Agricultural product screening and selecting device
By absorbing dust through air tubes and filter cloth, desorbing materials by striking them with iron balls and magnets, clearing the screen cylinder with brush bristles, and cushioning materials with pads, the problem of dust diffusion in agricultural product screening devices is solved, achieving efficient screening and stable operation of the filter cloth, reducing pollution and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN YUNYUE AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
Existing agricultural product screening devices cause dust diffusion during centrifugal screening, leading to contamination of the inner wall of the device and the surface of the material, which affects the screening quality.
The system uses a combination of air tubes and filter cloth to absorb dust, and uses iron balls and magnets to strike the filter cloth to help desorb the attached materials. It also uses brushes to clear the screen cylinder and pads to reduce material splashing and collisions.
It effectively absorbs dust, reduces exhaust gas pollution during equipment operation, ensures stable operation of the filter cloth, improves screening quality and extends filter cloth life, and reduces the accumulation of impurities on the inner wall of the screen cylinder.
Smart Images
Figure CN224253425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sorting and selection devices, specifically an agricultural product screening and sorting device. Background Technology
[0002] Screening is a crucial step in the processing of agricultural products. During harvesting, transportation, and storage, impurities such as stones, soil, and debris may become mixed in. Screening separates these impurities from the granular agricultural products, ensuring product purity. For example, when processing corn kernels, screening removes stones, dust, and other contaminants, preventing them from entering subsequent processing stages or affecting the product's taste.
[0003] In existing technologies, centrifugal screening is used to screen agricultural products. However, during use and observation, it has been found that dust adhering to the surface of agricultural products will spread during centrifugal screening, causing pollution to the inner wall of the device and the surface of the material, thus affecting the screening quality of the material.
[0004] Therefore, an agricultural product screening and selection device is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The agricultural product screening and refining device of this utility model includes a shell, with a feed inlet at the top; a first discharge outlet and a second discharge outlet are sequentially provided at the bottom of the shell; a first box is provided at the bottom of the first discharge outlet; a second box is provided at the bottom of the second discharge outlet; a sieve cylinder is fixedly connected to the inner wall of the shell, and the outer wall of the sieve cylinder is perforated; a motor is fixedly connected to one side of the shell; a rotating shaft is fixedly connected to the output end of the motor, and the rotating shaft and the shell are rotatably connected; the outer wall of the rotating shaft... A spiral blade is fixedly connected to the screen, and the spiral blade is located at the bottom of the feed inlet; multiple stirring blades are fixedly connected to the outer wall of the rotating shaft, and the stirring blades are located inside the screen cylinder; the first discharge port is located at the bottom of the screen cylinder; an air pipe is provided and fixedly connected to the top of the shell; the end of the air pipe located inside the shell is connected to a third box; the third box is located at the top of the screen cylinder; a filter cloth is fixedly connected to the bottom of the third box; through the combined action of the air pipe and the filter cloth, the dust generated by the material in the shell during centrifugal screening can be effectively absorbed, thereby reducing the exhaust gas generated during the operation of the device and the pollution to the material.
[0007] Preferably, multiple springs are fixed to the top of the inner wall of the third box; an iron ball is fixed to the bottom of each spring and is located on top of the filter cloth; a connecting plate is fixed between adjacent stirring blades; a magnet is fixed to the inner wall of the connecting plate; the magnet and the iron ball are arranged correspondingly; through the combined action of the iron ball and the magnet, the filter cloth can be subjected to intermittent striking action from the iron ball, thereby assisting the filter cloth in detaching small materials adhering to its surface and ensuring the stable operation of the filter cloth.
[0008] Preferably, the outer wall of the filter cloth is fixed with multiple reinforcing ribs; by setting the reinforcing ribs, the structural strength of the filter cloth surface can be improved, thereby improving the tear resistance of the filter cloth, reducing the situation where the filter cloth is torn due to frequent impacts from iron balls, and extending the service life of the filter cloth.
[0009] Preferably, the outer wall of the connecting plate is fixed with a plurality of bristles; the bristles are located between the screen cylinder and the connecting plate; by setting the bristles, when the connecting plate rotates with the stirring blade, the bristles can penetrate and clear the holes on the surface of the screen cylinder, thereby reducing the material impurities accumulated on the inner wall of the screen cylinder and ensuring the stable screening of materials by the screen cylinder.
[0010] Preferably, a circular plate is fixed to the end of the rotating shaft; a plurality of arc-shaped blades are fixed to one side of the circular plate; by setting the circular plate and the arc-shaped blades, after the qualified material passes through the screen cylinder, part of it will enter the circular plate and be thrown out with the rotating arc-shaped blades, so as to disperse the material at the top of the second discharge port and reduce the burden on the material conveying at the second discharge port.
[0011] Preferably, the inner walls of both the first and second boxes are fixed with protective pads; the outer wall of the protective pads has an arc-shaped structure; by setting the protective pads, the materials falling from the first and second discharge ports will be buffered when they come into contact with the inner walls of the first and second boxes, thereby reducing the splashing and bumping of materials due to collision.
[0012] The advantages of this utility model are:
[0013] 1. The agricultural product screening and sorting device of this utility model, through the combined action of air pipe and filter cloth, enables the dust generated by the material inside the shell during centrifugal screening to be effectively absorbed, thereby reducing the exhaust gas generated during the operation of the device and the pollution to the material.
[0014] 2. The agricultural product screening and sorting device of this utility model uses the combined action of iron balls and magnets to allow the filter cloth to be subjected to intermittent impacts from the iron balls, thereby assisting the filter cloth in removing small materials adhering to its surface and ensuring the stable operation of the filter cloth. 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 description of the embodiments or the prior art 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 schematic diagram of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the sieve cylinder in this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the rotating shaft in this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting plate in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the third box in this utility model.
[0021] In the diagram: 1. Shell; 12. Inlet; 13. First outlet; 131. Second outlet; 14. Motor; 15. Shaft; 16. Spiral blade; 17. Screen cylinder; 18. Stirring blade; 19. First box; 191. Second box; 110. Air pipe; 111. Third box; 112. Filter cloth; 2. Connecting plate; 22. Magnet; 23. Spring; 24. Iron ball; 3. Reinforcing rib; 4. Brush bristles; 5. Circular plate; 52. Arc-shaped blade; 6. Protective pad. Detailed Implementation
[0022] 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 scope of protection of the present utility model.
[0023] Specific implementation examples are given below.
[0024] Please see Figures 1 to 5As shown in the figure, an agricultural product screening and refining device according to an embodiment of the present invention includes a housing 1, with a feed inlet 12 at the top of the housing 1; a first discharge outlet 13 and a second discharge outlet 131 sequentially opened at the bottom of the housing 1; a first box 19 is provided at the bottom of the first discharge outlet 13; a second box 191 is provided at the bottom of the second discharge outlet 131; a sieve cylinder 17 is fixedly connected to the inner wall of the housing 1, and the outer wall of the sieve cylinder 17 is multi-perforated; a motor 14 is fixedly connected to one side of the housing 1; a rotating shaft 15 is fixedly connected to the output end of the motor 14, and the rotating shaft 15 and the housing 1 are rotatably connected; the rotating shaft 14 is fixedly connected to the output end of the motor 14; the rotating shaft 15 is rotatably connected to the housing 1; the rotating shaft 14 is fixedly connected to the output end of the motor 14 ... A spiral blade 16 is fixedly connected to the outer wall of the shaft 15, and the spiral blade 16 is located at the bottom of the feed inlet 12; multiple stirring blades 18 are fixedly connected to the outer wall of the shaft 15, and the stirring blades 18 are located inside the screen cylinder 17; the first discharge port 13 is located at the bottom of the screen cylinder 17; an air pipe 110 is provided and fixedly connected to the top of the housing 1; the end of the air pipe 110 located inside the housing 1 is connected to a third box 111; the third box 111 is located at the top of the screen cylinder 17; a filter cloth 112 is fixedly connected to the bottom of the third box 111; during operation, materials can be added into the housing 1 through the feed inlet 12, and then the motor 14 can be started to drive it. The rotating shaft 15 rotates, which in turn drives the spiral blades 16 to rotate, allowing the spiral blades 16 to convey the material. The material is conveyed to the screen cylinder 17 and stirred and mixed by the rotating stirring blades 18. During the stirring process, fine impurities and small particles inside the material are screened out through the holes in the outer wall of the screen cylinder 17. These impurities fall into the first box 19 through the first discharge port 13 for collection. As the material is conveyed, the screened material passes through the screen cylinder 17 and falls into the second box 191 through the second discharge port 131, thus realizing the screening of the material by the device. The material at the screen cylinder 17 is... During the stirring process, the dust adhering to its surface will diffuse. At this time, by connecting the air pipe 110 to the centrifugal fan, the air pipe 110 and the third box 111 will be in a negative pressure state. Under the action of negative pressure, the dust diffused in the shell 1 can be absorbed. At the same time, the filter cloth 112 can block the small particles absorbed by the negative pressure, so as to reduce the conveying burden of the centrifugal fan. The output end of the centrifugal fan can be connected to the dust removal equipment. Through the combined action of the air pipe 110 and the filter cloth 112, the dust generated by the material in the shell 1 during centrifugal screening can be effectively absorbed, thereby reducing the exhaust gas generated during the operation of the device and the pollution to the material.
[0025] Please see Figure 4 and Figure 5As shown, multiple springs 23 are fixed to the top of the inner wall of the third box 111; iron balls 24 are fixed to the bottom of the springs 23, and the iron balls 24 are located on top of the filter cloth 112; a connecting plate 2 is fixed between adjacent stirring blades 18; a magnet 22 is fixed to the inner wall of the connecting plate 2; the magnet 22 and the iron balls 24 are arranged correspondingly; as the stirring blades 18 rotate, the connecting plate 2 will also rotate continuously with the magnet 22, and the distance between the magnet 22 and the iron balls 24 will continuously change during the rotation. When magnet 22 and iron ball 24 approach each other, iron ball 24 will be lifted up under the action of magnetic repulsion, and spring 23 will be in a compressed state. As magnet 22 moves away, iron ball 24 will return to its original position and strike filter cloth 112, causing filter cloth 112 to shake and shake off the material attached to its surface. Through the combined action of iron ball 24 and magnet 22, filter cloth 112 can be subjected to the intermittent striking action of iron ball 24, thereby assisting filter cloth 112 in removing small materials attached to its surface and ensuring the stable operation of filter cloth 112.
[0026] Please see Figure 5 As shown, the outer wall of the filter cloth 112 is fixed with a plurality of reinforcing ribs 3; by setting the reinforcing ribs 3, the reinforcing ribs 3 can improve the structural strength of the surface of the filter cloth 112, thereby improving the tear resistance of the filter cloth 112, reducing the situation where the filter cloth 112 is torn and damaged due to frequent impacts of the iron ball 24, and extending the service life of the filter cloth 112.
[0027] Please see Figure 4 As shown, multiple brush bristles 4 are fixed to the outer wall of the connecting plate 2; the brush bristles 4 are located between the screen cylinder 17 and the connecting plate 2; by setting the brush bristles 4, when the connecting plate 2 rotates with the stirring blade 18, the brush bristles 4 can penetrate and clear the holes on the surface of the screen cylinder 17, thereby reducing the material impurities accumulated on the inner wall of the screen cylinder 17 and ensuring the stable screening of materials by the screen cylinder 17.
[0028] Please see Figure 4 As shown, a circular plate 5 is fixedly connected to the end of the rotating shaft 15; a plurality of arc-shaped blades 52 are fixedly connected to one side of the circular plate 5; by setting the circular plate 5 and the arc-shaped blades 52, after the qualified material passes through the screen cylinder 17, part of it will enter the circular plate 5 and be thrown out with the rotating arc-shaped blades 52, so as to disperse the material at the top of the second discharge port 131 and reduce the burden on the material conveying at the second discharge port 131.
[0029] Please see Figure 1 and Figure 2As shown, the inner walls of the first box 19 and the second box 191 are both fixed with protective pads 6; the outer wall of the protective pad 6 is an arc-shaped structure; by setting the protective pad 6, the material falling from the first discharge port 13 and the second discharge port 131 will be buffered when it comes into contact with the inner walls of the first box 19 and the second box 191, thereby reducing the splashing and bumping of the material due to collision.
[0030] Working principle: Material is added into the housing 1 through the feed inlet 12. Then, the motor 14 is started to drive the rotating shaft 15 to rotate. The rotating shaft 15 drives the spiral blades 16 to rotate, so that the spiral blades 16 can convey the material in a spiral manner. The material is conveyed to the screen cylinder 17 and stirred and mixed by the rotating stirring blades 18. During the stirring process, the fine impurities and small particles inside the material are screened out through the holes in the outer wall of the screen cylinder 17. These impurities fall into the first box 19 through the first discharge port 13 for collection. As the material is conveyed, the screened material passes through the screen cylinder 17 and falls into the second box 191 through the second discharge port 131. The device screens materials. During the stirring process, dust adhering to the surface of the material at screen cylinder 17 diffuses. At this time, connecting air pipe 110 to a centrifugal fan creates a negative pressure state in air pipe 110 and the third box 111. Under the action of negative pressure, the dust diffused in the shell 1 can be absorbed. At the same time, filter cloth 112 can block small particles absorbed by the negative pressure, thereby reducing the conveying burden of the centrifugal fan. The output end of the centrifugal fan can be connected to a dust removal device. As the stirring blade 18 rotates, the connecting plate 2 also rotates the magnet 22 continuously. During the rotation of the magnet 22, the distance between it and the iron ball 24 changes continuously. When ball 24 approaches, it will be lifted by magnetic repulsion, and spring 23 will be compressed. As magnet 22 moves away, iron ball 24 will return to its original position and strike filter cloth 112, causing filter cloth 112 to shake and shake off the material attached to its surface. By setting reinforcing ribs 3, the structural strength of the surface of filter cloth 112 can be improved, thereby improving the tear resistance of filter cloth 112, reducing the tearing damage caused by frequent strikes of iron ball 24, and extending the service life of filter cloth 112. By setting bristles 4, when the connecting plate 2 rotates with the stirring blade 18, the bristles 4 can make contact with the holes on the surface of screen cylinder 17. The screen cylinder 17 is thoroughly cleaned and cleared to reduce the accumulation of material impurities on its inner wall, ensuring stable screening of materials. The circular plate 5 and arc-shaped blades 52 allow qualified materials to pass through the screen cylinder 17, with some material entering the circular plate 5 and being ejected by the rotating arc-shaped blades 52. This disperses the material at the top of the second discharge port 131, reducing the burden on material transport at the second discharge port 131. The protective pad 6 cushions the material falling from the first and second discharge ports 131 when it contacts the inner walls of the first and second boxes 19 and 191, reducing splashing and collisions.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An agricultural product screening and refining device, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a feed inlet (12); the bottom of the housing (1) is provided with a first discharge outlet (13) and a second discharge outlet (131) in sequence; the bottom of the first discharge outlet (13) is provided with a first box (19); the bottom of the second discharge outlet (131) is provided with a second box (191); a screen cylinder (17) is fixedly connected to the inner wall of the housing (1), and the outer wall of the screen cylinder (17) is multi-perforated; a motor (14) is fixedly connected to one side of the housing (1); a rotating shaft (15) is fixedly connected to the output end of the motor (14), and the rotating shaft (15) and the housing (1) are rotatably connected; the rotating shaft (15) is fixedly connected to the output end of the motor (14). 15) A spiral blade (16) is fixed to the outer wall, and the spiral blade (16) is located at the bottom of the feed inlet (12); a plurality of stirring blades (18) are fixed to the outer wall of the rotating shaft (15), and the stirring blades (18) are located inside the screen cylinder (17); the first discharge port (13) is located at the bottom of the screen cylinder (17); an air pipe (110) is provided through and fixed to the top of the shell (1); the end of the air pipe (110) located inside the shell (1) is connected to a third box (111); the third box (111) is located at the top of the screen cylinder (17); a filter cloth (112) is fixed to the bottom of the third box (111).
2. The agricultural product screening and refining device according to claim 1, characterized in that: Multiple springs (23) are fixed to the top of the inner wall of the third box (111); an iron ball (24) is fixed to the bottom of the spring (23), and the iron ball (24) is located on the top of the filter cloth (112); a connecting plate (2) is fixed between adjacent stirring blades (18); a magnet (22) is fixed to the inner wall of the connecting plate (2); the magnet (22) and the iron ball (24) are arranged correspondingly.
3. The agricultural product screening and refining device according to claim 2, characterized in that: The filter cloth (112) has multiple reinforcing ribs (3) fixed to its outer wall.
4. The agricultural product screening and refining device according to claim 3, characterized in that: The outer wall of the connecting plate (2) is fixed with a plurality of bristles (4); the bristles (4) are located between the screen cylinder (17) and the connecting plate (2).
5. The agricultural product screening and refining device according to claim 4, characterized in that: A circular plate (5) is fixedly connected to the end of the rotating shaft (15); a plurality of arc-shaped blades (52) are fixedly connected to one side of the circular plate (5).
6. The agricultural product screening and refining device according to claim 5, characterized in that: The inner walls of the first box (19) and the second box (191) are both fixed with a protective pad (6); the outer wall of the protective pad (6) is an arc-shaped structure.