A wind-separation impurity removal device for seed processing

Abstract

This utility model relates to an air-separation and impurity removal device for seed processing, comprising a housing. A feed inlet is provided on the housing. A rotating component is located at one end of the feed inlet near the housing. A first air-separation component is disposed inside the housing, near the rotating component. A screening component is also disposed inside the housing. The screening component includes several screening plates fixed to the inner wall of the housing and connecting opposite ends of the inner wall, and screening steps located on the screening plates. This utility model, through the combined arrangement of the screening component and the first air-separation component, achieves the function of separating seeds of different densities and gravities, as well as impurities, through air separation. It not only removes impurities from seeds but also refines them, creating a gradient collection process for the seeds through the airflow of the first air-separation component.

Description

Technical Field

[0001] This utility model relates to the field of seed impurity removal technology, and in particular to a wind-separation impurity removal device for seed processing. Background Technology

[0002] Removing impurities is a crucial step in seed processing. Traditional methods rely primarily on manual screening or simple mechanical screening devices, both of which have several shortcomings. Manual screening is inefficient, labor-intensive, and lacks precision, easily resulting in missed or incorrect screenings and inconsistent seed quality. While simple mechanical screening devices, such as sieves, improve efficiency to some extent, they are not ideal for separating seeds of different densities and sizes, as well as impurities. They often only perform preliminary screening of larger particles, failing to effectively separate finer impurities or those with similar densities to the seeds, thus failing to meet the demands of high-quality seed processing. While wind-powered impurity removal is currently the main method for seed impurity removal, it only addresses dust removal and requires additional steps for seed screening.

[0003] Chinese patent document CN214812685U discloses a seed air-separation and impurity removal machine, comprising a shell open at both ends. One end of the shell is equipped with a fan blade and a drive device for rotating the fan blade. The other end is equipped with a feed inlet and a first slag outlet. The first slag outlet is located below the feed inlet. A hopper is provided at the feed inlet. A discharge trough is provided at the discharge end of the shell. The free end of the discharge trough is inclined downwards. A through hole is provided at the bottom of the discharge trough. A filter screen is installed in the through hole. Air is blown into the shell from one end to remove stones, fine sand, and plant stems and leaves through air separation. The drawback of this patent is that it is insufficient in the screening and collection of seeds, failing to achieve precise screening and classification of seeds, resulting in inconsistent seed quality after screening, which affects the subsequent processing and use of the seeds.

[0004] Therefore, there is a need for an air-separation and impurity removal device for seed processing that can effectively solve the above problems, so as to improve the efficiency and quality of seed impurity removal, achieve precise screening and classification of seeds, and meet the needs of high-quality seed processing.

[0005] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides an air-separation and impurity removal device for seed processing, comprising a housing. A feed inlet is provided on the housing. A rotating component is located at one end of the feed inlet near the housing. A first air-separation component is disposed within the housing, near the rotating component. A screening component is also disposed within the housing. The screening component includes several screening plates fixed to the inner wall of the housing and connecting opposite ends of the inner wall, and screening steps located on the screening plates. This invention, through the combined arrangement of the screening component and the first air-separation component, achieves the function of separating seeds of different densities and gravities, as well as impurities, through air separation. It not only removes impurities from seeds but also refines them, achieving a gradient collection process of seeds through the airflow of the first air-separation component.

[0007] According to a preferred embodiment, a plurality of screening plates are arranged at intervals along the blowing direction of the first air separation component. The screening plates are inclined towards the blowing direction of the first air separation component. The inclination of the screening plates towards the blowing direction of the first air separation component causes the seeds selected by the wind to fall along the inclined plates under the action of gravity to enter the collection chamber, while the remaining seeds and / or impurities roll upwards along the inclined screening plates under the action of the wind, thereby entering the next screening plate.

[0008] According to a preferred embodiment, a plurality of screening plates are arranged at equal vertical heights. The screening plates closer to the first air-separating component are located at the lower vertical end of the housing. The screening plates farther from the first air-separating component are located at the upper vertical end of the housing. The plurality of screening plates are arranged at equal vertical heights, so that the seeds are gradually blown diagonally upward by the wind, thereby forming a stepped air-separation, so that seeds of different sizes and densities are gradually screened as they move diagonally upward.

[0009] According to a preferred embodiment, the vertical tolerance between adjacent screening plates is less than the vertical height of the screening plates. A screening channel is formed between adjacent screening plates.

[0010] According to a preferred embodiment, screening steps are disposed at the vertical upper end of the screening plate. The screening steps are trapezoidal. The screening steps act as a dynamic buffer during the seed air separation process, preventing some seeds from being swept into the next screening plate due to inertia, thus improving the accuracy of seed screening.

[0011] According to a preferred embodiment, a collection chamber for collecting seeds is provided at the vertically downward end of the screening plate. Several collection chambers are arranged sequentially along the airflow direction of the first air separation component.

[0012] According to a preferred embodiment, the rotating assembly includes a rotating shaft passing through the feed inlet. A drive motor is connected to the rotating shaft. A plurality of equally spaced disintegrating components are disposed on the rotating shaft.

[0013] According to a preferred embodiment, a plurality of disintegrating components are arranged in a spirally equidistant manner along the extension direction of the rotation axis.

[0014] According to a preferred embodiment, a second air separator component is further provided inside the housing, tilted vertically upwards. The second air separator component is positioned vertically above the screening plate, away from the first air separator component. The orientation of the second air separator component is parallel to the orientation of the screening plate.

[0015] According to a preferred embodiment, the system further includes a debris removal compartment disposed on the side of the housing and located at the vertical upper end of the housing. The debris removal compartment is connected to the vertical upper end of the screening plate away from the first air separation component and communicates with the interior of the housing. Attached Figure Description

[0016] Figure 1 This is a simplified structural diagram of a preferred embodiment of the wind-separation and impurity removal device for seed processing provided by this utility model;

[0017] Figure 2 This is a simplified axonometric view of the seed processing wind-separation and impurity removal device after being cut, according to a preferred embodiment of this utility model.

[0018] Figure 3 This is a simplified front view of the seed processing wind-separation and impurity removal device according to a preferred embodiment of the present invention after being cut open.

[0019] Figure 4 This is a simplified axial side view of the seed processing wind-separation and impurity removal device according to a preferred embodiment of the present invention, after being cut open.

[0020] Figure 5 This is a simplified rear view of a preferred embodiment of the wind-separation and impurity removal device for seed processing provided by this utility model.

[0021] List of reference numerals

[0022] 100: Box body; 101: Feed inlet; 200: Rotating assembly; 201: Rotating shaft; 202: Drive motor; 203: Dispersing component; 301: First air separation assembly; 302: Second air separation assembly; 400: Screening assembly; 401: Screening plate; 402: Screening step; 403: Screening channel; 404: Collection bin; 405: Impurity removal bin. Detailed Implementation

[0023] The following is a detailed explanation with reference to the accompanying drawings.

[0024] Example 1

[0025] This utility model provides a wind-separation and impurity removal device for seed processing, such as... Figure 1As shown, the device includes a housing 100. A feed inlet 101 is provided on the housing 100. A rotating assembly 200 is located at one end of the feed inlet 101 near the housing 100. A first air-separating assembly 301 is provided inside the housing 100. The first air-separating assembly 301 is located at one end of the housing 100 near the rotating assembly 200. A screening assembly 400 is also provided inside the housing 100. The screening assembly 400 includes several screening plates 401 fixed to the inner wall of the housing 100 and connecting opposite ends of the inner wall, and screening steps 402 located on the screening plates 401. The first air-separating assembly 301 faces the several screening plates 401. The first air-separating assembly 301 can be a blower or other component that provides airflow. The first air-separating assembly 301 can agitate the seeds entering from the feed inlet 101. The rotating component 200 of this invention can initially disperse the seeds entering from the feed inlet 101, preventing them from accumulating and clogging at the feed inlet 101, thus facilitating subsequent air separation and impurity removal. Seeds containing impurities fall from the feed inlet 101 into the housing 100, and the first air separation component 301 is activated to air separate the incoming seeds. The air force blows materials of different weights along the screening plate 401, and the screening steps 402 can block some of the larger seeds, so that a batch of seeds with larger volume and density falls into the corresponding collection bin 404 below the first screening plate 401. The remaining seeds and impurities are blown to the second screening plate 401 due to their lighter weight. Since the second screening plate 401 is farther away from the first air separation component 301, the air force it receives is reduced, and the screening steps 402 of the second screening plate 401 can block some seeds of medium volume and density, so that they fall into the corresponding collection bin of the second screening plate 401. The remaining seeds and impurities, being lighter than humans, are blown to the third screening plate 401. Similarly, as the wind force further decreases, the screening steps 402 of the third screening plate 401 can block some of the smaller, less dense seeds, causing them to fall into the collection chamber corresponding to the third screening plate 401. Impurities among the seeds, due to their minimal density, continue to be blown into the subsequent impurity removal chamber 405.

[0026] Therefore, this utility model achieves the function of separating and classifying seeds and impurities of different densities and gravity through the combined arrangement of the screening component 400 and the first air separation component 301. It can not only remove impurities from the seeds, but also select the seeds carefully. The airflow of the first air separation component 301 forms a gradient collection process for the seeds.

[0027] According to a preferred embodiment, a plurality of screening plates 401 are arranged at intervals along the blowing direction of the first air separation component 301. The plurality of screening plates 401 are inclined toward the blowing direction of the first air separation component 301. Figures 2 to 4As shown, several screening plates 401 are tilted toward the blowing direction of the first wind separation component 301, so that the seeds selected by the wind fall down along the tilted plates under the action of gravity to enter the collection bin 404, and the remaining seeds and / or impurities roll upward along the tilted screening plates 401 under the action of wind, so as to enter the next screening plate 401.

[0028] According to a preferred embodiment, a plurality of screening plates 401 are arranged at equal vertical heights. The screening plates 401 closer to the first air separation component 301 are located at the lower vertical end of the housing 100. The screening plates 401 farther from the first air separation component 301 are located at the upper vertical end of the housing 100. The plurality of screening plates 401 are arranged at equal vertical heights, so that the seeds are gradually blown obliquely upward by the wind, thereby forming a stepped air separation, so that seeds of different sizes and densities are gradually screened as they move obliquely upward.

[0029] According to a preferred embodiment, the vertical tolerance of adjacent screening plates 401 is less than the vertical height of the screening plates 401. A screening channel 403 is formed between adjacent screening plates 401. The above-mentioned tolerance being less than the height is defined as follows: adjacent screening plates 401 will form an overlapping portion to form the screening channel 403. Due to the obstruction of the preceding screening plate 401, the screening channel 403 is not affected by wind force, thereby allowing seeds sliding off the screening plates 401 to be swept into the collection bin 404 through the screening channel 403.

[0030] According to a preferred embodiment, a screening step 402 is disposed at the vertical upper end of the screening plate 401. The screening step 402 is configured as a trapezoidal step. The screening step 403 serves to provide a buffer for seed air separation, preventing some seeds from entering the next screening plate 401 due to the initial velocity of the wind. Thus, the screening step 402 acts as a dynamic buffer in the seed air separation process, preventing some seeds from being swept into the next screening plate 401 under inertia, thereby improving the accuracy of seed screening.

[0031] According to a preferred embodiment, a collection chamber 404 for collecting seeds is correspondingly provided at the vertically downward end of the screening plate 401. A plurality of collection chambers 404 are arranged sequentially along the blowing direction of the first air separation component 301. The plurality of screening plates 401 correspond to a plurality of collection chambers 404, thereby enabling the collection of different selected seeds.

[0032] According to a preferred embodiment, such as Figure 5As shown, the rotating assembly 200 includes a rotating shaft 201 extending through the feed inlet 101. A drive motor 202 is connected to the rotating shaft 201. A plurality of equally spaced dispersing components 203 are arranged on the rotating shaft 201. Preferably, the dispersing components 203 are arranged in a spiral, equidistant manner along the extending direction of the rotating shaft 201. The dispersing components 203 can disperse the seeds entering from the feed inlet 101, preventing them from accumulating and clogging the feed inlet 101. Furthermore, the dispersing components 203 can disperse seeds that are stuck together, allowing each seed to separate, facilitating the subsequent air separation process. The spiral, equidistant arrangement can effectively disperse accumulated seeds, allowing them to fall sequentially from the feed inlet 101 into the housing 100.

[0033] According to a preferred embodiment, a second air separator 302 inclined vertically upwards is further provided inside the housing 100. The second air separator 302 is positioned vertically above the screening plate 401, away from the first air separator 301. The orientation of the second air separator 302 is parallel to that of the screening plate 401. The second air separator 302 serves as a supplementary air source for the second air separator 301, providing additional airflow for the air separation process of the rear screening plate 401. Furthermore, the second air separator 302 can also be used to blow impurities dispersed by the first air separator 301 directly into the impurity removal chamber 405, preventing impurities and dust inside the housing 100 from scattering in the air and allowing them to be collected in the impurity removal chamber 405.

[0034] More preferably, both the first air separation component 301 and the second air separation component 302 are provided with isolation spaces and corresponding isolation nets to prevent seeds and / or impurities from interfering with the normal operation of the first air separation component 301 and the second air separation component 302.

[0035] According to a preferred embodiment, the system further includes a dust removal chamber 405 disposed on the side of the housing 100 and located at the vertical upper end of the housing 100. The dust removal chamber 405 is connected to the vertical upper end of the screening plate 401 away from the first air separation component 301 and communicates with the interior of the housing 100.

[0036] It should be noted that each collection chamber 404 and the impurity removal chamber 405 is equipped with a door at the corresponding position of the box 100, which facilitates the operator to remove seeds or clean impurities later.

[0037] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A wind-separation impurity removal device for seed processing, comprising a housing (100), characterized in that, The housing (100) is provided with a feed inlet (101), and a rotating assembly (200) is provided at one end of the feed inlet (101) near the housing (100). A first air separation assembly (301) is provided inside the housing (100), and the first air separation assembly (301) is located at one end of the housing (100) near the rotating assembly (200). The box (100) is also provided with a screening assembly (400), which includes a plurality of screening plates (401) fixed on the inner wall of the box (100) and connected to opposite ends of the inner wall of the box (100) and screening steps (402) located on the screening plates (401). A plurality of the screening plates (401) are arranged at intervals along the blowing direction of the first air separation assembly (301), wherein, A plurality of the screening plates (401) are inclined toward the blowing direction of the first air separation component (301); The vertical heights of several of the screening plates (401) are arranged at equal intervals, wherein, The screening plate (401) near the first air separation component (301) is located at the lower vertical end of the housing (100), and the screening plate (401) away from the first air separation component (301) is located at the upper vertical end of the housing (100). The vertical tolerance of adjacent screening plates (401) is less than the vertical height of the screening plates (401), wherein, A screening channel (403) is formed between adjacent screening plates (401).

2. The air-separation and impurity removal device for seed processing according to claim 1, characterized in that, The screening step (402) is disposed at the vertical upper end of the screening plate (401), wherein, The screening step (402) is configured as a trapezoidal step.

3. The air-separation and impurity removal device for seed processing according to claim 2, characterized in that, The vertical end of the screening plate (401) is provided with a collection chamber (404) for collecting seeds, and a plurality of the collection chambers (404) are arranged in sequence along the blowing direction of the first wind separation component (301).

4. The air-separation and impurity removal device for seed processing according to claim 3, characterized in that, The rotating assembly (200) includes a rotating shaft (201) passing through the feed inlet (101), and the rotating shaft (201) is connected to a drive motor (202), wherein, The rotating shaft (201) is provided with a number of disassembled parts (203) that are evenly distributed.

5. The air-separation and impurity removal device for seed processing according to claim 4, characterized in that, Several of the disintegrating components (203) are arranged in a spiral equidistant manner along the extension direction of the rotation axis (201).

6. The air-separation and impurity removal device for seed processing according to claim 5, characterized in that, The housing (100) also contains a second air separation component (302) tilted vertically upwards. The second air separation component (302) is positioned vertically above the screening plate (401) away from the first air separation component (301). The orientation of the second air separation component (302) is parallel to the orientation of the screening plate (401).

7. The air-separation and impurity removal device for seed processing according to claim 6, characterized in that, It also includes a cleaning chamber (405) disposed on the side of the housing (100) and located at the vertical end of the housing (100), the cleaning chamber (405) being connected to the vertical end of the screening plate (401) away from the first air separation component (301) and communicating with the interior of the housing (100).

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