 12 amplify the vibration amplitude of the screen 7, thereby further improving the effect of spreading the rice bran on the screen 7 and causing the rice bran to vibrate. At this time, multiple fans 10 are activated to introduce air into the lower interior of the mounting box 1 and blow it upward from the bottom of the screen 7. This blows the bran in the rice bran into the collection box 14 on the top surface of the mounting box 1, thereby further improving the separation effect of rice bran.
[0042] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0043] 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 wind-suction type rice bran separator, comprising an installation box (1) for installing the wind-suction type rice bran separator and a screen (7) for wind-suction type rice bran separation, characterized in that: The top surface of the mounting box (1) is connected to the feed pipe (2), the inner wall of the mounting box (1) is slidably installed with the mounting frame (3), and the screen (7) is fixedly installed on the inner wall of the mounting frame (3), and the mounting frame (3) is inclined. Multiple mounting plates (4) are fixedly installed on the inner wall of the mounting box (1), and the multiple mounting plates (4) extend to the bottom of the mounting frame (3). A limiting cylinder (5) is fixedly installed on the top surface of the mounting plate (4), and a telescopic rod (6) is slidably installed inside the limiting cylinder (5). A push spring (12) is fixedly installed on the inner wall of the limiting cylinder (5) and the lower end of the telescopic rod (6). The top surface of the telescopic rod (6) is fixedly connected to the bottom of the mounting frame (3). The side wall of the mounting box (1) is provided with a discharge hole (8), and an air inlet frame (9) is symmetrically installed below the side wall of the mounting box (1), and a fan (10) is fixedly installed inside the air inlet frame (9). The top surface of the mounting box (1) is connected to a bran collection box (14).
2. The air-suction type rice bran separator according to claim 1, characterized in that: A vibration device (11) is fixedly installed at the bottom of the mounting frame (3).
3. The air-suction type rice bran separator according to claim 1, characterized in that: The lower interior of the mounting box (1) is symmetrically fixed with arc-shaped guide plates (17).
4. The air-suction type rice bran separator according to claim 1, characterized in that: The inner wall of the limiting cylinder (5) has two symmetrically opened limiting grooves, and the side wall of the telescopic rod (6) has two symmetrically fixedly installed limiting blocks (13).
5. The air-suction type rice bran separator according to claim 4, characterized in that: The two limiting blocks (13) fixedly installed on the side wall of the telescopic rod (6) are respectively slidably connected to the inside of the two limiting grooves opened on the inner wall of the limiting cylinder (5).
6. The air-suction type rice bran separator according to claim 1, characterized in that: The outer wall of the mounting frame (3) is fixedly bonded with a sealing gasket (16), and the outer wall of the sealing gasket (16) slides against the inner wall of the mounting box (1).
7. The air-suction type rice bran separator according to claim 1, characterized in that: A guide plate (15) is fixedly installed on the lower end of the inner wall of the discharge hole (8), and the guide plate (15) extends to the bottom of the mounting frame (3).