A plasma generator for degradation of grain toxins

Abstract

The utility model provides a kind of plasma generator for grain toxin degradation, including the dot matrix electrode and flat plate electrode of parallel interval arrangement, dot matrix electrode includes first structure substrate, and the side of first structure substrate close to flat plate electrode is provided with discrete discharge unit, and the side of flat plate electrode close to dot matrix electrode is provided with insulating plate.The utility model realizes the uniform excitation and effect of plasma in grain layer, is conducive to improving the comprehensiveness and efficiency of toxin degradation.

Description

Technical Field

[0001] This utility model relates to the field of plasma generator technology, and in particular to a plasma generator for the degradation of cereal toxins. Background Technology

[0002] Plasma generators can be used for the degradation of cereal toxins. For example, patent document CN118542479A discloses a cereal mycotoxin degradation device based on plasma technology. Its discharge module consists of a replaceable high-voltage electrode plate. The electrode plate structure comprises three parts: an uppermost high-voltage metal plate, a sandwiched polytetrafluoroethylene dielectric plate, and a lowermost hexagonal metal mesh forming a grounding electrode. This structure uses a single piece of metal for the high-voltage metal plate, which is prone to uneven plasma distribution and poor localized treatment. Furthermore, when a high-frequency alternating electric field is applied between the electrodes, edge effects can easily cause electric field distortion. These problems affect the uniform distribution of plasma in the cereal, reducing the comprehensiveness and efficiency of toxin degradation. Utility Model Content

[0003] This invention proposes a plasma generator for the degradation of grain toxins, which achieves uniform excitation and action of plasma within the grain layer, thereby improving the comprehensiveness and efficiency of toxin degradation.

[0004] The technical solution of this utility model is implemented as follows: a plasma generator for the degradation of cereal toxins includes a lattice electrode and a flat plate electrode arranged in parallel and spaced apart. The lattice electrode includes a first structural substrate. Discrete discharge units are arranged on the side of the first structural substrate near the flat plate electrode. An insulating plate is arranged on the side of the flat plate electrode near the lattice electrode.

[0005] Furthermore, the discharge unit is a conductive metal point, which is regularly arranged on the first structural substrate.

[0006] Furthermore, the planar electrode includes a second structural substrate, on the side of the second structural substrate near the insulating plate, a metal conductor plating layer is provided.

[0007] Furthermore, the area of ​​the metal conductor plating is smaller than that of the insulating plate, and the edge of the metal conductor plating differs from the edge of the insulating plate by 1.0-1.5 cm.

[0008] Furthermore, the insulating board is a ceramic insulating board.

[0009] The beneficial effects of this utility model are: The plasma generator of this invention uses a flat plate electrode and an insulating plate to form a flat plate insulating dielectric electrode. The insulating plate can constrain the electric field distribution and avoid electric field distortion caused by edge effects. The lattice electrode makes the discharge point distribution more precise and uniform, so that the electric field energy can be uniformly penetrated into the grain layer in a "point-to-surface" combination.

[0010] This invention achieves uniform excitation and action of plasma within the grain layer through a combination design of "flat insulating dielectric electrode + lattice metal electrode", effectively improving the comprehensiveness and efficiency of toxin degradation. It combines structural simplicity with practicality and is suitable for grain toxin pretreatment in scenarios such as grain storage and processing. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is the front view of the present invention; Figure 2 The three-dimensional representation of this utility model Figure 1 ; Figure 3 The three-dimensional representation of this utility model Figure 2 ; Figure 4 The three-dimensional representation of this utility model Figure 3 .

[0013] First structural substrate 1, discharge unit 2, metal conductor plating layer 3, insulating plate 4, second structural substrate 5. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1-4As shown, a plasma generator for the degradation of cereal toxins includes parallel, spaced-apart lattice electrodes and planar electrodes. The lattice electrodes include a first structural substrate 1, which is a non-conductive plate. Discrete discharge units 2 are disposed on the first structural substrate 1 near the planar electrodes. The discharge units 2 are conductive metal dots, regularly arranged on the first structural substrate 1. The conductive metals, such as copper and stainless steel, are arranged in a regular pattern, such as a circular, square, or rhomboid lattice. Compared to traditional full-surface metal electrodes, this embodiment uses an array of conductive metal dots, making the discharge point distribution more precise and uniform.

[0016] An insulating plate 4, such as alumina ceramic or silicon nitride ceramic, is attached to the side of the planar electrode near the lattice electrode to form a stable insulating interface. The planar electrode includes a second structural substrate 5, on which a metal conductor plating layer 3, such as copper, is provided. The area of ​​the metal conductor plating layer 3 is smaller than that of the insulating plate 4, and the edge of the metal conductor plating layer 3 differs from the edge of the insulating plate 4 by 1.0-1.5 cm. Other structures of the plasma generator are existing technologies and will not be described in detail here.

[0017] The plasma generator is used as follows: lattice electrodes and flat plate electrodes are arranged in parallel and spaced apart, forming a processing chamber for placing the grains to be processed; during operation, the grains to be degraded (such as wheat, corn, rice, etc.) are filled into the processing chamber, covering the effective working area between the two electrodes.

[0018] A high-frequency alternating electric field is applied between the two electrodes using a high-frequency power supply: the insulating plate of the flat plate electrode can constrain the electric field distribution and avoid electric field distortion caused by edge effects; while the discrete discharge characteristics of the lattice electrode allow the electric field energy to penetrate evenly into the grain layer in a "point-to-surface" combination.

[0019] Under the action of a high-frequency electric field, air molecules (or optionally introduced inert gas) are ionized and excited to generate high-energy plasma (containing electrons, ions, free radicals and reactive oxygen species, etc.). Compared with the local concentrated plasma generated by traditional whole-surface electrodes, the discrete discharge unit with lattice structure can make the plasma diffuse evenly within the grain layer, covering the surface and internal microenvironment of each grain, thereby achieving efficient and uniform degradation of mycotoxins.

[0020] The plasma generator is suitable for degrading common fungal toxins in grains, including but not limited to: aflatoxin B1 (AFB1), vomitoxin (deoxynivalenol, DON), zearalenone (ZEN), fumonisins (FB1 / FB2), etc. After being treated with plasma, the molecular structure of the above toxins is destroyed (such as functional group oxidation), and the toxicity is significantly reduced, thereby improving the food safety and processing suitability of grains.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plasma generator for the degradation of cereal toxins, characterized in that: It includes a lattice electrode and a flat plate electrode arranged in parallel. The lattice electrode includes a first structural substrate. Discrete discharge units are arranged on the side of the first structural substrate near the flat plate electrode. An insulating plate is arranged on the side of the flat plate electrode near the lattice electrode.

2. The plasma generator for the degradation of cereal toxins according to claim 1, characterized in that: The discharge unit is a conductive metal point, which is regularly arranged on the first structural substrate.

3. A plasma generator for the degradation of cereal toxins according to claim 1 or 2, characterized in that: The planar electrode includes a second structural substrate, on the side of the second structural substrate near the insulating plate, a metal conductor plating layer is provided.

4. A plasma generator for the degradation of cereal toxins according to claim 3, characterized in that: The area of ​​the metal conductor plating is smaller than that of the insulating board, and the edge of the metal conductor plating is 1.0-1.5 cm away from the edge of the insulating board.

5. A plasma generator for the degradation of cereal toxins according to claim 1, characterized in that: The insulating board is a ceramic insulating board.

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