A seed screening device

Abstract

This invention discloses a seed screening device, belonging to the field of seed screening technology. It includes a primary screening chamber containing a first separation chamber, a second separation chamber, and a third separation chamber. These chambers are separated by a first partition. A first discharge pipe is installed at the lower end of the first separation chamber. A secondary screening chamber and a second fixing frame are located on one side of the lower ends of the second and third separation chambers. The secondary screening chamber contains a fourth and a fifth separation chamber, separated by a second partition. The fifth separation chamber includes a waste bin and a recycling bin, separated by a third partition. This invention significantly improves seed screening accuracy and yield through multi-stage screening, dynamic airflow control, and automated sorting, while reducing energy consumption and maintenance costs, making it suitable for large-scale agricultural processing applications.

Description

Technical Field

[0001] This invention belongs to the field of seed screening technology, specifically relating to a seed screening device. Background Technology

[0002] Seeds are the reproductive bodies unique to gymnosperms and angiosperms, formed from ovules through pollination and fertilization. Seeds generally consist of three parts: the seed coat, the embryo, and the endosperm. Some plants have mature seeds with only the seed coat and the embryo. Seed formation allows the young sporophyte ovules to be protected by the parent plant and to receive sufficient nutrients, much like a mammalian fetus.

[0003] In agricultural production, seed screening is a key step in ensuring seed quality, improving germination rate and crop yield. Traditional seed screening methods mainly rely on vibrating screens, air separators or gravity sorting equipment. However, these technologies generally have the following problems: single-stage screening is difficult to completely separate light impurities (such as chaff and dust) from damaged seeds, requiring repeated operations, which is time-consuming and labor-intensive; waste materials and qualified seeds need to be manually sorted or secondary processed, increasing labor costs and easily causing seed damage.

[0004] Therefore, there is an urgent need for a highly efficient, automated, and adaptable seed sorting device to achieve accurate sorting, reduce manual intervention, improve production efficiency, and solve the problems existing in the current technology.

[0005] The purpose of this invention is to provide a seed screening device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a seed screening device, comprising a primary screening chamber, wherein the primary screening chamber is provided with a first separation chamber, a second separation chamber and a third separation chamber, the first separation chamber, the second separation chamber and the third separation chamber are all separated by a first partition, and a first discharge pipe is installed at the lower end of the first separation chamber, and a secondary screening chamber and a second fixing frame are provided on one side of the lower end of the second separation chamber and the third separation chamber, wherein the secondary screening chamber is provided with a fourth separation chamber and a fifth separation chamber, the fourth separation chamber and the fifth separation chamber are separated by a second partition, and the fifth separation chamber includes a waste bin and a recycling bin, the waste bin and the recycling bin are separated by a third partition.

[0007] It should be noted in the solution that the upper end of the fourth separation chamber is fixedly connected to the lower end of the third separation chamber, and the lower end of the fourth separation chamber is fixedly connected to the second discharge pipe.

[0008] It is worth noting that a first fixed frame or a second fixed frame is fixedly connected to one side of the primary screening chamber and the secondary screening chamber, respectively. A first blower or a second blower is installed in the middle of the first fixed frame and the second fixed frame. A diversion device is installed at the output end of the first blower and the second blower. The diversion device passes through and is slidably connected to the first air inlet provided on one side of the primary screening chamber or the second air inlet provided on one side of the secondary screening chamber.

[0009] Furthermore, it should be noted that the lower end of the recovery chamber of the secondary screening chamber is provided with a discharge port, which is connected to one side of the first discharge pipe through a connecting pipe.

[0010] In a preferred embodiment, the second partition is provided with a waste trough at the lower end of one side of the waste bin, and the waste bin is provided with a triangular second guide plate at the lower end of the waste trough.

[0011] In a preferred embodiment, the lower ends of both the second and third separation chambers are fixedly connected to a first guide plate on one side of the second fixed frame.

[0012] In a preferred embodiment, a feed funnel is provided at the upper end of the primary screening bin.

[0013] In a preferred embodiment, the flow splitting device includes a housing, all of which are inverted L-shaped, and a flow splitting plate is provided inside the housing. The flow splitting plate is also inverted L-shaped and has a flow guide groove inside. A plurality of gas nozzles are provided on one side of the lower end of the flow splitting plate.

[0014] In a preferred embodiment, dust covers are installed on the outer side of the air inlets of both the first blower and the second blower.

[0015] Compared with the prior art, the seed screening device provided by this invention has at least the following beneficial effects:

[0016] (1) A blower is used in conjunction with a corresponding flow distribution device. The airflow is evenly distributed to different separation chambers through the flow guide and gas nozzle. At the same time, through the layered design of the primary screening chamber and the secondary screening chamber, combined with the separation of multiple separation chambers and partitions, the airflow direction and intensity can be optimized according to the characteristics (weight or size) of different seeds, while enhancing the separation effect of light impurities (such as chaff and dust) from the seeds, thereby improving screening efficiency and purity.

[0017] (2) By setting up a waste bin and a recycling bin in the secondary screening bin, the waste is discharged in a concentrated manner through the waste trough and the second guide plate, and the qualified seeds are returned to the first discharge pipe through the discharge port and the connecting pipe, so as to realize the automated classification and collection of waste and seeds and reduce manual intervention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front structure of this novel invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the front structure of this novel invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the primary screening chamber structure of this novel invention;

[0021] Figure 4 This is a schematic diagram of the structure of the secondary screening chamber of this novel invention;

[0022] Figure 5 This is a schematic diagram of the structure of the new diversion device.

[0023] In the diagram: 1. Primary screening chamber; 101. First separation chamber; 102. Second separation chamber; 103. Third separation chamber; 104. First partition plate; 105. First guide plate; 106. First air inlet; 2. First fixed frame; 3. First blower; 4. Secondary screening chamber; 401. Second air inlet; 402. Fourth separation chamber; 403. Fifth separation chamber; 4031. Waste bin; 4032. Recycling bin ; 404, Second partition; 405, Third partition; 406, Waste trough; 407, Second guide plate; 408, Discharge port; 5, First discharge pipe; 6, Second discharge pipe; 7, Connecting pipe; 8, Feed funnel; 9, Second fixed frame; 10, Second blower; 11, Dust cover; 12, Diverting device; 1201, Outer shell; 1202, Diverting plate; 1203, Guide channel; 1204, Gas nozzle. Detailed Implementation

[0024] The present invention will be further described below with reference to embodiments.

[0025] Please see Figure 1-5 This invention provides a seed screening device, comprising: a primary screening chamber 1, wherein the primary screening chamber 1 is provided with a first separation chamber 101, a second separation chamber 102 and a third separation chamber 103, the first separation chamber 101, the second separation chamber 102 and the third separation chamber 103 are all separated by a first partition 104, and a first discharge pipe 5 is installed at the lower end of the first separation chamber 101, and a secondary screening chamber 4 and a second fixing frame 9 are provided on one side of the lower end of the second separation chamber 102 and the third separation chamber 103, wherein the secondary screening chamber 4 is provided with a fourth separation chamber 402 and a fifth separation chamber 403, the fourth separation chamber 402 and the fifth separation chamber 403 are separated by a second partition 404, and the fifth separation chamber 403 includes a waste bin 4031 and a recycling bin 4032, the waste bin 4031 and the recycling bin 4032 are separated by a third partition 405.

[0026] Further as Figure 4As shown, it is worth noting that the upper end of the fourth separation chamber 402 is fixedly connected to the lower end of the third separation chamber 103, and the lower end of the fourth separation chamber 402 is fixedly connected to the second discharge pipe 6. Through the positional design of the fourth separation chamber 402, the third separation chamber 103 and the second discharge pipe 6, the waste of the device can be discharged in a centralized manner, automatically classified and collected, and reduced manual intervention.

[0027] Further as Figure 1 and Figure 2 As shown, it is worth noting that a first fixed frame 2 or a second fixed frame 9 is fixedly connected to one side of the primary screening chamber 1 and the secondary screening chamber 4, respectively. A first blower 3 or a second blower 10 is installed in the middle of the first fixed frame 2 and the second fixed frame 9. A diversion device 12 is installed at the output end of the first blower 3 and the second blower 10. The diversion device 12 passes through and is slidably connected to the first air inlet 106 provided on one side of the primary screening chamber 1 or the second air inlet 401 provided on one side of the secondary screening chamber 4. The first blower 3 or the second blower 10 provides power for the wind screening of seeds.

[0028] Further as Figure 4 As shown, it is worth noting that the lower end of the recovery chamber 4032 of the secondary screening chamber 4 is provided with a discharge port 408. The discharge port 408 is connected to one side of the first discharge pipe 5 through the connecting pipe 7. By connecting the discharge port 408 to the first discharge pipe 5 through the connecting pipe 7, qualified seeds can be discharged in a concentrated manner, automatically classified and collected, and reduced manual intervention.

[0029] This solution has the following working process: A blower (3 / 10) is used in conjunction with a corresponding diversion device 12. The airflow is evenly distributed to different separation chambers through the guide channel 1203 and the gas nozzle 1204. At the same time, through the layered design of the primary screening chamber 1 and the secondary screening chamber 4, combined with the separation of multiple separation chambers (101 / 102 / 103 / 402 / 403) and partitions (104 / 404 / 405), the airflow direction and intensity can be optimized according to the characteristics (weight or size) of different seeds, while enhancing the separation effect of light impurities (such as chaff and dust) from the seeds, improving screening efficiency and purity. At the same time, the secondary screening chamber 4 is equipped with a waste bin 4031 and a recycling bin 4032. Waste is discharged centrally through the waste trough 406 and the second guide plate 407. Qualified seeds are returned to the first discharge pipe 5 through the discharge port 408 and the connecting pipe 7, realizing the automated classification and collection of waste and seeds.

[0030] According to the above working process, the design of the fourth separation chamber 402, the third separation chamber 103 and the second discharge pipe 6 can enable the waste of the device to be discharged in a centralized manner, automatically classified and collected, and reduce manual intervention. The first blower 3 or the second blower 10 provides power for the wind screening of seeds. The discharge port 408 is connected to the first discharge pipe 5 through the connecting pipe 7, which can enable qualified seeds to be discharged in a centralized manner, automatically classified and collected, and reduce manual intervention.

[0031] Further as Figure 4 As shown, it is worth noting that the second partition 404 is provided with a waste trough 406 at the lower end of one side of the waste bin 4031, and the waste bin 4031 is provided with a triangular second guide plate 407 at the lower end of the waste trough 406. Through the waste trough 406 and the triangular second guide plate 407, the waste after secondary screening and the waste after primary screening can be discharged in a concentrated manner.

[0032] Further as Figure 3 As shown, it is worth noting that the lower ends of the second separation chamber 102 and the third separation chamber 103 are both fixedly connected to the first guide plate 105 on one side of the second fixed frame 9. The first guide plate 105 can restrict the position and movement trajectory of the materials in the second separation chamber 102 and the third separation chamber 103.

[0033] Further as Figure 1 and Figure 2 As shown, it is worth noting that the upper end of the primary screening chamber 1 is equipped with a feed funnel 8, which facilitates the entry of raw materials.

[0034] Further as Figure 5 As shown, it is worth noting that the diversion device 12 includes a housing 1201, which is inverted L-shaped. A diversion plate 1202 is provided inside the housing 1201. The diversion plate 1202 is also inverted L-shaped and has a guide groove 1203 inside. Several gas nozzles 1204 are provided on one side of the lower end of the diversion plate 1202. Through the diversion device 12, i.e. through the guide groove 1203 and the gas nozzles 1204, the airflow is evenly distributed to different separation chambers. The direction and intensity of the airflow can be optimized according to the characteristics, weight or size of different seeds.

[0035] Further as Figure 1 and Figure 2 As shown, it is worth noting that dust covers 11 are installed on the outside of the air inlets of both the first blower 3 and the second blower 10. The dust covers 11 protect the air inlets of the blowers and extend the service life of the equipment.

[0036] In summary: The blower (3 / 10) and corresponding flow distribution device 12, through the guide channel 1203 and gas nozzle 1204, evenly distribute the airflow to different separation chambers. Simultaneously, the layered design of the primary screening chamber 1 and the secondary screening chamber 4, combined with multiple separation chambers (101 / 102 / 103 / 402 / 403) and partitions (104 / 404 / 405), allows for flexible optimization of airflow direction and intensity based on the characteristics (weight or size) of different seeds. This enhances the separation effect of light impurities (such as chaff and dust) from the seeds, improving screening efficiency and purity. Furthermore, the secondary screening chamber 4 includes a waste bin 4031 and a recovery bin 4032. Waste is discharged through a waste trough 406 and a second guide plate 40. 7. Qualified seeds are discharged centrally. They flow back to the first discharge pipe 5 through the discharge port 408 and connecting pipe 7, realizing the automated classification and collection of waste and seeds. Through the waste trough 406 and the triangular second guide plate 407, the waste after secondary screening and the waste after primary screening can be discharged centrally. Through the first guide plate 105, the position and movement trajectory of the materials in the second separation chamber 102 and the third separation chamber 103 can be restricted. Through the feed funnel 8, the raw materials can be easily entered. Through the diversion device 12, that is, through the guide trough 1203 and the gas nozzle 1204, the airflow is evenly distributed to different separation chambers. The airflow direction and intensity can be optimized according to the characteristics, weight or size of different seeds. Through the dust cover 11, the blower air inlet is protected and the equipment life is extended.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A seed screening device, comprising a primary screening chamber (1), characterized in that: The primary screening chamber (1) is provided with a first separation chamber (101), a second separation chamber (102), and a third separation chamber (103). The first separation chamber (101), the second separation chamber (102), and the third separation chamber (103) are all separated by a first partition (104). A first discharge pipe (5) is installed at the lower end of the first separation chamber (101). A secondary screening chamber (4) and a second fixed section are provided on one side of the lower end of the second separation chamber (102) and the third separation chamber (103). The secondary screening chamber (4) is equipped with a fourth separation chamber (402) and a fifth separation chamber (403). The fourth separation chamber (402) and the fifth separation chamber (403) are separated by a second partition (404). The fifth separation chamber (403) includes a waste bin (4031) and a recycling bin (4032). The waste bin (4031) and the recycling bin (4032) are separated by a third partition (405). The upper end of the primary screening chamber (1) is equipped with a feed funnel (8).

2. The seed screening device according to claim 1, characterized in that: The upper end of the fourth separation chamber (402) is fixedly connected to the lower end of the third separation chamber (103), and the lower end of the fourth separation chamber (402) is fixedly connected to the second discharge pipe (6).

3. The seed screening device according to claim 1, characterized in that: The first-stage screening chamber (1) and the second-stage screening chamber (4) are respectively fixedly connected to one side of a first fixed frame (2) or a second fixed frame (9). A first blower (3) or a second blower (10) is installed in the middle of the first fixed frame (2) and the second fixed frame (9). A diversion device (12) is installed at the output end of the first blower (3) and the second blower (10). The diversion device (12) passes through and is slidably connected to the first air inlet (106) provided on one side of the first-stage screening chamber (1) or the second air inlet (401) provided on one side of the second-stage screening chamber (4).

4. The seed screening device according to claim 1, characterized in that: The secondary screening chamber (4) has a discharge port (408) at the lower end of the recovery chamber (4032), and the discharge port (408) is connected to one side of the first discharge pipe (5) through a connecting pipe (7).

5. The seed screening device according to claim 3, characterized in that: The second partition (404) is located at the lower end of the waste bin (4031) with a waste trough (406), and the waste bin (4031) is located at the lower end of the waste trough (406) with a triangular second guide plate (407).

6. The seed screening device according to claim 1, characterized in that: The lower ends of the second separation chamber (102) and the third separation chamber (103) are both fixedly connected to the first guide plate (105) on one side of the second fixed frame (9).

7. The seed screening device according to claim 3, characterized in that: The diversion device (12) includes a housing (1201), which is inverted L-shaped, and a diversion plate (1202) is provided inside the housing (1201). The diversion plate (1202) is inverted L-shaped, and a guide groove (1203) is provided inside the diversion plate (1202). A plurality of gas nozzles (1204) are provided on one side of the lower end of the diversion plate (1202).

8. The seed screening device according to claim 3, characterized in that: Dust covers (11) are installed on the outside of the air inlets of the first blower (3) and the second blower (10).

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