A grain processing air separation device
By incorporating a connecting frame, filter bag, and limiting frame structure into the air classifier, the problems of inconvenient impurity cleaning and excessively fast falling speed are solved, thus achieving convenient impurity cleaning and improved air classifier performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU DINGYU FOOD CO LTD
- Filing Date
- 2025-08-23
- Publication Date
- 2026-07-21
Smart Images

Figure CN224525285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air separation equipment technology, specifically to an air separation device for grain processing. Background Technology
[0002] In grain processing, air separation equipment is mainly used to separate and clean grains based on differences in density, size, and shape using airflow. During air separation, impurities such as straw and empty husks inside the grain can be effectively separated. However, after separating these impurities, they are dispersed on the outside of the equipment, making subsequent cleaning difficult. Furthermore, the excessively fast falling speed during air separation can result in some impurities not being effectively removed. Therefore, improvements to existing technology are necessary. Utility Model Content
[0003] The purpose of this invention is to provide an air separation device for grain processing, which solves the problems of impurities after air separation being difficult to clean and the poor removal effect caused by excessive falling speed.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a grain processing air separation device, including a screening box, an air separation box fixedly connected to the upper end of the screening box, a flow damping plate rotatably connected inside the air separation box, an angle positioning mechanism provided on the outer side of the air separation box, a feeding hopper fixedly connected to the upper end of the air separation box, a connecting frame slidably connected to the lower left end of the air separation box, a filter bag fixedly connected to the outer side of the connecting frame, two symmetrically distributed guide rod frames fixedly connected to the outer side of the air separation box, a limit frame slidably connected to the outer side of the guide rod frames, and a spring provided on the outer side of the guide rod frames.
[0005] Preferably, a blower is fixedly installed on the outside of the air classifier box, and a discharge port is fixedly connected to the lower end of the screening box, which can discharge the raw materials after air classification and screening.
[0006] Preferably, the limiting frame slides in contact with the air separator and the connecting frame, and the limiting frame can limit the movement of the connecting frame.
[0007] Preferably, one end of the spring is fixedly connected to the limiting frame, and the other end of the spring is fixedly connected to the guide rod frame. The spring can support the limiting frame through its elastic force.
[0008] Preferably, the angle positioning mechanism includes a multi-grooved wheel, the multi-grooved wheel is fixedly connected to the outer side of the connecting shaft of the flow buffer plate, a fixed plate is fixedly connected to the outer side of the air separator, a handle frame is slidably connected inside the fixed plate, a snap-fit frame is fixedly connected to the lower end of the handle frame, and a spring is provided on the outer side of the handle frame rod, so that the handle frame can drive the snap-fit frame to move.
[0009] Preferably, the snap-fit bracket snaps into the multi-grooved wheel, and the snap-fit bracket is slidably connected to the air separator box. The snap-fit bracket can position the angle of the flow deflector plate through the multi-grooved wheel.
[0010] Preferably, one end of the second spring is fixedly connected to the snap-fit bracket, and the other end of the second spring is fixedly connected to the fixing plate. The second spring can support the snap-fit bracket through its elastic force.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adds a connecting frame, filter bag and limiting frame to the air separator box. The connecting frame and filter bag can be installed on the outside of the air separator box. The limiting frame limits the connecting frame. During the air separator process, the filter bag can collect impurities such as straw, which facilitates subsequent cleaning.
[0012] 2. This utility model adds a flow-retarding plate, multi-grooved wheels, and a snap-fit frame to the air separator. During use, the angle of the flow-retarding plate can be positioned by snapping the snap-fit frame with the multi-grooved wheels, thus making it easy to adjust the angle of the flow-retarding plate. The inclined surface of the flow-retarding plate can slow down the sliding speed of the grains and improve the air separation effect. Attached Figure Description
[0013] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ; Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ; Figure 3 For the present utility model Figure 1 A three-dimensional sectional view; Figure 4 For the present utility model Figure 3 A three-dimensional magnified view of the flow control plate; Figure 5 For the present utility model Figure 1 Enlarged view of the A-section structure; Figure 6 For the present utility model Figure 2 Enlarged view of the structure of part B.
[0014] In the diagram: 1. Screening box; 2. Air classifier box; 3. Flow buffer plate; 4. Angle positioning mechanism; 5. Fan; 6. Discharge port; 7. Feed hopper; 8. Connecting frame; 9. Filter bag; 10. Guide rod frame; 11. Limiting frame; 12. Spring 1; 41. Multi-grooved wheel; 42. Fixing plate; 43. Handle frame; 44. Clip-on frame; 45. Spring 2. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-6 A grain processing air separation device includes a screening box 1, an air separation box 2 fixedly connected to the upper end of the screening box 1, a flow damping plate 3 rotatably connected inside the air separation box 2, an angle positioning mechanism 4 provided on the outer side of the air separation box 2, a feeding hopper 7 fixedly connected to the upper end of the air separation box 2, a connecting frame 8 slidably connected to the lower left end of the air separation box 2, a filter bag 9 fixedly connected to the outer side of the connecting frame 8, two symmetrically distributed guide rod frames 10 fixedly connected to the outer side of the air separation box 2, a limit frame 11 slidably connected to the outer side of the guide rod frames 10, and a spring 12 provided on the outer side of the guide rod frames 10.
[0017] Please see Figure 1-6 A blower 5 is fixedly installed on the outside of the air classifier box 2. A discharge port 6 is fixedly connected to the lower end of the screening box 1. The discharge port 6 can discharge the raw material after air classification and screening. The limiting frame 11 slides in contact with the air classifier box 2 and slides in contact with the connecting frame 8. The limiting frame 11 can limit the connecting frame 8. One end of the spring 12 is fixedly connected to the limiting frame 11, and the other end of the spring 12 is fixedly connected to the guide rod frame 10. The spring 12 can support the limiting frame 11 through its elasticity.
[0018] Please see Figure 1-6 The angle positioning mechanism 4 includes a multi-grooved wheel 41. The multi-grooved wheel 41 is fixedly connected to the outer side of the connecting shaft of the flow depressor 3. A fixed plate 42 is fixedly connected to the outer side of the air separator 2. A handle frame 43 is slidably connected inside the fixed plate 42. A snap-fit frame 44 is fixedly connected to the lower end of the handle frame 43. A second spring 45 is provided on the outer side of the handle frame 43. The handle frame 43 can drive the snap-fit frame 44 to move. The snap-fit frame 44 snaps into the multi-grooved wheel 41 and slides in connection with the air separator 2. The snap-fit frame 44 can position the angle of the flow depressor 3 through the multi-grooved wheel 41. One end of the second spring 45 is fixedly connected to the snap-fit frame 44, and the other end of the second spring 45 is fixedly connected to the fixed plate 42. The second spring 45 can support the snap-fit frame 44 through its elasticity.
[0019] The specific implementation process of this utility model is as follows: When in use, pull the handle frame 43, the handle frame 43 drives the snap-fit frame 44 to move, and compresses the second spring 45. When the snap-fit frame 44 disengages from the multi-groove wheel 41, the adjustment of the use angle of the flow buffer 3 can be released. After the adjustment is completed, release the handle frame 43, the second spring 45 returns to its original position, and the second spring 45 can drive the snap-fit frame 44 to snap into the inside of the multi-groove wheel 41 again through the elastic force, thereby completing the angle adjustment of the flow buffer 3. Then start the blower 5 and put the raw material into the hopper 7. The raw material falls through the hopper 7 onto the outside of the buffer plate 3 and slides down the slope of the buffer plate 3. During the sliding process, the speed can be effectively reduced. At the same time, the airflow generated by the blower 5 can perform air separation on the raw material. The straw and other materials produced by air separation can be filtered by the filter bag 9 and remain inside the filter bag 9. After air separation, pull the limit frame 11. The limit frame 11 compresses the spring 12. When the limit frame 11 is separated from the connecting frame 8, the limit on the connecting frame 8 can be released. Then remove the filter bag 9 and the connecting frame 8, which makes it easier to clean and collect the impurities produced by air separation.
[0020] 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 grain processing air separation device, comprising a screening box (1), characterized in that: The upper end of the screening box (1) is fixedly connected to the air classifier box (2), the air classifier box (2) is rotatably connected to the inside of the air classifier box (2), the outside of the air classifier box (2) is provided with an angle positioning mechanism (4), the upper end of the air classifier box (2) is fixedly connected to the feed hopper (7), the lower left end of the air classifier box (2) is slidably connected to the connecting frame (8), the outside of the connecting frame (8) is fixedly connected to the filter bag (9), the outside of the air classifier box (2) is fixedly connected to two symmetrically distributed guide rod frames (10), the outside of the guide rod frame (10) is slidably connected to the limit frame (11), and the outside of the guide rod frame (10) is provided with a spring (12).
2. The air separation equipment for grain processing according to claim 1, characterized in that: A blower (5) is fixedly installed on the outside of the air classifier (2), and a discharge port (6) is fixedly connected to the lower end of the screening box (1).
3. The air separation equipment for grain processing according to claim 1, characterized in that: The limiting frame (11) slides in contact with the air separator (2), and the limiting frame (11) slides in contact with the connecting frame (8).
4. The air separation equipment for grain processing according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the limiting frame (11), and the other end of the spring (12) is fixedly connected to the guide rod frame (10).
5. The air separation equipment for grain processing according to claim 1, characterized in that: The angle positioning mechanism (4) includes a multi-grooved wheel (41). The multi-grooved wheel (41) is fixedly connected to the outside of the connecting shaft of the flow control plate (3). A fixing plate (42) is fixedly connected to the outside of the air separator (2). A handle frame (43) is slidably connected inside the fixing plate (42). A snap-fit frame (44) is fixedly connected to the lower end of the handle frame (43). A spring (45) is provided on the outside of the rod of the handle frame (43).
6. The air separation equipment for grain processing according to claim 5, characterized in that: The snap-fit bracket (44) snaps into the multi-grooved wheel (41), and the snap-fit bracket (44) is slidably connected to the air separator (2).
7. The air separation equipment for grain processing according to claim 5, characterized in that: One end of the second spring (45) is fixedly connected to the snap-fit bracket (44), and the other end of the second spring (45) is fixedly connected to the fixing plate (42).