[0030] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention.
[0031] Such as Figure 1-Figure 4 As shown, a cold plasma centering and large particle seed modification treatment equipment includes an upper barrel 2, a lower barrel 4, and a vacuum chamber 6 connecting the upper barrel 2 and the lower barrel 4, and the vacuum chamber 6 An air extraction port 8 is provided on the air extraction port 8 which is connected with a mechanical pump 10. The vacuum chamber 6 is provided with a discharge processing device and a conveying device. The discharge processing device includes two polar plates 12 arranged in parallel and opposite to the two polar plates 12 The connected discharge processing radio frequency power supply, the distance between the two electrode plates 12 is 30-40mm, and the vacuum chamber 6 is also provided with a pre-ionization device. The pre-ionization device includes an electrode 14 and a pre-ionization radio frequency power supply connected to the electrode 14 , The pre-ionization radio frequency power supply is a single output electrode, and the vacuum chamber 6 is connected to the ground.
[0032] In the present invention, the distance d between the electrode 14 and the vacuum chamber 6 is preferably 10 mm. Preferably, the longitudinal section of the vacuum chamber 6 is circular, and the electrode 14 is an arc-shaped electrode concentric with the vacuum chamber 6.
[0033] The preferred conveying device of the present invention includes an insulating support 16, a driving roller 18, a driven roller (not shown in the figure), and a conveying belt 20. The driving roller 18 and the driven roller are respectively arranged at both ends of the insulating support 16, and the conveying belt 20 is placed on the driving Above the roller 18 and the driven roller. The driven roller is provided with a tensioning device (not shown in the figure). The conveyor belt 20 passes through the inside of the electric discharge treatment device. In order to facilitate the passage of medium and large grain seeds between the two electrode plates 12, the conveyor belt 20 preferably passes through the surface of the electrode plate 12 located below. In order to ensure the stable operation of the conveyor belt 20, the present invention preferably has a pressing roller 22 fixed at one end of the insulating support 16 and the pressing roller 22 presses the conveyor belt 20 on the driving roller 18. The shaft cores of the driving roller 18, the driven roller and the pressure roller 22 are all stainless steel materials, and are coated with insulating rubber. In the present invention, it is preferable that the two electrode plates 12 and the electrodes 14 are both arranged on the insulating support 16, and the insulating support 16 is located directly above the suction port 8.
[0034] Both pole plates 12 have a suspended metal shell 24 for shielding and filled with insulating material 26. Each electrode plate 12 is provided with an electrode connector 28 connected to a discharge processing radio frequency power supply through a coaxial cable 30. Such as Figure 5 As shown, in the present invention, the preferred discharge treatment radio frequency power supply is a dual output power supply device. The dual output power supply device includes a radio frequency power supply 32 and a transformer 34. The transformer 34 is only grounded on the primary side and connected to the two pole plates 12 of the load after the secondary side is output.
[0035] In the present invention, the conveyor belt 20 is preferably made of natural polymer material, and the natural polymer material is cotton, hemp, linen or silk products.
[0036] In the present invention, it is preferable that a feeding high-vacuum butterfly valve 36 is connected between the feeding barrel 2 and the vacuum cavity 6, and a feeding high-vacuum butterfly valve 38 is connected between the feeding barrel 4 and the vacuum cavity 6.
[0037] In the present invention, the working pressure of the vacuum chamber 6 is preferably 250 Pa. The vacuum chamber 6 is provided with an intake shut-off valve 40 and a discharge valve 42. The intake shut-off valve 40 is used to pass in the discharge gas. The discharge gas is one or any of air, argon, oxygen, helium and nitrogen. A mixture of several gases.
[0038] Preferably, the frequencies of the discharge treatment radio frequency power supply and the pre-ionization radio frequency power supply are both 13.56 MHz.
[0039] When the present invention is in use, the upper bucket 2 is opened, and the processed seeds are put into the upper bucket 2. At this time, the high-vacuum butterfly valve 36 is closed, the high-vacuum butterfly valve 38 is open, and the lid is closed. Tank 2, turn on the mechanical pump 10 to pump air from the suction port 8 of the vacuum chamber 6. When the pressure value is the specified value, wait for the set ionization vacuum value to stabilize, then turn on the pre-ionization radio frequency power supply, and adjust the set clockwise Power, the power is set to 200 W, the ionization begins, the electrode 14 generates plasma, the radio frequency power supply 32 is turned on, and the set power is adjusted clockwise, a glow discharge area is generated between the upper and lower plates 12, and the loading is slowly turned on The feeding high-vacuum butterfly valve 36 of the bucket 2 drops the seeds onto the conveyor belt 20, and the treatment starts, the active roller 18 is turned on, and the process modification time is set. The seeds are driven by the conveyor belt 20 through the glow discharge zone and then fall into the lower bucket 4 Within, complete a processing process. After the seed treatment is completed, turn off the pre-ionization radio frequency power supply and the discharge processing radio frequency power supply, turn off the air inlet shut-off valve 40 clockwise, stop the active roller 18, close the high vacuum butterfly valve 38 of the feeding bucket 4, turn off the mechanical pump 10, and turn on the discharge The air valve 42 fills the vacuum chamber 6 with atmosphere, and finally opens the manual vent valve 44 of the lower hopper 4, then turns the sealing cover of the lower hopper 4 counterclockwise to take out the processed seeds, and closes the manual vent valve 44.
[0040] The culture experiment of American red oak treated by the cold plasma modification treatment equipment of the present invention is as follows Image 6 As shown, Figure 7 In order to use existing cold plasma processing equipment to process the germination map of American red oak. The red oak germinated earlier and more after being treated by the cold plasma modification treatment device of the present invention, indicating that it promoted the germination of seeds.
[0041] The above is based on the ideal embodiment of the present invention as inspiration. Through the above description, relevant personnel can make various changes and modifications within the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the description, and the technical scope must be determined according to the scope of the claims.
