A grain recycling air separation device
By combining scraper tumbling and wedge vibration structure with conveyor belt to achieve uniform grain feeding, and high-speed fan blade airflow to assist separation and collection box to collect impurities, the problems of uneven feeding, grain sticking and inconvenient impurity handling in grain air separation device are solved, and efficient grain screening and impurity handling are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOHE WANYI GRAIN MACHINERY CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
Existing grain air separation devices suffer from problems such as uneven feeding, grain particle sticking and accumulation, insufficient air separation, low impurity removal rate, and inconvenient handling of impurities after air separation.
The system employs a scraper-driven turning and wedge-block vibration structure in conjunction with a conveyor belt for uniform feeding, combined with high-speed fan blades to generate airflow for separation, and an integrated collection box to collect impurities, thereby achieving uniform feeding of grains, thorough air separation, and centralized processing of impurities.
It achieves uniform feeding of grain, stable screening, and efficient separation and centralized treatment of impurities, thereby improving air separation efficiency and environmental protection.
Smart Images

Figure CN224272166U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing technology, and more specifically, to a grain recycling air separation device. Background Technology
[0002] In grain processing and storage, air separation is a commonly used method for removing impurities, mainly used to remove light impurities (such as dust, broken husks, and straw) and some heavy impurities from grains, thereby improving the purity and quality of the grains. Currently, common air separation devices typically include a feeding mechanism, an air separation chamber, a blower system, and a discharge mechanism.
[0003] However, existing grain air separation devices still have many problems in actual use. First, the feeding process of traditional devices is not uniform enough, which easily leads to local accumulation or empty material, affecting the air separation efficiency and stability. Second, during the air separation process, due to the lack of an effective auxiliary stirring structure, some grain particles stick together or accumulate, resulting in insufficient air separation and low impurity removal rate. Third, in existing equipment, impurities after air separation are mostly directly discharged or collected disorderly, which not only causes environmental pollution but also increases the difficulty of subsequent cleanup work. Utility Model Content
[0004] The purpose of this invention is to provide a grain circulation air separation device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain circulating air separation device, comprising a second rotating shaft, a scraper fixedly connected to the outer wall of the second rotating shaft, one end of the second rotating shaft connected to the output end of a second motor, a first connecting plate fixedly connected to the lower end of the second motor, a second fixing plate fixedly connected to one side of the first connecting plate, a housing fixedly connected to the outer wall of the second fixing plate, an air inlet pipe fixedly connected to one side of the housing, a first support plate fixedly connected to the lower end of the housing for introducing external airflow, and a feeding device and a screening device connected to the housing.
[0006] As a preferred technical solution of this utility model, the feeding pipe of the feeding device is fixedly connected to the outer shell on one side for introducing the grain raw material to be screened into the device. A first fixing plate is provided on one side of the feeding pipe, and a baffle is fixedly connected to the upper end of the first fixing plate. A chuck is fixedly connected to one side of the baffle.
[0007] As a preferred embodiment of this utility model, the chuck is rotatably connected to a fourth rotating shaft via a sliding bearing, the lower end of the fourth rotating shaft is fixedly connected to a wedge, and one end of the fourth rotating shaft is fixedly connected to a second turntable.
[0008] As a preferred embodiment of this utility model, a conveyor belt is sleeved on the outer wall of the second turntable, the conveyor belt is sleeved on the first turntable, and a first rotating shaft is fixedly connected inside the first turntable.
[0009] As a preferred embodiment of this utility model, one end of the first rotating shaft is connected to the output end of the first motor, the lower end of the first motor is fixedly connected to the second support plate, and the lower end of the second support plate is fixedly connected to the base plate.
[0010] As a preferred technical solution of this utility model, the air outlet pipe on one side of the screening device is fixedly connected to the outer shell, the inner wall of the air outlet pipe is fixedly connected to the second connecting plate, the air outlet pipe is fixedly connected to the filter plate on one side, and the outer wall of the air outlet pipe is connected to the collection box by screws for collecting impurities separated during the air separation process, which is convenient for centralized processing.
[0011] As a preferred technical solution of this utility model, a third motor is fixedly connected to one side of the second connecting plate, the output end of the third motor is connected to a third rotating shaft, and a fan blade is fixedly connected to one end of the third rotating shaft to generate high-speed airflow and assist in the separation process of light impurities in grain.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) In this device, the first motor drives the first rotating shaft to rotate, and the first rotating shaft drives the first turntable to rotate, thereby transmitting power to the conveyor belt sleeved on the outer wall of the first turntable. The conveyor belt drives the second turntable to rotate synchronously, and the second turntable drives the fourth rotating shaft fixedly connected to it to rotate. The wedge block fixed at the lower end of the fourth rotating shaft moves accordingly, thereby causing the first fixed plate to vibrate and realize the uniform feeding of grain.
[0014] (2) In this device, the second motor drives the second rotating shaft to rotate, and the scraper fixedly connected to the outer wall of the second rotating shaft moves accordingly, thereby turning the grain and making the device achieve a good screening effect. The third motor drives the third rotating shaft to rotate, and the fan blade fixed at one end of the third rotating shaft rotates at high speed to assist in the separation process of light impurities in the grain. The collection box is used to collect the impurities separated during the air separation process for centralized processing. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a front structural diagram of a grain recycling air separation device according to an embodiment of the present utility model;
[0017] Figure 2 This is a side view of a grain recycling air separation device according to an embodiment of the present utility model;
[0018] Figure 3 This is a front structural diagram of the feeding device of a grain circulating air separation device according to an embodiment of the present utility model;
[0019] Figure 4 This is a structural schematic diagram of the front view of the feeding device at point A of a grain circulating air separation device according to an embodiment of the present utility model;
[0020] Figure 5 This is a schematic diagram of the front of the screening device of a grain recycling air separation device according to an embodiment of the present utility model.
[0021] Figure label:
[0022] 1. Air inlet duct; 2. Second motor; 3. First connecting plate; 4. Outer casing; 5. Air outlet duct; 6. First support plate; 7. Base plate; 8. Second rotating shaft; 9. Scraper; 10. First fixing plate; 11. Chuck; 12. Fourth rotating shaft; 13. Wedge; 14. Second support plate; 15. Baffle; 16. Feed pipe; 17. First turntable; 18. First rotating shaft; 19. First motor; 20. Second turntable; 21. Conveyor belt; 22. Second connecting plate; 23. Third motor; 24. Third rotating shaft; 25. Fan blade; 26. Filter plate; 27. Collection box; 28. Second fixing plate. Detailed Implementation
[0023] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:
[0024] Example 1
[0025] refer to Figures 1 to 5 Example 1 describes a second rotating shaft 8, with a scraper 9 fixedly connected to its outer wall. One end of the second rotating shaft 8 is connected to the output end of a second motor 2. The lower end of the second motor 2 is fixedly connected to a first connecting plate 3. One side of the first connecting plate 3 is fixedly connected to a second fixing plate 28. The outer wall of the second fixing plate 28 is fixedly connected to a housing 4. One side of the housing 4 is fixedly connected to an air inlet pipe 1. The lower end of the housing 4 is fixedly connected to a first support plate 6. The housing 4 connects to a feeding device and a screening device. One side of the air outlet pipe 5 on the screening device is fixedly connected to the housing 4. The inner wall of the air outlet pipe 5 is fixedly connected to a second connecting plate 22. One side of the air outlet pipe 5 is fixedly connected to a filter plate 26. The outer wall of the air outlet pipe 5 is connected to a collection box 27 by screws. One side of the second connecting plate 22 is fixedly connected to a third motor 23. The output end of the third motor 23 is connected to a third rotating shaft 24. One end of the third motor 24 is fixedly connected to a fan blade 25.
[0026] In this embodiment, the second motor 2 drives the second rotating shaft 8 to rotate, and the scraper 9 fixedly connected to the outer wall of the second rotating shaft 8 moves accordingly, thereby turning the grain and enabling the device to achieve a good screening effect. The third motor 23 drives the third rotating shaft 24 to rotate, and the fan blade 25 fixed at one end of the third rotating shaft 24 rotates at high speed to assist in the separation process of light impurities in the grain. The collection box 27 is used to collect the impurities separated during the air separation process for centralized processing.
[0027] Example 2
[0028] refer to Figures 1 to 5 Example 2 is a further description of Example 1, including a feeding device. A housing 4 is fixedly connected to one side of the feed pipe 16 on the feeding device. A first fixing plate 10 is provided on one side of the feed pipe 16. A baffle 15 is fixedly connected to the upper end of the first fixing plate 10. A chuck 11 is fixedly connected to one side of the baffle 15. A fourth rotating shaft 12 is rotatably connected inside the chuck 11 via a sliding bearing. A wedge block 13 is fixedly connected to the lower end of the fourth rotating shaft 12. A second turntable 20 is fixedly connected to one end of the fourth rotating shaft 12. A conveyor belt 21 is sleeved on the outer wall of the second turntable 20. The conveyor belt 21 is sleeved on the first turntable 17. A first rotating shaft 18 is fixedly connected inside the first turntable 17. One end of the first rotating shaft 18 is connected to the output end of a first motor 19. A second support plate 14 is fixedly connected to the lower end of the first motor 19. A base plate 7 is fixedly connected to the lower end of the second support plate 14.
[0029] In this embodiment, the first motor 19 drives the first rotating shaft 18 to rotate, and the first rotating shaft 18 drives the first turntable 17 to rotate, thereby transmitting power to the conveyor belt 21 sleeved on the outer wall of the first turntable 17. The conveyor belt 21 drives the second turntable 20 to rotate synchronously, and the second turntable 20 drives the fourth rotating shaft 12 fixedly connected to it to rotate. The wedge block 13 fixed at the lower end of the fourth rotating shaft 12 moves accordingly, thereby causing the first fixed plate 10 to vibrate, so as to achieve uniform feeding of grain.
[0030] In practical applications, the first motor 19 drives the first rotating shaft 18 to rotate, which in turn drives the first turntable 17 to rotate, thereby transmitting power to the conveyor belt 21 sleeved on the outer wall of the first turntable 17. The conveyor belt 21 drives the second turntable 20 to rotate synchronously, which in turn drives the fourth rotating shaft 12 fixedly connected to it to rotate. The wedge block 13 fixed at the lower end of the fourth rotating shaft 12 moves accordingly, thereby driving the chuck 11 and the first fixed plate 10 connected to it to vibrate, making the feeding process smoother and more uniform, and realizing stable and continuous feeding of grain; the second motor 2 drives the second rotating shaft 8 to rotate, and the outer wall of the second rotating shaft 8 is fixedly connected to The scraper 9 moves accordingly, turning the grain over to achieve a good screening effect; the third motor 23 drives the third rotating shaft 24 to rotate, and the fan blade 25 fixed at one end of the third rotating shaft 24 rotates at high speed, thereby generating a strong airflow in the air outlet pipe 5, forming a stable air separation environment, and assisting in the effective separation of light impurities in the grain; the separated impurities enter the air outlet pipe 5 with the airflow and are finally collected in the collection box 27 connected to the outer wall of the air outlet pipe 5 by screws, which is convenient for centralized processing and cleaning, avoiding secondary pollution. The overall structure realizes efficient and coordinated operation of the entire process from feeding, screening to impurity collection in the grain circulation air separation process.
[0031] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A grain circulating air separation device, characterized in that, It includes a second rotating shaft (8), a scraper (9) is fixedly connected to the outer wall of the second rotating shaft (8), one end of the second rotating shaft (8) is connected to the output end of the second motor (2), the lower end of the second motor (2) is fixedly connected to the first connecting plate (3), one side of the first connecting plate (3) is fixedly connected to the second fixing plate (28), the outer wall of the second fixing plate (28) is fixedly connected to the outer shell (4), one side of the outer shell (4) is fixedly connected to the air inlet pipe (1), the lower end of the outer shell (4) is fixedly connected to the first support plate (6), and the outer shell (4) is connected to the feeding device and the screening device.
2. The grain circulating air separation device according to claim 1, characterized in that, The feeding pipe (16) on the feeding device is fixedly connected to the outer shell (4) on one side. A first fixing plate (10) is provided on one side of the feeding pipe (16). A baffle (15) is fixedly connected to the upper end of the first fixing plate (10). A chuck (11) is fixedly connected to one side of the baffle (15).
3. The grain circulating air separation device according to claim 2, characterized in that, The chuck (11) is rotatably connected to the fourth rotating shaft (12) through a sliding bearing. The lower end of the fourth rotating shaft (12) is fixedly connected to the wedge block (13), and one end of the fourth rotating shaft (12) is fixedly connected to the second turntable (20).
4. A grain circulating air separation device according to claim 3, characterized in that, The outer wall of the second turntable (20) is fitted with a conveyor belt (21), the conveyor belt (21) is fitted with the first turntable (17), and the first turntable (17) is fixedly connected to the first rotating shaft (18).
5. A grain circulating air separation device according to claim 4, characterized in that, One end of the first rotating shaft (18) is connected to the output end of the first motor (19), the lower end of the first motor (19) is fixedly connected to the second support plate (14), and the lower end of the second support plate (14) is fixedly connected to the base plate (7).
6. A grain circulating air separation device according to claim 1, characterized in that, The air outlet pipe (5) on the screening device is fixedly connected to the outer shell (4) on one side, the second connecting plate (22) is fixedly connected to the inner wall of the air outlet pipe (5), the filter plate (26) is fixedly connected to one side of the air outlet pipe (5), and the collection box (27) is connected to the outer wall of the air outlet pipe (5) by screws.
7. A grain circulating air separation device according to claim 6, characterized in that, A third motor (23) is fixedly connected to one side of the second connecting plate (22). The output end of the third motor (23) is connected to a third rotating shaft (24). One end of the third rotating shaft (24) is fixedly connected to a fan blade (25).