A wide sliding arc array plasma seed pre-seeding treatment device and method

By using a wide-range sliding arc array plasma generation system and seed groove belt cloth seeder in the seed seed pre-treatment device, the problems of uneven plasma flow field and difficulty in controlling dose accuracy are solved, and the uniformity and dose accuracy of seed treatment are improved, and the seed quality and device adaptability are improved.

CN118285191BActive Publication Date: 2025-04-25CHINA AGRI UNIV
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Patent Information

Application Number
CN202410403393.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-03
Publication Date
2025-04-25
Estimated Expiration
2044-04-03

AI Technical Summary

Technical Problem

The existing seed pre-sowing treatment devices have problems such as uneven plasma flow field, unstable, poor treatment uniformity and difficult dose accuracy control.

Method used

A wide-frame sliding arc array plasma generation system is adopted to guide the rectangular air duct through negative pressure to achieve uniformity and stability of the plasma flow field. Combined with the seed belt cloth and gas flow system, continuous uniform treatment of seeds and dose accuracy control are achieved.

Benefits of technology

The uniformity and dose accuracy of plasma treatment are improved, the seed seed sowing quality is enhanced, and the adaptability of the seed device is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a wide sliding arc array plasma seed pre-sowing treatment device and method, comprising: a seed strip conveyor system, a seed trough belt seed spreader, a wide sliding arc array plasma generation system, a seed collector, a gas flow system, and a frame. The seed strip conveyor belt continuously transports seeds through the seed trough belt seed spreader, the wide sliding arc array plasma generation system, and the seed collector to complete operations such as seeding, seed spreading, plasma treatment, seed cleaning, and seed collection; the wide sliding arc array plasma generation system includes a sliding arc discharge monomer, and the sliding arc discharge monomer installs a deformable electrode in a rectangular air duct to generate a wide plasma. The bottom of the seed trough is provided with spaced-apart voltage-stabilizing beads and voltage-stabilizing holes to achieve uniform discharge of the wide plasma around the seeds and wrap the seeds. The present invention achieves seed disinfection and vitality enhancement, and improves the quality of seed sowing.
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Description

Technical Field

[0001] The invention relates to the technical field of agricultural processing technology and agricultural machinery, and in particular to a wide sliding arc array plasma seed pre-sowing treatment device and method. Background Art

[0002] Seeds are the most basic means of agricultural production. Ensuring seed sowing quality is an inherent factor in achieving high-yield and high-quality agricultural production, and is a key factor in determining crop yield and quality. Seed vigor is an important indicator for measuring seed quality before sowing. High-vigorous seeds germinate quickly and evenly after sowing, with high seedling rates and strong seedling rates, which is a guarantee for increasing crop field density and an important basis for improving crop yield and quality.

[0003] Seed pre-sowing treatment technology is an important means to improve seed sowing quality, and has important practical significance for improving crop yield and quality. At present, the methods for improving seed sowing quality mainly include chemical, physical and biological treatments. Chinese patent document CN116711498B discloses a plasma seed pre-sowing treatment device and method, which uses physical means to improve seed sowing quality. Compared with chemical treatment, it can reduce the use of fertilizers and pesticides, which is of great significance to the sustainable development of agriculture.

[0004] In order to solve the problems of uneven germination, diseased seedlings, and missing seedlings after seed sowing, a highly adaptable sowing device with pre-sowing treatment function can help crops achieve favorable growth in various growth stages from seed germination, seedling growth, development to maturity. It is an important physical means that directly affects crop growth and development and determines the yield and quality of crops. Currently, existing treatment devices have problems such as uneven and unstable plasma flow field, uniformity of plasma treatment seeds, and inability to accurately control the plasma treatment dose. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a plasma seed pre-sowing treatment device and method, which improves the adaptability of the sowing device through technologies such as seed vitality enhancement and seed surface disinfection.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention includes:

[0007] A wide sliding arc array plasma seed pre-sowing treatment device, characterized in that the device includes: a seed strip conveying system, a seed trough belt type seed spreader, a wide sliding arc array plasma generating system, a seed collector, a gas flow system and a frame. The seed strip conveying system includes a conveying roller, a tensioning module and a seed strip conveyor belt, and the seed strip conveyor belt continuously conveys seeds through the seed trough belt type seed spreader, the wide sliding arc array plasma generating system, the seed collector and other main functional units to complete operations such as seeding, seed spreading, plasma treatment, seed cleaning and seed collection; the seed trough belt type seed spreader includes an angle adjustment module, a power roller, a rubber roller, a seed box, a seed spreader base, a secondary transmission gear box, a conveyor belt fixer, and a seed trough. The seed trough belt type seed spreader is connected to the seed trough by the angle adjustment modules and the seed spreader on both sides. The base of the device is installed on the conveyor frame, and the seed grooves are evenly distributed on the seed strip conveyor belt. The seed strip conveyor belt passes through the conveyor belt fixture and is built into the bottom of the seed box. The inclined seed groove with adjustable bevel angle is used to implement the seeding operation; the wide sliding arc array plasma generating system includes a sliding arc discharge monomer, and the sliding arc discharge monomer is a rectangular air duct composed of three rectangular hollow tubes, including a negative pressure drainage interface, an air inlet pipe and a discharge matrix. The air inlet pipe is provided with a rectangular air valve in the rectangular air duct. The discharge matrix is ​​installed on the conveyor frame through a slide groove. The linear push rod installs the sliding arc electrodes configured in pairs in the center of the rectangular air duct, and generates wide plasma under the drive of the plasma power supply. The seed strip conveyor belt adopts a long strip seed groove to convey the seed strip to the middle of the rectangular air duct. The bottom of the seed groove is provided with a seed groove stabilizing hole that runs through the seed strip conveyor belt, which can make the flow field in the seed groove automatically adjust the local electric field strength distribution around the seeds by changing the plasma distribution, so that the wide plasma is evenly discharged around the seeds to realize the plasma wrapping treatment of the seeds; the seed collector is packaged It includes a seed cleaning air nozzle, a seed collector hood, and a collection bin. The air nozzle clears all the seeds in the seed trough and blows them into the collection bin in the seed collector. The seed collector includes a seed cleaning air nozzle, which is connected to the gas flow system through an air flow pipe to blow the seeds treated with plasma into the seed collector; the gas flow system includes a diverter, an air flow pipeline and a fan. The air flow pipeline is connected to the air inlet of the fan to provide negative pressure airflow for the negative pressure drainage interface to guide the plasma to the surroundings of the seeds. The air flow pipeline is connected to the air outlet of the fan to provide positive pressure airflow for the seed cleaning air nozzle.

[0008] Preferably, the seed trough belt seed spreader determines the seed spreading operation angle of the inclined seed trough according to seed parameters such as seed type and repose angle. The angle adjustment module drives the inclined seed trough to rotate around the axis of the power roller through the annular guide rail to achieve precise control of the inclined surface angle of the inclined seed trough. By changing the force applied to the seeds, the seeds outside the seed trough fall back to the seed supply area along the inclined surface; the accumulation of seeds at the rubber roller is avoided to affect the operation efficiency; and the orderly and uniform distribution of seeds on the seed strip conveyor belt is achieved in combination with the rubber roller operation.

[0009] Preferably, the sliding arc discharge monomer integrates the seed strip conveying system, the seed slot belt type seed distributor, and the gas flow system into the wide sliding arc array plasma generation system through the seed strip conveyor belt and the negative pressure drainage interface to achieve continuous and uniform seed processing. The negative pressure drainage interface provides a uniform and stable plasma flow field for the sliding arc discharge monomer, and the sliding arc discharge monomer achieves uniform and stable production of wide plasma under atmospheric pressure open environment conditions. Further preferably, the gas flow rate in the working area is 5m / s.

[0010] Preferably, the rectangular air duct tube body of the sliding arc discharge unit is installed close to the surface of the seed strip conveyor belt, and the sliding arc discharge unit and the negative pressure drainage interface are respectively arranged on both sides of the seed strip conveyor belt. Through the close fit of the surfaces of the two on the outside of the long seed groove, the pressure-stabilizing hole at the bottom of the seed groove becomes the only channel connecting the rectangular air duct of the sliding arc discharge unit. The bottom of the seed groove is provided with spaced pressure-stabilizing beads and pressure-stabilizing holes to ensure the uniformity and stability of the negative pressure airflow in the seed groove, so as to realize uniform discharge of wide-width plasma around the seeds and wrap the seeds.

[0011] Preferably, the sliding arc electrode is a deformable electrode made of flexible conductive material, a plurality of through holes are provided at the bottom of the sliding arc electrode, and the plurality of linear push rods are respectively fixed on a plurality of linear push rods, and the linear push rods are linear actuators, and the electrode shape of the sliding arc electrode is regulated by changing the extension length of the linear push rods.

[0012] Preferably, the wide sliding arc array plasma generating system comprises a plurality of groups of sliding arc discharge monomers, and the array method comprises the number of arrays and the arrangement and combination of the plurality of groups of wide sliding arc discharge monomers, which are used to implement precise dose plasma treatment on seeds before sowing.

[0013] Preferably, the fan outlet is provided with an exhaust gas processor, which is used to process the plasma gas that has finished working to avoid gas pollution.

[0014] And a seed slot mesh belt type wide sliding arc array plasma seed sowing pre-treatment method, which uses a seed slot mesh belt type wide sliding arc array plasma seed sowing pre-treatment device of the present invention, comprising the following steps:

[0015] Step 1: Carry out equipment self-inspection to ensure that the mechanical structure of the device is safe, the electrical insulation is good, and the switch control communication is normal.

[0016] Step 2: Load the seeds into the seed box according to the seed processing volume. The seeds to be processed should be carefully selected, and the purity, cleanliness, moisture and germination rate of the seeds should meet the national standards.

[0017] Step three, select a wide sliding arc array plasma seed pre-sowing treatment process according to the seed type, set the sliding arc discharge voltage and current through the plasma power supply, and set the treatment dose by the number of sliding arc discharge monomers opened.

[0018] Step 4: Start the fan of the gas flow system and check the working conditions of the gas flow pipeline and its interface. Open the air valve after the air tightness check is passed. After the gas flow system is working stably, turn on the wide sliding arc array plasma generation system.

[0019] Step 5: Turn on the plasma power supply and the air valve in sequence. The plasma power supply drives the discharge module to generate wide plasma. After the sliding arc discharge monomer works stably, the seed strip conveying system is turned on.

[0020] Step six, start the seed strip conveyor system, the seed box provides sufficient seeds to the seed strip conveyor belt to fill the seed slot, and the seed slot belt seed spreader allows the seeds outside the seed slot to flow back to the seed supply area, so that the seeds are evenly distributed in the seed slot.

[0021] Step 7: After the seed strip conveying system works stably, the seeds are transported sequentially through the stable wide sliding arc array plasma generating system and the seed collector. After the plasma treatment, the seeds fall from the seed slot into the seed collector, and the wind nozzle in the seed collector removes all the seeds in the seed slot and blows them into the collection bin in the seed collector.

[0022] Compared with the prior art, the technical effects of the present invention are:

[0023] 1. The present invention adopts a negative pressure-guided rectangular air duct to achieve uniformity and stability of the plasma flow field, thereby improving the uniformity of atmospheric pressure discharge; the present invention realizes uniform and stable production of wide-width plasma under atmospheric pressure open environment conditions through sliding arc discharge monomers.

[0024] 2. The seed trough belt seed spreader of the present invention adopts an inclined seed trough with adjustable bevel angle to implement seed spreading operations, and the seed strip conveyor belt adopts long strip seed troughs and their arrays to implement single-layer seed strip distribution control of multiple seeds, which solves the problem of physical shielding of seeds and ensures the seed strip processing effect.

[0025] 3. The present invention adopts a solution combining wide-width plasma with negative pressure seed tank, which realizes uniform discharge of plasma around the seeds and improves the uniformity of plasma treatment of seeds.

[0026] 4. The present invention adopts a wide-width sliding arc discharge plasma array solution to achieve precise control of the sliding arc plasma treatment dose and improve the efficiency of the sliding arc seed treatment.

[0027] 5. The present invention uniformly implements plasma seed pre-sowing treatment to achieve seed disinfection and vitality enhancement, improve seed sowing quality, and has high applicability to different sowing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0029] Figure 1 This is a schematic diagram of the overall structure of the seed pre-sowing treatment device of the present invention;

[0030] Figure 2 It is a cross-sectional view of the seed pre-sowing treatment device of the present invention;

[0031] Figure 3 It is a schematic diagram of a seed trough belt type seed spreader of a seed pre-sowing treatment device of the present invention;

[0032] Figure 4 It is a schematic diagram of a sliding arc discharge monomer array of a seed pre-sowing treatment device of the present invention;

[0033] Figure 5 This is a schematic diagram of adjusting the shape of electrodes in the seed pre-sowing treatment device of the present invention;

[0034] Figure 6 It is a schematic diagram of a long strip negative pressure seed tank of the seed pre-sowing treatment device of the present invention;

[0035] Figure 7 A schematic diagram of a seed collector of a seed pre-sowing treatment device of the present invention;

[0036] Reference numerals

[0037] 1-strip conveying system; 2-slotted belt seed distributor; 3-wide sliding arc array plasma generation system; 4-seed collector; 5-gas flow system; 6-frame; 101-conveying roller; 102-tensioning module; 103-strip conveyor belt; 201-angle adjuster; 202-power roller; 203-rubber roller; 204-seed box; 205-seed distributor base; 206-power roller terminal; 207-gear; 208-secondary transmission gear box; 209-conveyor belt holder; 210-seed slot; 211-seed supply area; 212-angle adjustment screw; 301-sliding arc discharge monomer; 302-processing chamber; 303 -negative pressure drainage interface; 304-air valve; 305-air inlet; 306-air inlet pipe; 307-discharge matrix; 308-sliding arc electrode; 309-linear push rod; 310-sliding arc electrode II; 311-sliding arc electrode III; 312-seed; 313-prism; 314-pressure stabilizing bead; 315-pressure stabilizing hole; 401-seed cleaning nozzle; 402-seed collector cover; 403-collection bin; 404-discharge switch valve; 501-diverter; 502-airflow pipeline; 503-fan; 504-motor; 506-fan outlet; 507-fan inlet; 601-machine frame; 602-conveying frame. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the term "connected" should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or an integral connection can be a mechanical connection, or an electrical connection can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0040] The terms "top", "bottom", "above", "lower", and "on" used throughout the description are relative to the relative positions of components of a device, such as the relative positions of the top and bottom substrates within a device. It is understood that devices are multifunctional regardless of their orientation in space.

[0041] To facilitate understanding of the embodiments of the present application, further explanation will be given below with reference to specific embodiments in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present application.

[0042] Embodiment 1

[0043] The first embodiment discloses a wide sliding arc array plasma seed pre-sowing treatment device, which treats plant seeds by sliding arc plasma.

[0044] See attached Figure 1-7 The device includes a seed strip conveying system 1, a seed trough belt seed distributor 2, a wide sliding arc array plasma generating system 3, a seed collector 4, a gas flow system 5 and a frame 6. The seed strip conveying system 1 includes a conveying roller 101, a tensioning module 102 and a seed strip conveyor belt 103, and the seed trough belt seed distributor 2 includes an angle adjustment module 201, a power roller 202, a rubber roller 203, a seed box 204, a seed distributor base 205, a secondary transmission gear box 208, a conveyor belt fixer 209, a seed trough 210, a seed supply area 211, and an angle adjustment screw 212; the wide sliding arc array plasma generating system 3 includes a sliding arc discharge unit 301 and a processing chamber 302, and the sliding arc discharge unit 301 includes a negative pressure drainage interface 303, an air inlet pipe 30 6 and a discharge base 307, the air inlet pipe 306 includes an air valve 304 and an air inlet 305, and the discharge base 307 includes a sliding arc electrode 308 and a linear push rod 309; the seed collector 4 includes a seed cleaning air nozzle 401, a seed collector cover 402, a collecting bin 403, a discharge switch valve 404, and a discharge port; the gas flow system 5 includes a diverter 501, an airflow pipeline 502, a fan 503 motor 504, and the airflow pipeline includes a fan outlet 506 and a fan inlet 507; the frame 6 includes a complete machine frame 601, a conveying frame 602, and a fan frame.

[0045] like Figure 2 As shown, the conveyor frame 602 is a hollow rectangular frame, the fan 503 is horizontally arranged in the center of the whole machine frame 601, the processing chamber 302 is installed above the conveyor frame 602, the seed trough belt type seed distributor 2 and the seed collector 4 are respectively installed on both sides of the conveyor frame 602, and the seed strip conveyor belt 103 runs circumferentially along the trapezoidal frame of the conveyor frame 602, and continuously transports seeds through the main functional units such as the seed trough belt type seed distributor 2, the wide sliding arc array plasma generating system 3, and the seed collector 4 to complete the operations of seeding, seed spreading, plasma treatment, seed cleaning and seed collection, so as to achieve seed disinfection and vitality enhancement, and improve the adaptability of the sowing device.

[0046] like Figure 3As shown, the seed strip conveyor belt 103 passes through the seed slot belt seed distributor 2 and is built into the bottom of the seed box 204. The weight of the seeds ensures that the seed supply area 211 at the bottom of the seed box 204 always has sufficient seeds to fill the seed slot 210. The seed strip conveyor belt 103 climbs along the bottom plane of the seed box, and lifts the seeds from the seed supply area at the bottom of the seed box to the rubber roller 203. The rubber roller 203 is installed close to the surface of the seed strip conveyor belt 103, and the close fit between the surfaces of the two prevents the seeds outside the seed slot 210 from passing. The power roller 202 is arranged opposite to the rubber roller 203, and is respectively installed on both sides of the seed strip conveyor belt 103. The power roller 202 drives the rubber roller 203 through the power of the seed strip transmission system 1 through the secondary transmission gear box 208, and the seeds outside the seed slot 210 flow back to the seed supply area 211 through the relative movement of the rubber roller 203 and the seed strip conveyor belt 103.

[0047] The seed slot belt seed distributor 2 is installed on the conveyor frame 602 through the angle adjusters 201 on both sides and the seed distributor base 205. The angle adjustment module can drive the conveyor belt holder 209 to rotate around the axis of the power roller 202 to adjust the local running angle of the seed strip conveyor belt 103. According to seed parameters such as seed type and repose angle, the inclined running angle of the inclined seed slot 210 is determined, and by changing the force of the seeds, the seeds outside the seed slot 210 fall back to the seed supply area 211 along the inclined surface to avoid the accumulation of seeds at the rubber roller 203 affecting the operation.

[0048] like Figure 4 As shown, the wide sliding arc array plasma generation system 3 includes a sliding arc discharge unit 301 and a processing chamber 302. The sliding arc discharge unit 301 includes a negative pressure drainage interface 303, an air inlet pipe 306 and a discharge substrate 307.

[0049] like Figure 4 As shown, the sliding arc discharge monomer 301 is a rectangular air duct composed of three rectangular hollow tubes, including a negative pressure drainage interface 303, an air inlet pipe 306 and a discharge matrix 307. The air inlet pipe 306 is provided with a rectangular air valve 304 in the rectangular air duct. The discharge matrix 307 is installed on the conveyor frame 602 through a slide groove. The linear push rod 309 installs the sliding arc electrodes 308 configured in pairs in the center of the rectangular air duct to generate wide plasma under the drive of the plasma power supply. Preferably, the wide sliding arc array plasma generation system 3 includes multiple groups of sliding arc discharge monomers 301, and the array method includes the number of arrays and the arrangement and combination of multiple groups of sliding arc discharge monomers 301.

[0050] In this specific embodiment, it is preferably adopted as follows Figure 5The deformable electrode has a plurality of through holes at the bottom thereof, which are respectively fixed on a plurality of linear push rods 309, which are linear actuators. The shape of the deformable electrode is adjusted by changing the extension length of the linear push rods 309. Further preferably, the deformable electrode adopts the shape of sliding arc electrode 308, sliding arc electrode II 310 and sliding arc electrode III 311. These three electrodes can output plasma on a wider surface, thereby providing a larger processing area and providing conditions for more seed processing.

[0051] See attached Figure 4-6 The seed strip conveyor belt 103 uses a long seed groove 210 to convey seeds to the middle of the rectangular air duct. The rectangular air duct tube body of the sliding arc discharge monomer 301 is installed close to the surface of the seed strip conveyor belt 103. The sliding arc discharge monomer 301 and the negative pressure drainage interface 303 are respectively arranged on both sides of the seed strip conveyor belt 103. Through the close cooperation of the surfaces of the two on the outside of the long seed groove 210, the pressure-stabilizing hole 315 at the bottom of the seed groove 210 becomes the only channel connecting the rectangular air duct of the sliding arc discharge monomer 301. The bottom of the seed groove 210 is provided with spaced-apart pressure-stabilizing beads 314 and pressure-stabilizing holes 315 to ensure the uniformity and stability of the negative pressure airflow in the seed groove, so as to realize the uniform discharge of wide-band plasma around the seeds 312 and wrap the seeds 312.

[0052] like Figure 7 As shown, the seed cleaning nozzle 401 is connected to the gas flow system 5 through the air flow pipeline 502, and the seed cleaning nozzle outlet is located at the bottom of the seed tank, and the positive pressure airflow provided by the fan outlet 506 is used to blow the plasma-treated seeds into the seed collector 4. The bottom of the collection bin 403 is provided with a discharge port, and the discharge switch valve 404 controls the discharge port to be turned on and off.

[0053] Embodiment 2

[0054] The second embodiment provides a wide sliding arc array plasma seed pre-seeding treatment method, which is implemented by using a wide sliding arc array plasma seed pre-seeding treatment device described in the first embodiment.

[0055] In this embodiment, the wide sliding arc array plasma seed pre-seeding treatment method comprises the following steps:

[0056] Step 1: Carry out equipment self-inspection to ensure that the mechanical structure of the device is safe, the electrical insulation is good, and the switch control communication is normal.

[0057] Step 2: Loading seeds into the seed box 204 according to the seed processing amount. The seeds to be processed should be carefully selected, and the purity, cleanliness, moisture and germination rate of the seeds should meet the national standards.

[0058] Step three, select a wide sliding arc array plasma seed pre-sowing treatment process according to the seed type, set the sliding arc discharge voltage and current through the plasma power supply, and set the treatment dose through the number of sliding arc discharge monomers 301 that are opened.

[0059] Step 4: Start the fan 503 of the gas flow system 5 and check the working conditions of the gas flow pipeline 502 and its interface. The air valve 304 is opened after the air tightness check is passed. After the gas flow system works stably, the wide sliding arc array plasma generation system 3 is turned on.

[0060] Step 5: Turn on the plasma power supply and the air valve 304 in sequence. The plasma power supply drives the discharge module to generate wide plasma. After the sliding arc discharge monomer 301 works stably, the seed strip conveying system 1 is turned on.

[0061] Step six, start the seed strip conveyor system 1, the seed box 204 provides sufficient seeds to the seed strip conveyor belt 103 to fill the seed slot 210, and the seed slot belt seed distributor 2 allows the seeds 312 outside the seed slot (210) to flow back to the seed supply area, so that the seeds 312 are evenly distributed in the seed slot 210.

[0062] Step 7: After the seed strip conveying system 1 works stably, the seeds are transported sequentially through the wide sliding arc array plasma generating system 3 and the seed collector 4. After the plasma treatment, the seeds fall from the seed slot 210 into the seed collector 4, and the air nozzle 401 in the seed collector 4 removes all the seeds in the seed slot and blows them into the collection bin 403 in the seed collector 4.

[0063] Through the above method, this embodiment utilizes the seed slot mesh belt type wide sliding arc array plasma seed pre-sowing treatment device to continuously complete uniform seed treatment.

[0064] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A wide sliding arc array plasma seed pre-seeding treatment device, characterized in that: A seed trough belt type seed spreader (2), a wide sliding arc array plasma generating system (3), and a seed collector (4) are sequentially installed on a frame (6) along a seed strip conveying system (1) from front to back, and a gas flow system (5) is installed below the wide sliding arc array plasma generating system (3); the seed strip conveying system (1) comprises a seed strip conveyor belt (103), and the seed strip conveyor belt (103) is slidably connected to the frame (6) to continuously convey seeds through the seed trough belt type seed spreader (2), the wide sliding arc array plasma generating system (3), and the seed collector (4) to complete seeding, seed spreading, plasma treatment, and cleaning. The wide sliding arc array plasma generating system (3) comprises a sliding arc discharge unit (301), wherein the sliding arc discharge unit (301) is a rectangular air duct formed by a rectangular hollow tube body, comprising a negative pressure drainage interface (303), an air inlet pipe (306), a discharge base (307) and a sliding arc electrode (308), wherein the air inlet pipe (306) comprises an air valve (304) and an air inlet (305), the discharge base (307) is slidably connected to a frame (6), and the sliding arc electrode (308) is movably connected to the center of the rectangular air duct, and a wide plasma is generated under the drive of a power source. The seed strip conveyor belt (103) conveys the seeds to the rectangular air duct, and the wide-width plasma processes the seeds; the seed collector (4) includes a seed cleaning nozzle (401), and the seed cleaning nozzle (401) is connected to the fan air outlet (506) to remove all seeds in the long strip negative pressure seed groove (210) and blow them into the collection bin (403); the gas flow system (5) includes an air flow pipeline (502) and a fan (503), and the fan (503) is horizontally arranged at the center of the frame (6), and the air flow pipeline (502) is connected to the fan air inlet (507) to form a negative pressure drainage interface (303) ) provides negative pressure airflow to guide the plasma around the seeds, the airflow pipeline (502) is connected to the fan outlet (506) to provide positive pressure airflow for the seed cleaning nozzle (401); the seed strip conveyor belt (103) is a trapezoidal ring conveyor mesh belt with a series of long strip grooves on one side of the belt body, the long strip grooves are located in the middle of the belt body, and are evenly distributed along the circumference of the trapezoidal ring, and the distribution distance is consistent with the distance of the sliding arc discharge monomer (301) array; the sliding arc discharge monomer (301) forms a wide sliding arc array plasma generation system through multiple groups of arrays, which is used to implement precise dosage pre-sowing treatment operations on seeds; A plurality of prisms (313) are arranged in the long strip groove, dividing the long strip groove into a plurality of seed grooves (210), the seed groove depth being 1.5 times the seed thickness, and being used for controlling the distribution of multiple seeds in a single layer of seed strips; the seed grooves (210) are provided with spaced-apart pressure-stabilizing beads (314) and pressure-stabilizing holes (315) at the bottom, the pressure-stabilizing beads (314) forming a raised structure for carrying seeds, and the pressure-stabilizing holes (315) being a gas passage that penetrates the seed strip conveyor belt; the wide sliding arc array plasma generating system (3) also includes a straight The sliding arc electrode (308) is a deformable electrode made of a flexible conductive material. A plurality of through holes are provided at the bottom of the sliding arc electrode (308) and are respectively fixedly connected to a plurality of linear push rods (309). The linear push rods (309) are arranged in pairs and are respectively fixedly connected to two sides of the sliding arc discharge monomer (301). The linear push rods (309) are linear actuators. The electrode shape of the sliding arc electrode (308) is regulated by changing the extension length of the linear push rods (309).

2. The wide sliding arc array plasma seed pre-sowing treatment device according to claim 1, characterized in that: The seed trough belt seed distributor (2) comprises an angle adjuster (201), a rubber roller (203), a seed box (204), a seed distributor base (205), and a conveyor belt holder (209). The seed box (204) is fixedly connected to the frame (6) via the angle adjusters (201) and the seed distributor base (205) on both sides. The seed strip conveyor belt (103) passes through the conveyor belt holder (209) and is built into the bottom of the seed box (204). The weight of the seeds ensures that the seed supply area at the bottom of the seed box (204) is always Finally, there are enough seeds to fill the seed slot (210). The rubber roller (203) is fixedly connected to the seed box (204) and installed close to the surface of the seed strip conveyor belt (103). The close fit between the surfaces of the two prevents seeds outside the seed slot (210) from passing through, thereby implementing single-layer seed strip distribution control for multiple seeds. The angle adjuster (201) is slidably connected to the conveyor belt holder (209) via an annular guide rail, and the conveyor belt holder (209) adjusts the seed distribution running angle of the seed strip conveyor belt (103) along the annular guide rail.

3. A wide sliding arc array plasma seed pre-seeding treatment method, characterized in that: The processing method is based on the wide sliding arc array plasma seed pre-sowing processing device described in claim 2, and comprises the following steps: Step 1: Carry out equipment self-inspection to ensure that the mechanical structure of the device is safe, the electrical insulation is good, and the switch control communication is normal; Step 2: Loading seeds into the seed box (204) according to the seed processing amount, the seeds to be processed are carefully selected, and the purity, cleanliness, moisture and germination rate of the seeds meet the national standards; Step 3: Select a wide sliding arc array plasma seed pre-sowing treatment process according to the seed type, set the sliding arc discharge voltage and current through the plasma power supply, and set the treatment dosage through the number of sliding arc discharge monomers (301) opened; Step 4: Start the fan (503) of the gas flow system (5), check the working conditions of the gas flow pipeline (502) and its interface, open the air valve (304) after the air tightness check is passed, and start the wide sliding arc array plasma generation system (3) after the gas flow system is working stably; Step 5: sequentially turn on the plasma power supply and the air valve (304), the plasma power supply drives the sliding arc discharge to generate wide plasma, and after the sliding arc discharge monomer (301) works stably, the seed strip conveying system (1) is turned on; Step 6: The seed box (204) provides sufficient seeds for the seed strip conveyor belt (103) to fill the seed slot (210), and the seed slot belt seed distributor (2) causes the seeds outside the seed slot (210) to flow back to the seed supply area, so that the seeds are evenly distributed in the seed slot (210); Step seven, after the seed strip conveying system (1) is operating stably, the seeds are transported sequentially through the stably operating wide-width sliding arc array plasma generating system (3) and the seed collector (4). After the seeds are treated with plasma, they fall from the seed slot (210) into the seed collector (4). The seed cleaning nozzle (401) in the seed collector (4) removes all the seeds in the seed slot and blows them into the collecting bin (403).

Citation Information

Patent Citations

  • A pneumatic suction spiral feeding plasma seed pre-treatment device and method

    CN116711498B

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    CN115943772A

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    CN116711498A