A double-tube multi-stage air separator

Abstract

The present invention relates to a double-tube multi-stage air sorter, comprising an automatic feeding device, a sorting device, a conveying device and a collecting device; the automatic feeding device comprises a frame, a seed box and a seeding device for driving the seeds in the seed box to be discharged quantitatively; the sorting device comprises a blower, a horizontal air duct and a vertical air duct; a plurality of groups of vertical air ducts are arranged in parallel and interconnected; the collecting device is respectively arranged at the bottom of each group of vertical air ducts; a diverter is arranged at the outlet of the blower, and the plurality of outlets of the diverter are respectively connected to the lower ends of the plurality of groups of vertical air ducts through a plurality of groups of horizontal air ducts; the outlet of the diverter is connected to the vertical air duct located on the front side through a seed guide tube; the outlet of the seeding device is connected to the inner cavity of the seed guide tube. The double-tube multi-stage air sorter of the present invention can realize automatic quantitative seed feeding and multi-stage seed sorting; and has the advantages of simple structure and small space occupation.

Description

Technical Field

[0001] The invention relates to a seed air selection device, in particular to a double-tube multi-stage air selection device. Background Art

[0002] The main working principle of wind selection breeding is to use the significant differences in aerodynamic properties of seeds with different fullness (weight) to screen out seeds with different fullness levels.

[0003] With the rapid development of agricultural science, especially crop breeding, the requirements for the precision of seed material properties are getting higher and higher, and the demand for seeds is also increasing. Conventional manual seed selection is far from meeting the needs of production research. It is necessary to use high-precision and highly automated wind selectors to screen out seeds of different levels to meet different production research needs.

[0004] The existing wind separators generally have the following disadvantages:

[0005] 1. The seed inlet cannot automatically and quantitatively deliver seeds into the air duct, which causes the seed materials to easily accumulate in the screening tube, thus affecting the working efficiency and grading quality of the air selector;

[0006] 2. The seeds entering the air separation tube cannot be sorted in multiple stages, resulting in low sorting accuracy;

[0007] 3. The existing wind selector has a complex structure and occupies a large space. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a double-tube multi-stage air sorting instrument, which can realize automatic quantitative seed delivery and multi-stage sorting of seeds; in addition, the double-tube multi-stage air sorting instrument of the present invention has the advantages of simple and compact structure and small space occupation.

[0009] The technical solution of the present invention to solve the above technical problems is:

[0010] A double-tube multi-stage air sorter includes an automatic feeding device for feeding seeds, a sorting device for multi-stage sorting of seeds, a conveying device for conveying the seeds fed by the automatic feeding device to the sorting device, and a collecting device for separately collecting different types of seeds sorted by the sorting device, wherein:

[0011] The automatic feeding device comprises a frame, a seed box arranged on the frame, and a seed metering device for driving the seeds in the seed box to be quantitatively discharged;

[0012] The sorting device includes a blower, a horizontal air duct and a vertical air duct, wherein the vertical air ducts are in multiple groups, the multiple groups of vertical air ducts are arranged in parallel and interconnected; the collecting devices are respectively arranged at the bottom of each group of vertical air ducts; a diverter is arranged at the outlet of the blower, and the multiple outlets of the diverter are respectively connected to the lower ends of the multiple groups of vertical air ducts through the multiple groups of horizontal air ducts, and each group of horizontal air ducts is provided with an adjusting component for controlling the wind force in the horizontal air duct; a seed guide pipe is connected between the outlet of the diverter and the vertical air duct on the head side, wherein one end of the seed guide pipe is connected to the air outlet of the diverter, and the other end is connected to the vertical air duct on the head side; the outlet of the seed metering device is connected to the seed guide pipe; the blower and the seed guide pipe also constitute the conveying device.

[0013] Preferably, the regulating component is a solenoid valve.

[0014] Preferably, the vertical air ducts are in two groups, and correspondingly, the horizontal air ducts are also in two groups.

[0015] Preferably, the diameter of the seed guide pipe is smaller than the diameters of the horizontal air duct and the vertical air duct.

[0016] Preferably, the air inlet of the vertical air duct is arranged on the lower left side of the vertical air duct; the seed outlet of the seed guide tube is arranged on the lower left side of the vertical air duct located on the head side, and is located above the air inlet of the vertical air duct; a first seed outlet is arranged at the upper right corner of the vertical air duct, and the first seed outlet is connected with the adjacent vertical air duct; a second seed outlet is arranged at the bottom of the vertical air duct, and the collecting device is arranged at the second seed outlet.

[0017] Preferably, the second seed outlet is funnel-shaped, and a plurality of groups of ventilation holes arranged in a circumferential pattern are provided at the bottom of the vertical air duct on the outer side of the second seed outlet, and the ventilation holes are connected to the air outlet of the horizontal air duct.

[0018] Preferably, the seed box is an inclined warehouse structure that is larger at the top and smaller at the bottom.

[0019] Preferably, the first seed outlet of the vertical air duct is connected to the seed inlet of another group of vertical air ducts through a drainage component.

[0020] Preferably, a weighing sensor is provided at the bottom of the seed box, and an embedded controller is used to collect data from the weighing sensor in real time to obtain the quality of the seeds in the current seed box and display it in real time on a user interaction interface.

[0021] Preferably, the embedded controller controls the feeding amount of the automatic quantitative input sorting device according to the quality of the current seeds; when the embedded controller detects that there are still seeds in the seed box, it controls the seed meter to continuously feed the seeds and turns on the blower at the same time; when the embedded controller detects that the seeds in the seed box have been emptied, it automatically turns off the seed meter and the blower to enter the standby mode, and sends out a prompt sound to remind the user that the seed sorting process is completed.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The automatic feeding device in the double-tube multi-stage air selector of the present invention can automatically realize the quantitative feeding of seeds.

[0024] 2. The air separation device in the double-tube multi-stage air separation instrument of the present invention includes multiple groups of vertical air ducts. By sending screening gas into the vertical air ducts through a blower, the seeds in the vertical air ducts can be screened; since the collecting device is arranged at the bottom of the vertical air ducts, the seeds with larger mass will fall downward into the collecting device; and the seeds with smaller mass will enter the next group of vertical air ducts and be air separated again; in the above manner, multi-stage sorting of seeds can be achieved.

[0025] 3. The double-tube multi-stage air sorting instrument of the present invention is provided with an adjustment component on the horizontal air duct for controlling the wind force in the horizontal air duct so that the wind pressure of the screening airflow in each group of vertical air ducts is different, thereby realizing the sorting of seeds of different qualities.

[0026] 4. The double-tube multi-stage air separator of the present invention has the advantages of simple and compact structure, small footprint, low manufacturing cost, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the double-tube multi-stage air separator of the present invention.

[0028] Figure 2 This is a simplified structural diagram of the second outlet at the bottom of the vertical air duct.

[0029] Figure 3 This is the working principle diagram of the second outlet at the bottom of the vertical air duct.

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the automatic feeding device.

[0031] Figure 5 This is a simplified structural diagram of the drainage component in the sorting device.

[0032] Among them: 1-blower, 2-seed guide tube, 3-automatic feeding device, 4-first sorting air duct, 5-second sorting air duct, 6-fixed platform, 7-diverter, 8-horizontal air duct, 9-solenoid valve, 10-collecting bottle, 11-sorting device, 12-second seed outlet, 13-seed box, 14-stepping motor, 15-seeder, 16-seed outlet tube, 17-drainage component. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0034] See also Figure 1-Figure 5 The double-tube multi-stage air sorter of the present invention includes an automatic feeding device 3 for feeding seeds, a sorting device 11 for multi-stage sorting of seeds, a conveying device for conveying the seeds fed by the automatic feeding device 3 to the sorting device 11, and a collecting device (i.e., a collecting bottle 10) for separately collecting different types of seeds sorted by the sorting device 11.

[0035] See also Figure 1-Figure 5 The automatic feeding device 3 is composed of a seed meter 15, a seed box 13, a stepper motor 14, a weighing sensor and an embedded controller, wherein the seed box 13 is an inclined warehouse structure, and the stepper motor 14 controls the rotor speed of the seed meter 15 to realize the quantitative feeding of the automatic feeding device 3; the embedded controller collects the weighing sensor data installed at the bottom of the seed box 13 to obtain the mass of the seeds put in. When it is detected that there are still seed materials in the seed box 13, the embedded controller will control the stepper motor 14 to rotate to continuously feed the seeds, and at the same time turn on the sorting duct fan (i.e., blower 1). When it is detected that the seeds in the seed box 13 have been emptied, the stepper motor 14 is automatically turned off, the sorting duct fan (i.e., blower 1) is turned off, and the standby mode is entered to realize unmanned intelligent operation with a high degree of automation.

[0036] See also Figure 1-Figure 5The sorting device 11 includes a blower 1, a horizontal air duct 8 and a vertical air duct, wherein the blower 1 is arranged on a fixed platform 6; the vertical air ducts are multiple groups, and the multiple groups of vertical air ducts are arranged in parallel and connected to each other; the collecting device (such as a collecting bottle 10) is respectively arranged at the bottom of each group of vertical air ducts; a diverter 7 is arranged at the outlet of the blower 1, and the multiple outlets of the diverter 7 are connected to the lower ends of the multiple groups of vertical air ducts through the multiple groups of horizontal air ducts 8, and each group of horizontal air ducts 8 is provided with a device for controlling the horizontal air duct 8 The wind force regulating component is an electromagnetic valve 9, and the flow rate of the screening airflow entering the sorting device 11 is controlled by controlling the opening size of the electromagnetic valve 9; the blower 1 generates a primary screening airflow and a secondary screening airflow through the control of the diverter 7 and the electromagnetic valve 9. The seeds move upward along the vertical air duct under the action of the screening airflow in the vertical air duct. During the movement, they are trapped in the collecting device at the bottom of the vertical air ducts of different grades due to their different aerodynamic characteristics, thereby completing the grading work.

[0037] See also Figure 1-Figure 5 A seed guide pipe 2 is connected between the outlet of the diverter 7 and the vertical air duct (i.e., the first vertical air duct 4) located on the head side, wherein one end of the seed guide pipe 2 is connected to the air outlet of the diverter 7, and the other end is connected to the vertical air duct (i.e., the first vertical air duct 4) located on the head side; the outlet of the seed metering device 15 is connected to the seed guide pipe 2; the blower 1 and the seed guide pipe 2 also constitute the conveying device.

[0038] In this embodiment, the vertical air ducts are divided into two groups, namely a first vertical air duct 4 and a second vertical air duct 5 , and correspondingly, the horizontal air ducts 8 are also divided into two groups.

[0039] See also Figure 1-Figure 5 The diameter of the seed guide tube 2 is smaller than the diameters of the horizontal air duct 8 and the vertical air duct, so that the gas pressure in the seed guide tube 2 is greater than the gas pressure in the horizontal air duct 8.

[0040] See also Figure 1-Figure 5The air inlet of the vertical air duct is arranged at the lower left side of the vertical air duct; the seed outlet of the seed guide tube 2 is arranged at the lower left side of the vertical air duct located on the head side, and is located above the air inlet of the vertical air duct; a first seed outlet is arranged at the upper right corner of the vertical air duct, and the first seed outlet is connected to the adjacent vertical air duct; a second seed outlet 12 is arranged at the bottom of the vertical air duct, and the collecting device is arranged at the second seed outlet 12, wherein the second seed outlet 12 is funnel-shaped, and the vertical air duct A plurality of groups of ventilation holes arranged in a circle are provided at the bottom outside the second seed outlet 12, and the ventilation holes are connected with the air outlet of the horizontal air duct 8. Through the above arrangement, seeds with larger mass fall to the second seed outlet 12 after being screened, and the screened airflow continues to blow upward through the ventilation holes around, and the seeds fall into the collecting bottle 10 through the hollow inclined structure in the funnel-shaped second seed outlet 12, thereby preventing the seeds from accumulating at the bottom of the vertical air duct when falling, thereby affecting the air selection accuracy.

[0041] See also Figure 1-Figure 5 The first seed outlet of the first vertical air duct 4 and the seed inlet of the second vertical air duct 5 are connected through the drainage component 17; when the seeds are screened and graded once in the first vertical air duct 4, the heavier seeds fall downward along the first vertical air duct 4 to the corresponding collecting bottle 10, and the remaining seeds with moderate mass and lighter mass continue to move upward with the screening airflow until they come into contact with the top, and then sink through the drainage component 17 to enter the second vertical air duct 5 for a second screening and grading, so as to improve the grading accuracy.

[0042] See also Figure 1-Figure 5 The working principle of the double-tube multi-stage air separator of the present invention is:

[0043] The seed mixture that needs to be screened and graded is stored in the seed box 13. The seed metering device 15 can realize automatic quantitative feeding of seeds into the first vertical air duct 4. The flow rate of the screening airflow entering the first vertical air duct 4 and the second vertical air duct 5 can be controlled by adjusting the opening size of the solenoid valve 9. After completing one screening and grading in the first vertical air duct 4, the heavier seeds fall downward along the first vertical air duct 4 to the corresponding collecting bottle 10, and the remaining medium-quality and light-quality seed materials continue to move upward with the screening airflow until they come into contact with the top of the first vertical air duct 4, and then enter the second vertical air duct 5 through the drainage component 17 for a second screening and grading. Due to the differences in the aerodynamic characteristics of seeds of different weights, the seeds of medium quality fall along the second vertical air duct 5 to the corresponding collecting bottle 10, and the lighter objects move upward with the screening airflow until they come into contact with the top of the second vertical air duct 5, and then are discharged from the second vertical air duct 5 from the first seed outlet on the right side through the drainage component 17, thereby completing the seed sorting and collection work.

[0044] During this process, a weighing sensor is provided at the bottom of the seed box 13, and an embedded controller is used to collect data from the weighing sensor in real time to obtain the seed quality of the current seed box 13 and display it in real time on the user interaction interface; the embedded controller controls the feeding amount of the automatic quantitative input sorting device 11 according to the current seed quality; when the embedded controller detects that there are still seeds in the seed box 13, it controls the seed meter 15 to continue working to continuously feed seeds, and turns on the blower 1 at the same time; when the embedded controller detects that the seeds in the seed box 13 have been emptied, it automatically turns off the seed meter 15 and the blower 1 to enter the standby mode, and issues a prompt sound to remind the user that the seed sorting process is completed.

[0045] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A double-tube multi-stage air separator, characterized in that: The invention comprises an automatic feeding device for feeding seeds, a sorting device for multi-stage sorting of seeds, a conveying device for conveying the seeds fed by the automatic feeding device to the sorting device, and a collecting device for separately collecting different types of seeds sorted by the sorting device, wherein: The automatic feeding device comprises a frame, a seed box arranged on the frame, and a seed metering device for driving the seeds in the seed box to be quantitatively discharged; The sorting device comprises a blower, a horizontal air duct and a vertical air duct, wherein the vertical air ducts are in multiple groups, the multiple groups of vertical air ducts are arranged in parallel and are interconnected; the collecting devices are respectively arranged at the bottom of each group of vertical air ducts; a diverter is arranged at the outlet of the blower, and the multiple outlets of the diverter are respectively connected to the lower ends of the multiple groups of vertical air ducts through the multiple groups of horizontal air ducts, and each group of horizontal air ducts is provided with an adjusting component for controlling the wind force in the horizontal air duct; a seed guide pipe is connected between the outlet of the diverter and the vertical air duct on the head side, wherein one end of the seed guide pipe is connected to the air outlet of the diverter, and the other end is connected to the vertical air duct on the head side; the outlet of the seed metering device is connected to the seed guide pipe; the blower and the seed guide pipe also constitute the conveying device; The air inlet of the vertical air duct is arranged at the lower left side of the vertical air duct; the seed outlet of the seed guide tube is arranged at the lower left side of the vertical air duct located at the head side, and is located above the air inlet of the vertical air duct; a first seed outlet is arranged at the upper right corner of the vertical air duct, and the first seed outlet is connected to the adjacent vertical air duct; a second seed outlet is arranged at the bottom of the vertical air duct, and the collecting device is arranged at the second seed outlet; The second seed outlet is funnel-shaped, and the bottom of the vertical air duct is provided with a plurality of groups of ventilation holes arranged in a circumference on the outside of the second seed outlet, and the ventilation holes are connected with the air outlet of the horizontal air duct; The first seed outlet of the vertical air duct is connected to the seed inlet of another group of vertical air ducts through a drainage component; A weighing sensor is provided at the bottom of the seed box, and an embedded controller is used to collect data from the weighing sensor in real time to obtain the quality of the seeds in the current seed box and display it in real time on the user interaction interface; The embedded controller controls the feeding amount of the automatic quantitative input sorting device according to the quality of the current seeds; when the embedded controller detects that there are still seeds in the seed box, it controls the seed meter to continue to feed the seeds and turns on the blower at the same time; when the embedded controller detects that the seeds in the seed box have been emptied, it automatically turns off the seed meter and the blower to enter the standby mode, and emits a prompt sound to remind the user that the seed sorting process is completed.

2. The double-tube multi-stage air separator according to claim 1, characterized in that: The regulating component is a solenoid valve.

3. The double-tube multi-stage air separator according to claim 1, characterized in that: There are two groups of vertical air ducts, and correspondingly, there are also two groups of horizontal air ducts.

4. The double-tube multi-stage air separator according to claim 1, characterized in that: The diameter of the seed guide pipe is smaller than the diameters of the horizontal air duct and the vertical air duct.

5. The double-tube multi-stage air separator according to claim 1, characterized in that: The seed box is an inclined warehouse structure with a larger upper part and a smaller lower part.

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