Low-temperature impurity removing and screening device for milled rice with embryo
By using a low-temperature impurity removal and screening device, which combines a blower and a dust removal fan with a rubber belt to agitate the germ rice, the problems of high noise and poor impurity removal effect of the vibrating screen are solved, and stable and efficient germ rice impurity removal is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGMINFU ECOLOGICAL AGRI (GUANGDONG) CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing germ rice impurity removal equipment, such as vibrating screens, is large in size, noisy, has poor impurity removal effect, and is prone to the problem of small particles of impurities being screened together with the rice.
A low-temperature impurity removal and screening device is adopted, which uses a blower and a dust removal fan in conjunction with a rubber belt to turn the germ rice, blows away impurities with the blower and cleans away dust with the dust removal fan, thereby achieving low-temperature impurity removal and screening.
It reduces equipment noise, improves impurity removal efficiency, avoids small particles of impurities being screened along with the rice, and achieves a stable and efficient low-temperature impurity removal process.
Smart Images

Figure CN224253508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of germ rice impurity removal and screening technology, specifically a low-temperature impurity removal and screening device for germ rice. Background Technology
[0002] Germinated rice usually contains a lot of impurities such as rice bran, endosperm, broken powder and skin, which need to be removed during processing;
[0003] For example, the Chinese authorized patent CN211359637U (A Germ Rice Impurity Separation Device) includes an outer shell, inside which a vibrating screen is connected via mounting base bolts. A protective cover is provided on the upper part of the vibrating screen. An arc-shaped pipe runs through the upper part of the outer shell, and a rotating wheel is mounted inside the arc-shaped pipe via a support frame. A motor is mounted on the rear inner wall of the outer shell, and the motor's output end is connected to the rotating wheel via a rotating shaft. One end of the rotating shaft is supported by a bearing, which is fixed to the front inner wall of the outer shell. A straight pipe is connected to the bottom of the outer shell, and a first impurity box is connected to the rear end of the straight pipe. An isolation net is provided at the front end of the first impurity box. This germ rice impurity separation device can perform multi-layer classification and impurity removal on germ rice. Compared with traditional devices, it has a higher impurity classification effect, which helps to indirectly improve the oil yield of germ rice.
[0004] However, most existing germ rice products are screened using vibrating screens to separate impurities. These vibrating screens are large and noisy, resulting in a poor screening environment. Furthermore, small particles of impurities are easily screened along with the germ rice, leading to poor impurity removal. Therefore, this method does not meet the current requirements. To address this, we propose a low-temperature impurity removal and screening device for germ rice. Utility Model Content
[0005] The purpose of this invention is to provide a low-temperature impurity removal and screening device for germ rice, in order to solve the problems mentioned in the background art, where most existing germ rice is separated by vibrating screens to achieve impurity removal and screening. However, vibrating screens are large in size and have high vibration noise, resulting in a poor impurity removal environment. Furthermore, small particles of impurities are easily screened together with the germ rice, leading to poor impurity removal effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature impurity removal and screening device for germ rice, comprising: a screening shell, an impurity removal and screening component disposed inside the screening shell, an upper cover plate disposed at the upper end of the screening shell, a flow guide hood disposed at the lower end of the upper cover plate, a blower disposed at one end of the screening shell, a dust removal fan disposed at the other end of the screening shell, and a centralized cover disposed between both ends of the impurity removal and screening component and the blower and dust removal fan.
[0007] Preferably, the impurity removal and screening component includes an impurity removal box, the bottom surface of the cavity of the impurity removal box is provided with a notch, a rubber belt is provided inside the notch, and the outer edge of the rubber belt is fixed to the impurity removal box by an external bolt.
[0008] Preferably, one side surface of the impurity removal box is provided with an air blowing port, and the other side surface of the impurity removal box is provided with a dust removal port, and both the air blowing port and the dust removal port are connected to the central hood.
[0009] Preferably, the impurity removal and screening component further includes a cylinder, which is installed at the lower end of the rubber belt. The lower surface of the corner of the impurity removal box is provided with a mounting post, and the lower end of the mounting post is provided with a post sleeve. The mounting post is inserted into the post sleeve, and the post sleeve is fixed to the bottom surface of the screening housing.
[0010] Preferably, the central column on the lower surface of the drainage hood is provided with a discharge port, the upper surface of the upper cover is provided with a feed port, and the front and rear surfaces of the upper cover are provided with handles.
[0011] Preferably, both sides of the upper cover plate are provided with connecting plates, both sides of the screening housing are provided with connecting seats, the connecting seats are provided with connecting slots, and the connecting plates are inserted into the connecting slots.
[0012] Preferably, the lower end of the blower is provided with a fan frame, and the lower end of the dust removal fan is provided with a support frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) This utility model places the impurity removal box inside the screening shell, and sets a blower and a dust removal fan on both sides of the screening shell. The output end of the cylinder moves up and down, causing the upper part of the center of the rubber belt to bounce, thereby turning the germ rice over. When turning over, the impurities will also be turned over. The blower blows the impurities, and the dust removal fan cleans the scattered impurities and dust, thereby achieving the impurity removal screening of germ rice. In addition, the blower has a cooling effect compared to the vibration of the vibrating screen, achieving low-temperature impurity removal screening. This solves the problem that most germ rice is separated by vibrating screens, which are large in size and have high vibration noise, resulting in a poor impurity removal environment. Small particles of impurities are also easily screened together with the germ rice, resulting in poor impurity removal effect.
[0015] (2) By setting connecting plates on both sides of the upper cover plate and connecting seats on both sides of the screening housing, when installing the upper cover plate, the connecting plates are inserted into the connecting slots of the connecting seats to limit the installation of the upper cover plate, avoid positional deviation, improve stability, and facilitate quick disassembly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal structure of the screening shell of this utility model;
[0018] Figure 3 This is a schematic diagram of the impurity removal and screening component of this utility model;
[0019] Figure 4 This is a bottom view of the upper cover plate structure of this utility model;
[0020] In the diagram: 1. Screening shell; 2. Top cover plate; 3. Blower; 4. Blower frame; 5. Dust removal blower; 6. Support frame; 7. Feed inlet; 8. Handle; 9. Connecting plate; 10. Connecting seat; 11. Connecting slot; 12. Impurity removal screening assembly; 13. Impurity removal box; 14. Rubber belt; 15. Notch; 16. Air outlet; 17. Dust removal port; 18. Central hood; 19. Cylinder; 20. Mounting column; 21. Drainage hood; 22. Discharge port; 23. Column sleeve. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figure 1-4This utility model provides an embodiment of a low-temperature impurity removal and screening device for germ rice, comprising: a screening shell 1, an impurity removal and screening component 12 disposed inside the screening shell 1, an upper cover plate 2 disposed at the upper end of the screening shell 1, a flow guide hood 21 disposed at the lower end of the upper cover plate 2, a blower 3 disposed at one end of the screening shell 1, a dust removal fan 5 disposed at the other end of the screening shell 1, and a concentration hood 18 disposed between both ends of the impurity removal and screening component 12 and the blower 3 and the dust removal fan 5, the impurity removal and screening component 12 including an impurity removal box 13, a notch 15 disposed on the bottom surface of the cavity of the impurity removal box 13, a rubber belt 14 disposed inside the notch 15, and the outer edge of the rubber belt 14 being connected to the outer edge of the rubber belt 14 by an external bolt. The impurity removal box 13 is fixed. One side surface of the impurity removal box 13 is provided with an air blowing port 16, and the other side surface of the impurity removal box 13 is provided with a dust removal port 17. Both the air blowing port 16 and the dust removal port 17 are connected to the collection hood 18. The impurity removal screening component 12 also includes a cylinder 19, and the cylinder 19 is installed at the lower end of the rubber belt 14. The corners of the impurity removal box 13 are provided with mounting posts 20. The lower end of the mounting posts 20 is provided with a column sleeve 23, and the mounting posts 20 are inserted into the column sleeve 23. The column sleeve 23 is fixed to the bottom surface of the screening shell 1. The center post on the lower surface of the flow guide hood 21 is provided with a discharge port 22. The upper surface of the upper cover plate 2 is provided with a feed inlet 7. The front and rear surfaces of the upper cover plate 2 are provided with handles 8.
[0023] Place the impurity removal box 13 inside the screening housing 1. When placing it, insert the mounting column 20 into the column sleeve 23 to limit the position of the impurity removal box 13 and prevent it from shifting. At this time, the centralized cover 18 installed at the air blowing port 16 and the dust removal port 17 corresponds to the air outlet of the blower 3 and the dust removal fan 5, respectively.
[0024] The germ rice is poured into the feed inlet 7 and concentrated through the guide hood 21. It falls from the feed outlet 22 into the impurity removal box 13 and onto the rubber belt 14. The output end of the cylinder 19 moves up and down, causing the upper part of the central part of the rubber belt 14 to bounce, thus turning the germ rice over. When turning over, the impurities will also be turned over. At this time, the blower 3 and the dust removal fan 5 are started. The blower 3 blows away the impurities, and the dust removal fan 5 cleans up the scattered impurities and dust, thus achieving the impurity removal and screening of the germ rice. The blowing of the blower 3 also has a cooling effect compared to the vibration of the vibrating screen, achieving low-temperature impurity removal and screening. After the impurity removal and screening is completed, the impurity removal box 13 is removed and the germ rice is poured out.
[0025] Both sides of the top cover plate 2 are provided with connecting plates 9, and both sides of the screening housing 1 are provided with connecting seats 10. The connecting seats 10 are provided with connecting slots 11 inside, and the connecting plates 9 are inserted into the connecting slots 11. When installing the top cover plate 2, the connecting plates 9 are inserted into the connecting slots 11 to limit the installation of the top cover plate 2, prevent position displacement, and improve stability. When disassembly is required, simply lift the handle 8 upwards to separate the top cover plate 2 from the screening housing 1.
[0026] Please see Figure 1 The lower end of the blower 3 is equipped with a fan frame 4, and the lower end of the dust removal fan 5 is equipped with a support frame 6 to support the blower 3 and the dust removal fan 5.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A low-temperature impurity removal and screening device for germinated rice, comprising a screening shell (1), characterized in that: The screening housing (1) is provided with a cleaning and screening component (12) inside. The upper end of the screening housing (1) is provided with a top cover plate (2). The lower end of the top cover plate (2) is provided with a flow guide hood (21). One end of the screening housing (1) is provided with a blower (3). The other end of the screening housing (1) is provided with a dust removal fan (5). Both ends of the cleaning and screening component (12) are provided with a central cover (18) between the blower (3) and the dust removal fan (5).
2. The low-temperature impurity removal and screening device for germinated rice according to claim 1, characterized in that: The impurity removal screening component (12) includes an impurity removal box (13). The bottom surface of the cavity of the impurity removal box (13) is provided with a notch (15). A rubber belt (14) is provided inside the notch (15), and the outer edge of the rubber belt (14) is fixed to the impurity removal box (13) by an external bolt.
3. The low-temperature impurity removal and screening device for germinated rice according to claim 2, characterized in that: The impurity removal box (13) has an air blowing port (16) on one side surface and a dust removal port (17) on the other side surface, and both the air blowing port (16) and the dust removal port (17) are connected to the central cover (18).
4. The low-temperature impurity removal and screening device for germinated rice according to claim 2, characterized in that: The impurity removal screening component (12) also includes a cylinder (19), and the cylinder (19) is installed at the lower end of the rubber belt (14). The corners of the impurity removal box (13) are provided with mounting posts (20), and the lower end of the mounting post (20) is provided with a column sleeve (23). The mounting post (20) is inserted into the column sleeve (23), and the column sleeve (23) is fixed to the bottom surface inside the screening housing (1).
5. The low-temperature impurity removal and screening device for germinated rice according to claim 1, characterized in that: The central column on the lower surface of the flow hood (21) is provided with a discharge port (22), the upper surface of the upper cover plate (2) is provided with a feed port (7), and the front and rear surfaces of the upper cover plate (2) are provided with handles (8).
6. The low-temperature impurity removal and screening device for germinated rice according to claim 1, characterized in that: The upper cover plate (2) has connecting plates (9) on both sides of both ends, and the screening housing (1) has connecting seats (10) on both sides of both ends. The connecting seats (10) have connecting slots (11) inside, and the connecting plates (9) are inserted into the connecting slots (11).
7. The low-temperature impurity removal and screening device for germinated rice according to claim 1, characterized in that: The lower end of the blower (3) is provided with a fan frame (4), and the lower end of the dust removal fan (5) is provided with a support frame (6).