A method and apparatus for removing impurities from sugar beet seeds

Abstract

This invention relates to the field of seed impurity removal equipment, and more particularly to a method and apparatus for removing impurities from sugar beet seeds. The sugar beet seed impurity removal apparatus includes: a barrel, inside which is a removal cylinder with a removal chamber; a vibration generator at the bottom of the barrel; a stirring assembly, including a drive motor, a drive shaft, and a stirring rod; a dynamic enclosure assembly, including a mounting shaft, a bottom screen, side screens, a moving mechanism, a flexible screen, and an enclosure mechanism; a circulation guiding assembly, including a water circulation mechanism, a circulation pipe, and a filtration mechanism; and a vibrating screening assembly, including a vibration transmission mechanism, a power recovery mechanism, and an anti-clogging mechanism. This application utilizes multiple methods to screen seeds within the enclosure area through the design of the stirring assembly, circulation guiding assembly, and vibrating screening assembly, significantly reducing labor costs and achieving automated, intelligent, and efficient operation.

Description

Technical Field

[0001] This invention relates to the field of seed impurity removal equipment technology, specifically to a method and apparatus for removing impurities from sugar beet seeds. Background Technology

[0002] Seed processing is a crucial step in ensuring seed quality and achieving commercial production. Through a series of treatments, including cleaning, polishing, winnowing, gravity separation, pelleting, and coating, seeds not only increase their commercial and technological value but also effectively reduce labor intensity, improve work efficiency, and facilitate seed storage and transportation, thereby enhancing their market competitiveness. Seed processing can effectively improve seed purity, germination rate, and seedling uniformity. Existing pelleting technology has strict requirements on the particle size of polished sugar beet seeds. Generally, only polished sugar beet seeds with particle sizes in the range of 2.0-2.5 mm and 2.5-3.0 mm can be used for pelleting to ensure that the pelleted seeds meet the national standard particle size of 3.5-4.75 mm. However, in the process of sugar beet seed processing, mechanical selection can only effectively remove seeds with inconsistent particle sizes, but it is not effective in selecting seeds with similar particle sizes but different maturity levels. In addition, after beet seeds are harvested, the leaves and stems mixed in shrink to a size and weight similar to the seeds due to drying and curling. These cannot be effectively removed by wind separation and sieving, and excessive selection can easily lead to mechanical damage and loss of seed viability.

[0003] Due to the aforementioned problems, seeds that have undergone specific gravity and wind selection are often directly soaked. After soaking, impurities such as straw and leaves in the seeds absorb water, increase in size, and adhere to the seeds, making it difficult to remove impurities. Summary of the Invention

[0004] The purpose of this invention is to provide a method and apparatus for removing impurities from sugar beet seeds, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: On the one hand, a beet seed impurity removal device is provided, comprising: The machine barrel has a cleaning cylinder inside, the cleaning cylinder has a cleaning chamber, and a vibration generator is installed at the bottom of the machine barrel to drive the cleaning cylinder to vibrate. A stirring assembly is disposed in the impurity removal chamber. The stirring assembly includes a drive motor, a drive shaft, and a stirring rod. The drive motor is used to drive the drive shaft to rotate, and the stirring rod is disposed on the drive shaft to stir the seeds in the impurity removal chamber. A dynamic enclosure assembly includes a mounting shaft, a bottom screen, side screens, a moving mechanism, a flexible screen, and an enclosure mechanism. The mounting shaft is disposed in the impurity removal chamber, the side screens are arranged around the mounting shaft, the moving mechanism is used to drive the side screens to move radially along the mounting shaft, and the enclosure mechanism is used to drive the flexible screen to enclose the gap between adjacent side screens. A circulation guide assembly includes a water circulation mechanism, a circulation pipe, and a filtration mechanism. The water circulation mechanism drives water to circulate through the circulation pipe on both sides of the side screen, thereby driving the seeds to move radially along the mounting shaft. The filtration mechanism filters the water entering the circulation pipe. A vibrating sieving assembly includes a vibration transmission mechanism, a power recovery mechanism, and an anti-clogging mechanism. The vibration transmission mechanism transmits the vibration of the vibration generator to the bottom screen. The power recovery mechanism recovers the vibration emitted by the vibration generator and converts it into compressed air. The anti-clogging mechanism uses the compressed air to generate air bubbles on the inner wall of the side screen, blowing seeds blocked in the screen holes out of the enclosed area, thereby reducing seed blockage in the screen holes of the side screen.

[0006] Preferably, a frame is provided at the top of the barrel, the drive motor is mounted on the frame, the drive motor is used to drive the drive shaft to rotate, and the rotation of the drive shaft will drive the stirring rod to rotate. The mounting shaft is located at the bottom of the impurity removal chamber.

[0007] Preferably, the moving mechanism includes a moving push rod connected to the mounting shaft, and the moving push rod is used to drive the side screen to move.

[0008] Preferably, the flexible screen is made of rubber, and the enclosing mechanism is provided at both ends of the flexible screen. The enclosing mechanism is located on the side screen and includes a rotating shaft, a rotating roller and a torsion spring. The rotating shaft is located on the side screen, and the two ends of the torsion spring are respectively connected to the rotating shaft and the rotating roller. The flexible screen is fixedly connected to the rotating rollers located on different side screens.

[0009] Preferably, the water circulation mechanism includes a circulation pump, a connecting pipe, and nozzles. The circulation pump is mounted on the frame. The two ends of the circulation pipe are respectively connected to the liquid inlet end of the circulation pipe and the impurity removal chamber. The liquid outlet end of the circulation pump is connected to the connecting pipe. The connecting pipe is connected to a plurality of nozzles, and the plurality of nozzles are arranged around the mounting shaft.

[0010] Preferably, the filtration mechanism includes a filter screen, which is disposed at the connection between the circulation pipe and the impurity removal chamber.

[0011] Preferably, the vibration transmission mechanism includes a telescopic transmission rod and a rebound spring. The two ends of the telescopic transmission rod are respectively connected to the bottom of the impurity removal chamber and the bottom screen, and the rebound spring is disposed inside the telescopic transmission rod.

[0012] Preferably, the mounting shaft has a piston chamber inside, and the power recovery mechanism includes a bonding block, a power recovery rod, a return spring, and a cylinder. The power recovery rod is movably inserted into the piston chamber, the bonding block is connected to the power recovery rod, and the two ends of the return spring are respectively connected to the power recovery rod and the piston chamber. When the power recovery rod reciprocates in the piston chamber, air is compressed into the cylinder.

[0013] Preferably, the anti-clogging mechanism includes an electromagnetic pressure reducing valve, an air pipe, and a foaming block. The electromagnetic pressure reducing valve is connected to the output end of the cylinder, and the output end of the air pipe is connected to a plurality of foaming blocks. The foaming blocks are disposed in the sieve holes of the side screen.

[0014] On the other hand, a method for removing impurities is provided for using the above-mentioned beet seed impurity removal device, comprising the following steps: A. When using, place the seeds in the area enclosed by the side sieve and the flexible sieve; B. Start the drive motor to make the stirring rod agitate the water flow inside the enclosed area; C. Start the vibration generator to use water flow to vibrate and separate the seeds and impurities in the impurity removal chamber; D. The water circulation mechanism drives the water flow to circulate on both sides of the side screen, thereby driving the seeds through the side screen; E. The moving mechanism drives multiple side screens to reciprocate synchronously, enhancing the turbulence of the water flow and promoting the passage of seeds through the side screens. F, The vibration transmission mechanism transmits the vibration of the vibration generator to the bottom screen, and the vibration promotes the seeds to pass through the bottom screen; G. The power recovery mechanism recovers the vibration generated by the vibration generator and generates air bubbles on the inner wall of the side screen through the anti-clogging mechanism to blow the seeds blocked in the screen holes out of the enclosed area, thereby reducing the clogging of seeds in the screen holes of the side screen.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: This application utilizes a circulating pump to uniformly spray seeds at the nozzle, causing the seeds to roll with the water flow within the enclosed area. Simultaneously, impurities are effectively isolated through the side screen. A vibration transmission mechanism causes the bottom screen to vibrate slightly, further promoting uniform seed distribution and ensuring effective sieving. A power recovery mechanism converts vibration energy into compressed air, which is both energy-saving and environmentally friendly. The anti-clogging mechanism generates air bubbles that effectively guide seed movement, reducing screen clogging and improving sieving efficiency. A hydraulic push rod drives the side screen to move flexibly, adapting to different sieving needs. The rubber material of the flexible screen and the enclosed mechanism design ensure the screen's durability and filtration accuracy. This application utilizes multiple methods—including a stirring assembly, a circulating guide assembly, and a vibrating screening assembly—to sieve seeds within the enclosed area, significantly reducing labor costs and achieving automated, intelligent, and highly efficient operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the axial view structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the side screen and the flexible screen of the present invention; Figure 4 This is a schematic diagram of the connection structure between the mounting shaft, the movable push rod, and the side screen of the present invention. Figure 5 This is a schematic diagram of the connection structure between the rotating shaft and the side screen of the present invention.

[0017] In the diagram: 1. Machine barrel, 2. Impurity removal cylinder, 3. Vibration generator, 4. Drive motor, 5. Drive shaft, 6. Stirring rod, 7. Mounting shaft, 8. Bottom screen, 9. Side screen, 10. Flexible screen, 11. Moving push rod, 12. Rotating shaft, 13. Rotating roller, 14. Torsion spring, 15. Circulation pump, 16. Connecting pipe, 17. Nozzle, 18. Filter screen, 19. Circulation pipe, 20. Telescopic transmission rod, 21. Rebound spring, 22. Piston chamber, 23. Adhesive block, 24. Power recovery rod, 25. Return spring, 26. Cylinder, 27. Electromagnetic pressure reducing valve, 28. Air pipe, 29. Bubble block, 101. Frame, 201. Impurity removal chamber. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-5 The present invention provides a technical solution: A beet seed impurity removal device, as per the instruction manual. Figure 1 As shown, it includes: The machine barrel 1 is used to install the impurity removal cylinder 2 and the vibration generator 3. The impurity removal cylinder 2 is provided inside the machine barrel 1. The impurity removal cylinder 2 is provided with an impurity removal chamber 201. The vibration generator 3 is provided at the bottom of the machine barrel 1. The vibration generator 3 is used to drive the impurity removal cylinder 2 to vibrate. A stirring assembly is provided in the impurity removal chamber 201. The stirring assembly includes a drive motor 4, a drive shaft 5, and a stirring rod 6. The output end of the drive motor 4 is connected to the drive shaft 5. The drive motor 4 is used to drive the drive shaft 5 to rotate. The stirring rod 6 is provided in the drive shaft 5. The stirring rod 6 is used to rotate the water flow and seeds in the impurity removal chamber 201, thereby stirring and separating the seeds and impurities. The dynamic enclosure assembly includes a mounting shaft 7, a bottom screen 8, side screens 9, a moving mechanism, a flexible screen 10, and an enclosure mechanism. The mounting shaft 7 is located in the impurity removal chamber 201 and is used to mount the bottom screen 8 and side screens 9. The side screens 9 are arranged around the mounting shaft 7 and are connected to the bottom screen 8 via sliders. The moving mechanism drives the side screens 9 to move radially along the mounting shaft 7. The enclosure mechanism drives the flexible screen 10 to enclose the gaps between adjacent side screens 9. The beet polished seeds with particle sizes in the range of 2.0-2.5 mm and 2.5-3.0 mm are used for pelleting (particle sizes in the above range are less than 2.0 mm). The polished sugar beet seeds with a diameter of 3.0 mm have insufficient maturity and low germination rate; while polished sugar beet seeds with a diameter greater than 3.0 mm rarely meet the national standard particle size of 3.5-4.75 mm after pelleting. For the above reasons, setting the bottom screen 8, side screen 9 and flexible screen 10 with a screen hole size of less than 3 mm can meet the usage requirements. The circulation guide assembly includes a water circulation mechanism, a circulation pipe 19, and a filtration mechanism. The water circulation mechanism is used to drive the water flow through the circulation pipe 19 to circulate on both sides of the side screen 9, thereby driving the seeds to move radially along the mounting shaft 7. The filtration mechanism is used to filter the water flow entering the circulation pipe 19. The vibrating screening assembly includes a vibration transmission mechanism, a power recovery mechanism, and an anti-clogging mechanism. The vibration transmission mechanism transmits the vibration of the vibration generator 3 to the bottom screen 8. The power recovery mechanism recovers the vibration emitted by the vibration generator 3 and converts it into compressed air. The anti-clogging mechanism uses compressed air to generate bubbles on the inner wall of the side screen 9, blowing the seeds blocked in the screen holes out of the enclosed area, thereby reducing the blockage of seeds in the screen holes of the side screen 9.

[0020] A frame 101 is provided at the top of the barrel 1. The frame 101 is used to install the drive motor 4 and the circulation pump 15. The drive motor 4 is installed on the frame 101 and is used to drive the drive shaft 5 to rotate. When the drive shaft 5 rotates, it will drive the stirring rod 6 to rotate, thereby stirring the water in the impurity removal chamber 201. The mounting shaft 7 is located at the bottom of the impurity removal chamber 201. The mounting shaft 7 is connected to the barrel 1 through a connecting rod. Therefore, when the vibration generator 3 drives the impurity removal cylinder 2 to vibrate, the mounting shaft 7 will not vibrate.

[0021] The moving mechanism includes a moving push rod 11, with its two ends connected to the mounting shaft 7 and the side screen 9, respectively. The moving push rod 11 is a hydraulic push rod with waterproof function, and it is used to drive the side screen 9 to move.

[0022] The flexible screen 10 is made of rubber. Both ends of the flexible screen 10 are equipped with enclosure mechanisms located on the side screens 9. The enclosure mechanisms include a rotating shaft 12, a rotating roller 13, and a torsion spring 14. The rotating shaft 12 is located on the side screen 9 and is used to mount the rotating roller 13. The torsion spring 14 is connected at both ends to the rotating shaft 12 and the rotating roller 13, respectively. The torsion spring 14 is used to drive the rotating roller 13 to reset, thereby driving the flexible screen 10 to perform filtration. The flexible screen 10 is fixedly connected to rotating rollers 13 located on different side screens 9. In this embodiment, the bottom screen 8 and the side screens 9 both have a pore size of 3mm, which can effectively isolate impurities inside the enclosure area.

[0023] The water circulation mechanism includes a circulation pump 15, a connecting pipe 16, and nozzles 17. The circulation pump 15 is mounted on the frame 101. The two ends of the circulation pipe 19 are connected to the liquid inlet and the impurity removal chamber 201, respectively. The liquid outlet of the circulation pump 15 is connected to the connecting pipe 16. The connecting pipe 16 passes through the drive shaft 5 and connects to the mounting shaft 7. The connecting pipe 16 is a flexible hose and is connected to several nozzles 17, which are arranged around the mounting shaft 7. The design of the nozzles 17 ensures uniform water distribution, avoids excessive impact on the seeds, and ensures a gentle screening process. In addition, the nozzles 17 are adjustable in angle to adapt to the screening needs of different seeds.

[0024] The filtration mechanism includes a filter screen 18. In this embodiment, the filter screen 18 has a pore size of 1 mm. The filter screen 18 is disposed at the connection between the circulation pipe 19 and the impurity removal chamber 201. The filter screen 18 is used to filter the seeds in the water flow entering the circulation pipe 19.

[0025] The vibration transmission mechanism includes a telescopic transmission rod 20 and a rebound spring 21. The two ends of the telescopic transmission rod 20 are connected to the bottom of the impurity removal chamber 201 and the bottom screen 8, respectively. The rebound spring 21 is located inside the telescopic transmission rod 20. The rebound spring 21 efficiently transmits the vibration to the bottom screen 8 through the telescopic transmission rod 20, ensuring the screening effect.

[0026] The mounting shaft 7 has a piston chamber 22 inside, which is used to cooperate with the power recovery rod 24 to continuously input air into the cylinder 26. The power recovery mechanism includes a contact block 23, a power recovery rod 24, a return spring 25, and a cylinder 26. The power recovery rod 24 is movably inserted into the piston chamber 22, the contact block 23 is connected to the power recovery rod 24, and the two ends of the return spring 25 are respectively connected to the power recovery rod 24 and the piston chamber 22. When the power recovery rod 24 reciprocates in the piston chamber 22, the air is compressed into the cylinder 26.

[0027] The anti-clogging mechanism includes an electromagnetic pressure reducing valve 27, an air pipe 28, and a bubbler blocks 29. The electromagnetic pressure reducing valve 27 is connected to the output end of the cylinder 26. The accompanying drawings only show the connection positions of the air pipe 28 and the electromagnetic pressure reducing valve 27. It should be noted that the output end of the air pipe 28 is connected to several bubbler blocks 29, which are disposed in the sieve holes of the side screen 9. The airflow passing through the bubbler blocks 29 generates tiny bubbles that move outwards from the enclosed area within the sieve holes of the side screen 9, helping to prevent clogging and maintain a smooth screening process. The entire screening device has a compact design, saving space and facilitating maintenance and cleaning.

[0028] Working principle: During use, seeds are placed in the area enclosed by the side screen 9 and the flexible screen 10, and water is injected into the impurity removal chamber 201. The circulating pump 15 sprays the water evenly at the nozzle 17, causing the seeds to roll with the water flow within the enclosed area. Simultaneously, impurities are effectively isolated within the enclosed area by the side screen 9. The vibration generator 3 drives the bottom screen 8 to vibrate slightly through the transmission rod 20 and the rebound spring 21, further promoting uniform seed distribution and ensuring effective sieving. When the vibration generator 3 is in use, the adhesive block 23 drives the power recovery rod 24 to reciprocate within the piston chamber 22, continuously pressurizing air into the cylinder 26. The intermittent opening of the electromagnetic pressure reducing valve 27 inputs airflow into the bubbling block 29, causing the air to turn into tiny bubbles that blow the seeds clogging the screen holes out of the enclosed area, effectively preventing screen clogging.

[0029] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A beet seed impurity removal device, characterized in that, include: The machine barrel has a cleaning cylinder inside, the cleaning cylinder has a cleaning chamber, and a vibration generator is installed at the bottom of the machine barrel to drive the cleaning cylinder to vibrate. A stirring assembly is disposed in the impurity removal chamber. The stirring assembly includes a drive motor, a drive shaft, and a stirring rod. The drive motor is used to drive the drive shaft to rotate, and the stirring rod is disposed on the drive shaft to stir the seeds in the impurity removal chamber. A dynamic enclosure assembly includes a mounting shaft, a bottom screen, side screens, a moving mechanism, a flexible screen, and an enclosure mechanism. The mounting shaft is disposed in the impurity removal chamber, the side screens are arranged around the mounting shaft, the moving mechanism is used to drive the side screens to move radially along the mounting shaft, and the enclosure mechanism is used to drive the flexible screen to enclose the gap between adjacent side screens. The flexible screen is provided with the enclosure mechanism at both ends. The enclosure mechanism is provided on the side screen. The enclosure mechanism includes a rotating shaft, a rotating roller and a torsion spring. The rotating shaft is provided on the side screen. The two ends of the torsion spring are respectively connected to the rotating shaft and the rotating roller. The flexible screen is fixedly connected with the rotating rollers provided on different side screens. A circulation guide assembly includes a water circulation mechanism, a circulation pipe, and a filtration mechanism. The water circulation mechanism drives water to circulate through the circulation pipe on both sides of the side screen, thereby driving the seeds to move radially along the mounting shaft. The filtration mechanism filters the water entering the circulation pipe. A vibrating sieving assembly includes a vibration transmission mechanism, a power recovery mechanism, and an anti-clogging mechanism. The vibration transmission mechanism transmits the vibration of the vibration generator to the bottom screen. The power recovery mechanism recovers the vibration emitted by the vibration generator and converts it into compressed air. The anti-clogging mechanism uses the compressed air to generate air bubbles on the inner wall of the side screen, blowing seeds blocked in the screen holes out of the enclosed area, thereby reducing seed blockage in the screen holes of the side screen. The mounting shaft has a piston chamber inside. The power recovery mechanism includes a contact block, a power recovery rod, a return spring, and a cylinder. The power recovery rod is movably inserted into the piston chamber. The contact block is connected to the power recovery rod. The two ends of the return spring are respectively connected to the power recovery rod and the piston chamber. When the power recovery rod reciprocates in the piston chamber, air is compressed into the cylinder. The anti-clogging mechanism includes an electromagnetic pressure reducing valve, an air pipe, and a bubbler. The electromagnetic pressure reducing valve is connected to the output end of the cylinder, and the output end of the air pipe is connected to several bubblers. The bubblers are disposed in the sieve holes of the side screen. When the airflow passes through the bubblers in the sieve holes of the side screen, it generates tiny bubbles that move outward toward the outer edge of the enclosed area.

2. The beet seed impurity removal device according to claim 1, characterized in that: A frame is provided at the top of the barrel, and the drive motor is mounted on the frame. The drive motor is used to drive the drive shaft to rotate. When the drive shaft rotates, it will drive the stirring rod to rotate. The mounting shaft is located at the bottom of the impurity removal chamber.

3. The beet seed impurity removal device according to claim 1, characterized in that: The moving mechanism includes a moving push rod connected to the mounting shaft, and the moving push rod is used to drive the side screen to move.

4. The beet seed impurity removal device according to claim 2, characterized in that: The flexible screen is made of rubber.

5. The beet seed impurity removal device according to claim 2, characterized in that: The water circulation mechanism includes a circulation pump, a connecting pipe, and nozzles. The circulation pump is mounted on the frame. The two ends of the circulation pipe are respectively connected to the liquid inlet end of the circulation pipe and the impurity removal chamber. The liquid outlet end of the circulation pump is connected to the connecting pipe. The connecting pipe is connected to a plurality of nozzles, and the plurality of nozzles are arranged around the mounting shaft.

6. The beet seed impurity removal device according to claim 5, characterized in that: The filtration mechanism includes a filter screen, which is disposed at the connection between the circulation pipe and the impurity removal chamber.

7. The beet seed impurity removal device according to claim 1, characterized in that: The vibration transmission mechanism includes a telescopic transmission rod and a rebound spring. The two ends of the telescopic transmission rod are respectively connected to the bottom of the impurity removal chamber and the bottom screen, and the rebound spring is disposed inside the telescopic transmission rod.

8. A method for removing impurities, based on the beet seed impurity removal device according to any one of claims 1 to 7, characterized in that, Includes the following steps: A. When using, place the seeds in the area enclosed by the side sieve and the flexible sieve; B. Start the drive motor to make the stirring rod agitate the water flow inside the enclosed area; C. Start the vibration generator to use water flow to vibrate and separate the seeds and impurities in the impurity removal chamber; D. The water circulation mechanism drives the water flow to circulate on both sides of the side screen, thereby driving the seeds through the side screen; E. The moving mechanism drives multiple side screens to reciprocate synchronously, enhancing the turbulence of the water flow and promoting the passage of seeds through the side screens. F, The vibration transmission mechanism transmits the vibration of the vibration generator to the bottom screen, and the vibration promotes the seeds to pass through the bottom screen; G. The power recovery mechanism recovers the vibration generated by the vibration generator and generates air bubbles on the inner wall of the side screen through the anti-clogging mechanism to blow the seeds blocked in the screen holes out of the enclosed area, thereby reducing the clogging of seeds in the screen holes of the side screen.

Images